An antenna for wireless power transfer includes a first antenna portion and a second antenna portion. The first antenna portion includes a first antenna terminal, a second antenna terminal, at least one first inner turn, at least one first outer turn, and a first wire crossover electrically connecting the at least one first inner turn with the at least one second outer turn. The antenna further includes a second antenna portion including a third antenna terminal, a fourth antenna terminal, at least one second inner turn, at least one second outer turn, and a second wire crossover electrically connecting the at least one second inner turn with the at least one second outer turn. The second antenna terminal is in electrical connection with the third antenna terminal and the first antenna terminal and fourth antenna terminal are configured for electrical connection with a transmitter circuit.
H02J 50/23 - Circuit arrangements or systems for wireless supply or distribution of electric power using microwaves or radio frequency waves characterised by the type of transmitting antennas, e.g. directional array antennas or Yagi antennas
H01Q 7/00 - Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop
H02J 50/40 - Circuit arrangements or systems for wireless supply or distribution of electric power using two or more transmitting or receiving devices
2.
Device Synchronization Eco-System Utilizing Wireless Power and Data Transfer Systems
A method for operating a wireless transmission system includes (i) receiving, as input, direct current (DC) power from a power and data connector that comprises a power input and a bi-directional data connector, (ii) generating a driving signal for driving an antenna of the wireless power transmission system, (iii) generating alternating current (AC) wireless signals based on the input DC power and the driving signal, (iv) propagate AC wireless power signals that are based on the AC wireless signals via the antenna, (v) couple with a wireless receiver system via the AC wireless power signals, (vi) receiving data associated with a peripheral device by decoding in-band data signals from the AC wireless power signals that are encoded by the wireless receiver system, and (vii) providing the data associated with the peripheral device to a client device operatively associated with the wireless transmission system, via the bi-directional data connector.
H02J 50/80 - Circuit arrangements or systems for wireless supply or distribution of electric power involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
H02J 50/12 - Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling of the resonant type
3.
False Notification Suppression In Wireless Power Transfer System
A power transmitter for wireless power transfer includes a sensing system, a feedback mechanism and a control and communications unit includes a controller configured to receive object detection data from the sensing system, if a power receiver is detected, reset an alert timer, if the power receiver has been detected and a disconnect is detected, determine if an alert timer value is greater than an alert threshold, if a disconnect is detected and the alert timer value is greater than the alert threshold, instruct the feedback mechanism to output an alert. The power transmitter further includes an inverter circuit configured to receive a direct current (DC) power and convert the input power to a power signal and a coil configured to transmit the power signal to a power receiver, the coil formed of wound Litz wire and including at least one layer, the coil defining, at least, a top face.
H02J 50/80 - Circuit arrangements or systems for wireless supply or distribution of electric power involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
H02J 50/12 - Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling of the resonant type
H02J 50/60 - Circuit arrangements or systems for wireless supply or distribution of electric power responsive to the presence of foreign objects, e.g. detection of living beings
H02J 50/70 - Circuit arrangements or systems for wireless supply or distribution of electric power involving the reduction of electric, magnetic or electromagnetic leakage fields
H02J 50/90 - Circuit arrangements or systems for wireless supply or distribution of electric power involving detection or optimisation of position, e.g. alignment
4.
Wireless Power Transfer With In-Band Virtualized Wired Communications
A transmitter-side host device comprises a transmitter-side antenna and a transmitter-side control system. The transmitter-side control system is configured to: (i) output an unmodulated AC signal for driving the transmitter-side antenna to emit an unmodulated alternating electromagnetic field that delivers wireless power to a receiver-side host device that includes a load and (ii) modulate an in-band data signal onto the unmodulated AC signal and thereby outputting a modulated AC signal for driving the transmitter-side antenna to emit a modulated alternating electromagnetic field that delivers both wireless power and wireless data to the receiver-side host device. The in-band data signal is formatted in accordance with a wireless power and data transfer protocol and carries, as payload, embedded data originating from the transmitter-side host device that is formatted in accordance with a data communication protocol different from the wireless power and data transfer protocol.
H04B 5/79 - Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes for data transfer in combination with power transfer
H02J 50/12 - Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling of the resonant type
H02J 50/20 - Circuit arrangements or systems for wireless supply or distribution of electric power using microwaves or radio frequency waves
H02J 50/40 - Circuit arrangements or systems for wireless supply or distribution of electric power using two or more transmitting or receiving devices
H02J 50/80 - Circuit arrangements or systems for wireless supply or distribution of electric power involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
5.
Software Based Thermal Mitigation for Wireless Power and Data Transfer Systems
A charging apparatus for a wearable device includes a transmitter-side antenna and a transmitter-side control system. The transmitter-side control system is configured to (i) during a first period of time that is prior to the wearable device entering an increased-temperature state, drive the transmitter-side antenna to emit an alternating electromagnetic field for delivering wireless power to the wearable device and (ii) during a second period of time when the wearable device is in the increased-temperature state, toggle between power-on and power-off sub-periods for driving the transmitter-side antenna. During each power-on sub-period, the transmitter-side antenna is driven to emit the alternating electromagnetic field for delivering wireless power to the wearable device. During each power-off sub-period, the transmitter-side antenna is not driven to emit the alternating electromagnetic field for delivering wireless power to the wearable device.
H02J 50/80 - Circuit arrangements or systems for wireless supply or distribution of electric power involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
H02J 7/00 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
H02J 50/10 - Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
6.
Wireless Power Transfer System For Simultaneous Transfer To Multiple Devices
The present application relates to an apparatus which comprises a wireless power transmission system. This system comprises features which allow it to transfer more power wirelessly to multiple devices simultaneously, each at extended distances than other systems operating in the same frequency range. The system including heat dissipation features, allowing the system to operate effectively in elevated-temperature environments and to transfer power at higher levels and/or greater distances than a typical power-transfer system. The system also may include design features to withstand mechanical shocks, stresses, and impacts for use in a rugged environment. The system may include features to reduce electromagnetic interference (EMI) and/or specially shaped components with magnetic/ferrimagnetic properties that enhance performance. Other potential features include power conditioning by combining, within one circuit or one board, multiple elements that protect against excessive current, over-voltage, and/or reverse voltage.
H02J 50/40 - Circuit arrangements or systems for wireless supply or distribution of electric power using two or more transmitting or receiving devices
H02J 50/10 - Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
H02J 50/90 - Circuit arrangements or systems for wireless supply or distribution of electric power involving detection or optimisation of position, e.g. alignment
7.
Stability Enhancements for Large Area Wireless Power Transfer Systems
A wireless power transmission system includes an input stabilization system, a controller, an amplifier, and an antenna. The input power stabilization system includes a proportional integral (PI) controller and is configured to receive an input power from an external power source and generate a stabilized direct current (DC) power based on a desired input power. The controller is configured to generate a driving signal for alternating current (AC) wireless signals, the AC wireless signals including wireless power signals. The amplifier is configured to (i) receive the stabilized DC power and antenna driving signals, (ii) invert the stabilized DC power based on the driving signals to generate alternating current (AC) wireless signals. The antenna is configured to transmit the AC wireless signals when driven by the amplifier.
A method of operating a wireless transmission system includes (i) initiating a discovery mode for the wireless transmission system, (ii) determining if at least one other system is couplable with the wireless transmission system during the discovery mode, (iii) if at least one other system is couplable with the wireless transmission system during the discovery mode, operating in a power transfer mode, (iv) during the power transfer mode, determining if a load associated with the at least one other system is in an end-of-charge state, and (v) if the load associated with the at least one other system is in the end-of-charge state, operating in an end-of-charge mode.
H02J 50/12 - Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling of the resonant type
H02J 50/80 - Circuit arrangements or systems for wireless supply or distribution of electric power involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
9.
Testing Device For Electronic Devices With In-Band Virtualized Wired Communications
A testing device for testing electronic devices includes a test controller and a wireless power transmission system. The test controller is configured to generate testing signals for transmission to at least one of the plurality of electronic devices and receive testing data, in response to the testing signals. The wireless power transmission system is configured to receive the testing signal from the test controller, generate a power signal and a first asynchronous serial data signal in accordance with a wireless power and data transfer protocol, the first asynchronous serial data signal based on the testing signals, decode the power signal to extract a second data signal compliant with the wireless power and data transfer protocol, and decode the second data signal compliant with the wireless power and data transfer protocol to extract a second asynchronous serial data signal, the second asynchronous serial data signal based on the testing data.
H04B 5/79 - Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes for data transfer in combination with power transfer
A wireless power transmission system includes a wireless power transmitter, a wireless power transfer circuit electrically connectable to the at least one wireless power transmitter, and a transmitter controller. The transmitter controller is configured to perform an initial foreign object detection prior to any transmission of wireless power, the initial foreign object detection for detecting presence of a foreign object within a charge volume, the initial foreign object detection determining an initial quality factor (Q). The controller is further configured to begin wireless power transfer negotiations with one of the one or more wireless power receivers, if the initial Q has a value in a range indicating that an object in the charge volume is a wireless power receiver, and perform continuous foreign object detection, if the initial Q has the value in the range indicating that an object in the charge volume is a wireless power receiver.
H02J 50/60 - Circuit arrangements or systems for wireless supply or distribution of electric power responsive to the presence of foreign objects, e.g. detection of living beings
H02J 50/00 - Circuit arrangements or systems for wireless supply or distribution of electric power
H02J 50/10 - Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
H02J 50/12 - Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling of the resonant type
H02J 50/40 - Circuit arrangements or systems for wireless supply or distribution of electric power using two or more transmitting or receiving devices
H02J 50/80 - Circuit arrangements or systems for wireless supply or distribution of electric power involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
11.
Inductor Coil Structures to Influence Wireless Transmission Performance
Various embodiments of inductor coils, antennas, and transmission bases configured for wireless electrical energy transmission are provided. These embodiments are configured to wirelessly transmit or receive electrical energy or data via near field magnetic coupling. The embodiments of inductor coils comprise a figure eight configuration that improve efficiency of wireless transmission efficiency. The embodiments of the transmission base are configured with at least one transmitting antenna and a transmitting electrical circuit positioned within the transmission base. The transmission base is configured so that at least one electronic device can be wirelessly electrically charged or powered by positioning the at least one device in contact with or adjacent to the transmission base.
H04B 5/79 - Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes for data transfer in combination with power transfer
H02J 7/00 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
H02J 50/00 - Circuit arrangements or systems for wireless supply or distribution of electric power
H02J 50/12 - Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling of the resonant type
H02J 50/23 - Circuit arrangements or systems for wireless supply or distribution of electric power using microwaves or radio frequency waves characterised by the type of transmitting antennas, e.g. directional array antennas or Yagi antennas
H02J 50/40 - Circuit arrangements or systems for wireless supply or distribution of electric power using two or more transmitting or receiving devices
H02J 50/70 - Circuit arrangements or systems for wireless supply or distribution of electric power involving the reduction of electric, magnetic or electromagnetic leakage fields
H04B 5/72 - Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes for local intradevice communication
12.
Wireless power transfer system with data versus power priority optimization
A wireless power transmitter is configured to (i) determine a coupling between the wireless power transmitter and a given wireless power receiver, (ii) receive, from the given wireless power receiver, a communication indicating a selected power mode for wireless transmission, wherein the selected power mode is selected based on the coupling between the wireless power transmitter and the given wireless power receiver, and (iii) in response to receiving the communication from the given wireless power receiver, cause the wireless power transmitter to begin operating in accordance with the selected power mode.
H02J 50/12 - Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling of the resonant type
H02J 50/20 - Circuit arrangements or systems for wireless supply or distribution of electric power using microwaves or radio frequency waves
H02J 50/80 - Circuit arrangements or systems for wireless supply or distribution of electric power involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
H04B 5/79 - Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes for data transfer in combination with power transfer
13.
Wireless Power Transfer Systems for Kitchen Appliances
A kitchen appliance is disclosed includes a first electrical component, a second electrical component, and a wireless power receiver system. The wireless power receiver system includes a first receiver antenna configured to couple with a first transmission antenna and receive virtual AC power signals from the first transmission antenna. A second receiver antenna is configured to couple with a second transmission antenna and receive virtual DC power signals from the second transmitter antenna. A first receiver power conditioning system is configured to receive the virtual AC power signals, convert the virtual AC power signals to AC received power signals, and provide the AC received power signals to power the first electrical component. The second receiver power conditioning system configured to receive the virtual DC power signals, convert the virtual DC power signals to DC received power signals, and provide the DC received power signals to power the second electrical component.
A47J 47/01 - Kitchen containers, stands or the like, not provided for in other groups of this subclassCutting-boards, e.g. for bread with dispensing devices
H02J 50/20 - Circuit arrangements or systems for wireless supply or distribution of electric power using microwaves or radio frequency waves
H02J 50/60 - Circuit arrangements or systems for wireless supply or distribution of electric power responsive to the presence of foreign objects, e.g. detection of living beings
A method for providing an electronic device includes manufacturing the electronic device at a manufacturing location, wherein manufacturing the electronic device includes connecting a wireless receiver system to the electronic device. The method further includes packaging the electronic device at a packaging location. The method further includes wirelessly transmitting data to the electronic device at a data transmission site, wherein wirelessly transmitting the data to the electronic device is performed by transferring data via near field magnetic induction utilizing a wireless transmission system and transmitting data via an out of band communications system, the wireless transmission system configured to magnetically connect with the wireless receiver system associated with the electronic device.
H04B 5/72 - Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes for local intradevice communication
A wireless power transmitter is configured to (i) detect a presence of a wireless power receiver that is couplable with the wireless power transmitter, (ii) after detecting the presence of the wireless power receiver, initiate wireless power transfer with the wireless power receiver, (iii) detect that a given amount of time has elapsed since a prior reference point, (iv) in response to detecting that the given amount of time has elapsed since the prior reference point, (a) pause the wireless power transfer with the wireless power receiver for a temporary period of time and (b) after the wireless power transfer is paused, perform a foreign object detection (FOD) process during the temporary period of time, and (v) after the FOD process is completed, resume the wireless power transfer with the wireless power receiver.
H02J 50/12 - Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling of the resonant type
H02J 50/40 - Circuit arrangements or systems for wireless supply or distribution of electric power using two or more transmitting or receiving devices
H02J 50/60 - Circuit arrangements or systems for wireless supply or distribution of electric power responsive to the presence of foreign objects, e.g. detection of living beings
H02J 50/80 - Circuit arrangements or systems for wireless supply or distribution of electric power involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
16.
Wireless Power Transfer With In-Band Virtualized Wired Communications
Wireless power transfer systems, disclosed, include a wireless power transmission system and a wireless power receiver system. The wireless power transmission system includes a transmitter antenna configured to couple with a receiver antenna to transmit alternating current (AC) wireless signals to the receiver antenna. Antenna coupling may be inductive and may operate in conformance to a wireless power and data transfer protocol. A transmission controller drives the transmitter antenna at an operating frequency, and either the wireless power transmission system or the wireless power receiver system may damp the wireless power transmission to create a data signal containing a serial asynchronous data signal.
H04B 5/79 - Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes for data transfer in combination with power transfer
H02J 50/12 - Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling of the resonant type
H02J 50/20 - Circuit arrangements or systems for wireless supply or distribution of electric power using microwaves or radio frequency waves
H02J 50/40 - Circuit arrangements or systems for wireless supply or distribution of electric power using two or more transmitting or receiving devices
H02J 50/80 - Circuit arrangements or systems for wireless supply or distribution of electric power involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
17.
WIRELESS POWER TRANSMITTERS UTILIZING REPEATER TRANSMITTER ANTENNAS
A modular wireless power transfer system includes a first wireless transmission system and one or more secondary wireless transmission systems. The first wireless transmission system is configured to receive input power from an input power source, generate AC wireless signals, and couple with one or more other antennas. Each of the one or more secondary wireless transmission systems includes a secondary transmission antenna, the secondary transmission antenna configured to couple with one or more of another secondary transmission antenna, the first transmission antenna, one or more receiver antennas, or combinations thereof. The one or more secondary wireless transmission systems are configured to receive the AC wireless signals from one or more of the first wireless transmission system, another secondary wireless transmission system, or combinations thereof and repeat the AC wireless signals to one or more of the secondary transmission antennas, the one or more receiver antennas, or combinations thereof.
H02J 50/50 - Circuit arrangements or systems for wireless supply or distribution of electric power using additional energy repeaters between transmitting devices and receiving devices
H02J 50/12 - Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling of the resonant type
H02J 50/40 - Circuit arrangements or systems for wireless supply or distribution of electric power using two or more transmitting or receiving devices
18.
Systems and Methods for Dynamically Tuning a Wireless Power Transfer System
A wireless power transmission system includes a voltage regulator, an inverter, a capacitor circuit, an antenna, and a controller. The inverter receives a first alternating current (AC) signal that has a configurable frequency and produces a configurable supply voltage. The inverter produces a second AC signal based on the first AC signal and the configurable supply voltage. The second AC signal has the configurable frequency and a configurable power level that corresponds to the configurable supply voltage. The capacitor circuit includes two or more capacitors and is configured to, based on a configuration state of the bank of two or more capacitors, tune the second AC signal with the bank of two or more capacitors and thereby produce a third AC signal. The controller is configured to define the configurable frequency, define the level of the configurable supply voltage, and define the configuration state.
H02J 50/20 - Circuit arrangements or systems for wireless supply or distribution of electric power using microwaves or radio frequency waves
H02J 50/12 - Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling of the resonant type
H02J 50/80 - Circuit arrangements or systems for wireless supply or distribution of electric power involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
19.
Heat Diffuser In Wrist Worn Wireless Power And Data System
A rechargeable wearable electronic device includes a wireless power receiver system, a device portion, and a band portion. The wireless power receiver system includes a receiver antenna, a power conditioning system, and a controller. The device portion includes a device housing containing an electronic circuitry module, which includes the wireless power receiver system and a rechargeable power source, wherein the circuitry module generates heat during wireless charging of the rechargeable power source. The band portion is for attaching the wearable electronic device to a user appendage, the band portion having a heat spreading layer of a thermally conductive material, the heat spreading layer having an inner portion within the device housing in thermal contact with the electronic circuitry module, to absorb heat from the electronic circuitry module and spread the absorbed heat to the remainder of the heat spreading layer.
H04B 5/79 - Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes for data transfer in combination with power transfer
H02J 50/12 - Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling of the resonant type
H02J 50/40 - Circuit arrangements or systems for wireless supply or distribution of electric power using two or more transmitting or receiving devices
H04B 5/72 - Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes for local intradevice communication
Various embodiments of a wireless connector system are described. The system has a transmitter module and a receiver module that are configured to wirelessly transmit electrical energy and/or data via near field magnetic coupling. The wireless connector system is designed to increase the amount of wirelessly transmitted electrical power over a greater separation distance. The system is configured with various sensing circuits that alert the system to the presence of the receiver module to begin transfer of electrical power as well as undesirable objects and increased temperature that could interfere with the operation of the system. The wireless connector system is a relatively small footprint that is designed to be surface mounted.
H01Q 7/00 - Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop
H01R 12/72 - Coupling devices for rigid printing circuits or like structures coupling with the edge of the rigid printed circuits or like structures
H01R 12/73 - Coupling devices for rigid printing circuits or like structures coupling with the edge of the rigid printed circuits or like structures connecting to other rigid printed circuits or like structures
H02J 50/10 - Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
H02J 50/60 - Circuit arrangements or systems for wireless supply or distribution of electric power responsive to the presence of foreign objects, e.g. detection of living beings
H04B 5/72 - Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes for local intradevice communication
H04B 5/75 - Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes for isolation purposes
H04B 5/79 - Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes for data transfer in combination with power transfer
A method for operating a wireless power transfer system includes determining a driving signal for transfer of the AC wireless signals, the driving signals based on an operating frequency for the AC wireless signals, a power requirement for the wireless power signals, data contained in the wireless data signals, and one or more thermal mitigation features. Each of the one or more thermal mitigation features are configured to reduce temperature of at least one surface or volume of the wireless transmission system or the wireless receiver system. The method further includes providing the driving signal to an amplifier of the wireless power transmission system and driving a transmitter antenna of the wireless power transmission system, by the amplifier, based on the driving signal.
H02J 50/80 - Circuit arrangements or systems for wireless supply or distribution of electric power involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
H02J 7/00 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
H02J 50/10 - Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
Various embodiments of a multi-mode antenna are described. The antenna is preferably constructed having a first inductor coil and a second inductor coil. A plurality of shielding materials are positioned throughout the antenna to minimize interference of the magnetic fields that emanate from the coils from surrounding materials. The antenna comprises a coil control circuit having at least one of an electric filter and an electrical switch configured to modify the electrical impedance of either or both the first and second coils.
H01Q 7/06 - Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop with core of ferromagnetic material
H01Q 1/52 - Means for reducing coupling between antennas Means for reducing coupling between an antenna and another structure
H04B 5/79 - Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes for data transfer in combination with power transfer
23.
Timing Verification in Precision Power Level Control Systems for Wireless Power Transmission
A power transmitter includes a control and communications unit, an inverter circuit, a coil, and a shielding. The control and communications unit is configured to provide power control signals to control a power level of a power signal configured for transmission to a power receiver, provide a power timing request to an external power supply, and determine if the timing of the external power supply is compliant if the power timing request is met within a timing interval. The coil is configured to transmit the power signal to a power receiver, the coil formed of wound Litz wire and including at least one layer, the coil defining, at least, a top face. The shielding comprises a ferrite core and defining a cavity, the cavity configured such that the ferrite core substantially surrounds all but the top face of the coil.
H02J 50/80 - Circuit arrangements or systems for wireless supply or distribution of electric power involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
H02J 50/00 - Circuit arrangements or systems for wireless supply or distribution of electric power
H02J 50/12 - Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling of the resonant type
H02J 50/90 - Circuit arrangements or systems for wireless supply or distribution of electric power involving detection or optimisation of position, e.g. alignment
H04B 5/79 - Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes for data transfer in combination with power transfer
24.
Operating Frequency Based Power Level Altering In Extended Range Wireless Power Transmitters
A power transmitter for wireless power transfer includes a control and communications unit configured to provide power control signals to control a power level of a power signal configured for transmission to a power receiver and including a pulse width modulation (PWM) signal generator for determining and selecting the operating frequency from the operating frequency range. The power transmitter further includes an inverter circuit configured to receive a direct current (DC) power and convert the input power to a power signal, coil configured to transmit the power signal to a power receiver, the coil formed of wound Litz wire and including at least one layer, the coil defining, at least, a top face, and a shielding comprising a ferrite core and defining a cavity, the cavity configured such that the ferrite core substantially surrounds all but the top face of the coil.
H02J 50/80 - Circuit arrangements or systems for wireless supply or distribution of electric power involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
H02J 50/12 - Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling of the resonant type
H02J 50/50 - Circuit arrangements or systems for wireless supply or distribution of electric power using additional energy repeaters between transmitting devices and receiving devices
H02J 50/70 - Circuit arrangements or systems for wireless supply or distribution of electric power involving the reduction of electric, magnetic or electromagnetic leakage fields
25.
Wireless Power Transmission Systems and Methods With Selective Signal Damping at Periodic Active Mode Windows
A method for operating a wireless power transmission system includes providing a driving signal for driving a transmission antenna of the wireless power transmission system, the driving signal based, at least, on an operating frequency for the wireless power transmission system. The method further includes inverting, by the at least one transistor, a direct current (DC) input power signal to generate an AC wireless signal at the operating frequency, based on provided driving signals. The method includes receiving, at a damping circuit, damping signals configured for switching the damping transistor to one of an active mode and an inactive mode to control signal damping, wherein the damping signals switch to the active mode periodically. The method further includes selectively damping, by the damping circuit, the AC wireless signals, during transmission of the wireless data signals if the damping signals set the damping circuit to the active mode.
H04B 5/79 - Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes for data transfer in combination with power transfer
H02J 50/12 - Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling of the resonant type
H02J 50/20 - Circuit arrangements or systems for wireless supply or distribution of electric power using microwaves or radio frequency waves
H02J 50/80 - Circuit arrangements or systems for wireless supply or distribution of electric power involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
H04B 5/72 - Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes for local intradevice communication
26.
Method of Operating a Wireless Electrical Energy Transmission System
A wireless electrical energy transmission system is provided. The system comprises a wireless transmission base configured to wirelessly transmit electrical energy or data via near field magnetic coupling to a receiving antenna configured within an electronic device. The wireless electrical energy transmission system is configured with at least one transmitting antenna and a transmitting electrical circuit positioned within the transmission base. The transmission base is configured so that at least one electronic device can be wirelessly electrically charged or powered by positioning the at least one device external and adjacent to the transmission base.
H01Q 1/08 - Means for collapsing antennas or parts thereof
H02J 50/05 - Circuit arrangements or systems for wireless supply or distribution of electric power using capacitive coupling
H02J 50/10 - Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
H02J 50/40 - Circuit arrangements or systems for wireless supply or distribution of electric power using two or more transmitting or receiving devices
H02J 50/50 - Circuit arrangements or systems for wireless supply or distribution of electric power using additional energy repeaters between transmitting devices and receiving devices
H02J 50/70 - Circuit arrangements or systems for wireless supply or distribution of electric power involving the reduction of electric, magnetic or electromagnetic leakage fields
H02J 50/80 - Circuit arrangements or systems for wireless supply or distribution of electric power involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
H04B 5/72 - Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes for local intradevice communication
H04B 5/79 - Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes for data transfer in combination with power transfer
H05K 9/00 - Screening of apparatus or components against electric or magnetic fields
27.
Wirelessly Powered Battery Pack For Retrofit In Legacy Devices
A device charging system includes a legacy battery-powered mobile electronic device configured for wired-only charging and a wireless charging enabled battery pack. The wireless charging enabled battery pack may contain one or more battery cells as well as a power management integrated circuit (IC) configured to manage charging of the battery cells. The wireless charging enabled battery pack also contains a wireless power module to receive power wirelessly from a WPT (wireless power transfer) power source outside of the legacy device. In keeping with embodiments of the disclosure, a pack microcontroller in the battery pack interfaces to the legacy device, presenting an interface consistent with a wired-only charged battery pack.
H02J 7/02 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from AC mains by converters
H02J 7/00 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
28.
Systems And Methods For Wireless Power And Data Transfer Utilizing Multiple Antenna Receivers
A wearable device includes (i) a first antenna that is operable to wirelessly receive power, (ii) a second antenna that is operable to wirelessly receive data, (iii) a battery, (iv) a power conditioning system that is connected between the first antenna and the battery, (v) a data communications system, and (vi) a switch that is operable to selectively couple or decouple the second antenna to or from the data communications system. The wearable device is configured to (i) detect a trigger event for decoupling the second antenna from the data communications system and, (ii) in response to detecting the trigger event, control the switch to decouple the second antenna from the data communications system.
H02J 50/80 - Circuit arrangements or systems for wireless supply or distribution of electric power involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
H02J 50/10 - Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
H04B 5/72 - Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes for local intradevice communication
H04B 5/79 - Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes for data transfer in combination with power transfer
29.
Wireless Power Transmitter for High Fidelity Communications and High Power Transfer
Wireless power transfer systems, disclosed, include one or more circuits to facilitate high power transfer at high frequencies. Such wireless power transfer systems include a damping circuit, configured to dampen a wireless power signal such that communications fidelity is upheld at high power. The damping circuit includes at least a damping transistor that is configured to receive, from the transmitter controller, a damping signal for switching the transistor to control damping during transmission of the wireless data signals. Utilizing such systems enables wireless power transfer at high frequency, such as 13.56 MHz, at voltages over 1 Watt, while maintaining fidelity of in-band communications associated with the higher power wireless power signal.
H02J 50/80 - Circuit arrangements or systems for wireless supply or distribution of electric power involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
H02J 50/12 - Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling of the resonant type
30.
Wireless Power Receiver With Data Transceiver Capabilities For Communication With Passive Devices
A wireless power receiver system utilizes near-field magnetic induction (NFMI) to receive wireless power signals and receive or transmit wireless data signals in-band of a carrier signal. The wireless power receiver system includes an antenna, a power conditioning system, and a controller. The antenna is configured to receive wireless power signals and transmit polling signals. The power conditioning system is configured to receive the wireless power signals and convert the wireless power signals to electrical energy for powering a load associated with the wireless power receiver system. The controller includes a driver, at least one first machine-readable medium, and program instructions stored on the at least one first non-transitory machine-readable medium that are executable by the controller such that the controller is configured to provide polling driving signals to the driver for generating the polling signals.
H02J 50/23 - Circuit arrangements or systems for wireless supply or distribution of electric power using microwaves or radio frequency waves characterised by the type of transmitting antennas, e.g. directional array antennas or Yagi antennas
H02J 50/10 - Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
H02J 50/27 - Circuit arrangements or systems for wireless supply or distribution of electric power using microwaves or radio frequency waves characterised by the type of receiving antennas, e.g. rectennas
H02J 50/80 - Circuit arrangements or systems for wireless supply or distribution of electric power involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
H04B 5/79 - Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes for data transfer in combination with power transfer
31.
Method of Fabricating an Antenna Having a Substrate Configured to Facilitate Through-Metal Energy Transfer Via Near Field Magnetic Coupling
An electrically conductive material configured having at least one opening of various unlimited geometries extending through its thickness is provided. The opening is designed to modify eddy currents that form within the surface of the material from interaction with magnetic fields that allow for wireless energy transfer therethrough. The opening may be configured as a cut-out, a slit or combination thereof that extends through the thickness of the electrically conductive material. The electrically conductive material is configured with the cut-out and/or slit pattern positioned adjacent to an antenna configured to receive or transmit electrical energy wirelessly through near-field magnetic coupling (NFMC). A magnetic field shielding material, such as a ferrite, may also be positioned adjacent to the antenna. Such magnetic shielding materials may be used to strategically block eddy currents from electrical components and circuitry located within a device.
H02J 50/12 - Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling of the resonant type
H01F 27/34 - Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
H01F 27/36 - Electric or magnetic shields or screens
H01Q 1/22 - SupportsMounting means by structural association with other equipment or articles
H01Q 1/24 - SupportsMounting means by structural association with other equipment or articles with receiving set
H01Q 1/36 - Structural form of radiating elements, e.g. cone, spiral, umbrella
H01Q 1/38 - Structural form of radiating elements, e.g. cone, spiral, umbrella formed by a conductive layer on an insulating support
H01Q 7/00 - Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop
H02J 7/00 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
H02J 50/70 - Circuit arrangements or systems for wireless supply or distribution of electric power involving the reduction of electric, magnetic or electromagnetic leakage fields
H04B 5/72 - Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes for local intradevice communication
H04B 5/79 - Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes for data transfer in combination with power transfer
H05K 5/02 - Casings, cabinets or drawers for electric apparatus Details
H05K 9/00 - Screening of apparatus or components against electric or magnetic fields
32.
Device Having a Multimode Antenna With Variable Width of Conductive Wire
A method of providing a single structure multiple mode antenna is described. The antenna is preferably constructed having a first inductor coil that is electrically connected in series with a second inductor coil. The antenna is constructed having a plurality of electrical connections positioned along the first and second inductor coils. A plurality of terminals is connected to the electrical connections that facilitate numerous electrical connections and enables the antenna to be selectively tuned to various frequencies and frequency bands.
H01F 41/04 - Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformersApparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils or magnets for manufacturing coils
H01F 21/02 - Variable inductances or transformers of the signal type continuously variable, e.g. variometers
H01F 21/12 - Variable inductances or transformers of the signal type discontinuously variable, e.g. tapped
H01F 29/02 - Variable transformers or inductances not covered by group with tappings on coil or windingVariable transformers or inductances not covered by group with provision for rearrangement or interconnection of windings
H01Q 7/00 - Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop
H01Q 7/06 - Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop with core of ferromagnetic material
H02J 5/00 - Circuit arrangements for transfer of electric power between ac networks and dc networks
H02J 7/00 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
H02J 50/12 - Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling of the resonant type
H02J 50/80 - Circuit arrangements or systems for wireless supply or distribution of electric power involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
33.
Wireless Power And Data Transfer System With Out Of Band Communications Hand Off
A method of operating a power and data transfer system includes determining, by a wireless transmission system, presence of a wireless receiver system. The method further includes starting wireless power and data transfer via the wireless transmission system, if presence of the wireless receiver system is detected. The method further includes determining if power at a load associated with the wireless receiver system exceeds a threshold for out of band communications. The method further includes, if the power at the load exceeds the threshold for out of band communications, handing over wireless data transfer to an out of band communications system that is in operative communication with the wireless transmission system.
H02J 50/10 - Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
H02J 50/23 - Circuit arrangements or systems for wireless supply or distribution of electric power using microwaves or radio frequency waves characterised by the type of transmitting antennas, e.g. directional array antennas or Yagi antennas
H02J 50/80 - Circuit arrangements or systems for wireless supply or distribution of electric power involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
34.
Systems And Methods For Receiver Beaconing In Wireless Power Systems
A wireless power transmitter is configured to (i) detect a presence of an object and (ii) after detecting presence of the object, carrying out a first beaconing process for detecting a wireless power receiver. Based on the first beaconing process, the wireless power transmitter is configured to (iii) detect a given wireless power receiver, (iv) determine a coupling level between the wireless power transmitter and the given wireless power receiver, and (v) thereafter configure the voltage level of the DC voltage signal that is provided as input to the inverter and thereby configuring a power level of the wireless power output produced by the transmission antenna in accordance with the determined coupling level.
H02J 50/80 - Circuit arrangements or systems for wireless supply or distribution of electric power involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
H02J 50/00 - Circuit arrangements or systems for wireless supply or distribution of electric power
H02J 50/12 - Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling of the resonant type
H02J 50/60 - Circuit arrangements or systems for wireless supply or distribution of electric power responsive to the presence of foreign objects, e.g. detection of living beings
H04B 5/00 - Near-field transmission systems, e.g. inductive or capacitive transmission systems
H04B 5/79 - Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes for data transfer in combination with power transfer
35.
Wireless Power Transfer System For Listening Devices
A wireless power transfer system is provided for mobile charging of one or more listening devices having wireless power receiving antennas couplable to a wireless power transfer antenna. The system includes a case configured for attachment to a mobile electronic device having a wireless power transfer antenna. The case includes a hollow for each of the listening devices, with each hollow being shaped and located to hold a respective listening device in a coupling position with the wireless power transfer antenna of the mobile electronic device when the case is mounted to the mobile electronic device. An attachment may be used to mount the case to the mobile electronic device.
H02J 7/00 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
H02J 50/20 - Circuit arrangements or systems for wireless supply or distribution of electric power using microwaves or radio frequency waves
H02J 50/40 - Circuit arrangements or systems for wireless supply or distribution of electric power using two or more transmitting or receiving devices
H04B 5/79 - Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes for data transfer in combination with power transfer
A wireless power transfer system is provided for mobile charging of one or more listening devices. A case configured for attachment to a mobile electronic device having a wireless power transfer antenna includes a first plate and a second plate expandably connected to the first plate, such that when expanded, the first plate and a second plate define a hollow for each of the listening devices. Each hollow is shaped and located to hold a listening device in a coupling position with the wireless power transfer antenna of the mobile electronic device when the case is mounted to the mobile electronic device. An attachment may be used to mount the case to the mobile electronic device.
A power transmitter for wireless power transfer includes a control and communications unit, an inverter circuit, at least one coil, a shielding, a housing, and a removable front plate. The housing is configured to house, at least in part, one or more of the control and communications unit, the invertor circuit, the at least one coil, the shielding, or combinations thereof. The removable front plate is configured to mechanically connect to the housing, the removable front plate including at least one magnet, the at least one magnet configured to attract a receiver magnet when a power receiver is proximate to the removable front plate.
H02J 50/12 - Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling of the resonant type
H02J 50/60 - Circuit arrangements or systems for wireless supply or distribution of electric power responsive to the presence of foreign objects, e.g. detection of living beings
H02J 50/80 - Circuit arrangements or systems for wireless supply or distribution of electric power involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
H02J 50/90 - Circuit arrangements or systems for wireless supply or distribution of electric power involving detection or optimisation of position, e.g. alignment
H04B 5/79 - Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes for data transfer in combination with power transfer
38.
Operating frequency based power level altering in extended range wireless power transmitters
A wireless power transmitter is configured to (i) send, to an external power supply, a request that the external power supply change a configurable voltage level of a supply voltage signal for the wireless power transmitter from a first voltage level to a second voltage level, (ii) after detecting that the external power supply has changed the configurable voltage level of the supply voltage signal from the first voltage level to the second voltage level, causing a configurable frequency of a drive signal for the wireless power transmitter to be changed from a first frequency to a second frequency, (iii) produce a wireless power signal for receipt by a wireless power receiver in accordance with an alternating current signal that (a) has the second frequency and the supply voltage signal having the second voltage level and (b) is produced by a power conditioning system of the wireless power transmitter.
H02J 50/80 - Circuit arrangements or systems for wireless supply or distribution of electric power involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
H02J 50/12 - Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling of the resonant type
H02J 50/50 - Circuit arrangements or systems for wireless supply or distribution of electric power using additional energy repeaters between transmitting devices and receiving devices
H02J 50/70 - Circuit arrangements or systems for wireless supply or distribution of electric power involving the reduction of electric, magnetic or electromagnetic leakage fields
39.
Slotted communications in virtual AC power signal transfer with variable slot width
A wireless power transmission system includes a first antenna, a second antenna, a controller, a first power conditioning system, and a second power conditioning system. The controller is configured to determine a first driving signal for driving the first antenna based on a first operating frequency, a virtual AC power frequency, a variable slot length, and slot timing, and determine a second driving signal for driving the second antenna based on a second operating frequency, the slot length, and the slot timing. The first power conditioning system is configured to receive the first driving signal to generate the virtual AC power signals at the first operating frequency, the virtual AC power signals having peak voltages rising and falling based on the virtual AC power frequency. The second power conditioning system is configured to receive the second driving signal to generate the virtual DC power signals at the second operating frequency.
H02J 50/10 - Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
H02J 50/40 - Circuit arrangements or systems for wireless supply or distribution of electric power using two or more transmitting or receiving devices
H02J 50/60 - Circuit arrangements or systems for wireless supply or distribution of electric power responsive to the presence of foreign objects, e.g. detection of living beings
H02J 50/80 - Circuit arrangements or systems for wireless supply or distribution of electric power involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
40.
Area-apportioned wireless power antenna for maximized charging volume
An antenna for wireless power transfer includes a first antenna portion and a second antenna portion. The first antenna portion includes a first antenna terminal, a second antenna terminal, at least one first inner turn, at least one first outer turn, and a first wire crossover electrically connecting the at least one first inner turn with the at least one second outer turn. The antenna further includes a second antenna portion including a third antenna terminal, a fourth antenna terminal, at least one second inner turn, at least one second outer turn, and a second wire crossover electrically connecting the at least one second inner turn with the at least one second outer turn. The second antenna terminal is in electrical connection with the third antenna terminal and the first antenna terminal and fourth antenna terminal are configured for electrical connection with a transmitter circuit.
H02J 50/23 - Circuit arrangements or systems for wireless supply or distribution of electric power using microwaves or radio frequency waves characterised by the type of transmitting antennas, e.g. directional array antennas or Yagi antennas
H01Q 7/00 - Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop
H02J 50/40 - Circuit arrangements or systems for wireless supply or distribution of electric power using two or more transmitting or receiving devices
41.
Wireless power transmission system utilizing multiple transmission antennas with common electronics
A wireless power transmission system includes, at least, a first transmission antenna and a second transmission antenna, both in electrical connection with a common power conditioning system of the system. The first transmission antenna transmits output power and includes a first pole and a second pole, while the second transmission antenna also transmits the output power and includes a third pole and a fourth pole. The first and second transmission antennas are in electrical connection with the power conditioning system via at least one of the first pole and the second pole and at least one of the third pole and the fourth pole. Further, at least one of the first pole and the second pole is in electrical connection with at least one of the third pole and the fourth pole.
H02J 50/12 - Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling of the resonant type
H02J 50/40 - Circuit arrangements or systems for wireless supply or distribution of electric power using two or more transmitting or receiving devices
H02J 50/80 - Circuit arrangements or systems for wireless supply or distribution of electric power involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
A system for wireless power transfer includes a wireless transmission system and a wireless receiver system. The wireless transmission system includes a transmission antenna configured to transmit one or both of wireless power signals and wireless data signals within a large charge area, the large charge area having a length of in a range of 50 millimeters (mm) to 300 mm and a width in a range of 150 to 500 mm. The wireless receiver system includes a receiver antenna, the receiver antenna including a plurality of receiver coils, each of the plurality of receiver coils configured to receive one or both of the wireless power signals and the wireless data signals within the large charge area.
H02J 50/23 - Circuit arrangements or systems for wireless supply or distribution of electric power using microwaves or radio frequency waves characterised by the type of transmitting antennas, e.g. directional array antennas or Yagi antennas
G06F 3/0354 - Pointing devices displaced or positioned by the userAccessories therefor with detection of 2D relative movements between the device, or an operating part thereof, and a plane or surface, e.g. 2D mice, trackballs, pens or pucks
G06F 3/039 - Accessories therefor, e.g. mouse pads
H02J 50/12 - Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling of the resonant type
H02J 50/27 - Circuit arrangements or systems for wireless supply or distribution of electric power using microwaves or radio frequency waves characterised by the type of receiving antennas, e.g. rectennas
H02J 50/50 - Circuit arrangements or systems for wireless supply or distribution of electric power using additional energy repeaters between transmitting devices and receiving devices
H02J 50/80 - Circuit arrangements or systems for wireless supply or distribution of electric power involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
43.
Systems and methods for wireless power and data transfer utilizing multiple antenna receivers
A wireless receiver system, configured to receive both electrical data signals and electrical energy, includes a first receiver antenna, configured to receive one or both of the electrical data signals and the electrical energy, and a power conditioning system in electrical connection with the first receiver antenna, configured to receive electrical energy from the first receiver antenna. The wireless receiver system further includes a second receiver antenna configured to receive the electrical data signals and a receiver controller operatively associated with the first receiver antenna and the second receiver antenna and configured to determine switching instructions. The wireless receiver system further includes a switch operatively associated with the receiver controller and configured to switch receiving operations between the first and second receiver antennas based, at least in part, on the switching instructions.
H02J 50/80 - Circuit arrangements or systems for wireless supply or distribution of electric power involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
H02J 50/10 - Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
H04B 5/72 - Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes for local intradevice communication
H04B 5/79 - Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes for data transfer in combination with power transfer
44.
Power capability detection with verification load in power level control systems for wireless power transmission
A power transmitter for wireless power transfer includes a verification load, a control and communications unit, an inverter circuit, a coil, and a shielding. The control and communications unit is configured to provide power control signals to control a power level of a power signal configured for transmission to a power receiver, provide a power request to an external power supply, determine if a power signal at the verification load is compliant with the power request, and, if the power signal at the verification load is compliant with the power request, continue to operate for wireless power transmission. The coil is configured to transmit the power signal to a power receiver. The shielding comprises a ferrite core.
H02J 50/80 - Circuit arrangements or systems for wireless supply or distribution of electric power involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
H02J 50/12 - Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling of the resonant type
H02J 50/70 - Circuit arrangements or systems for wireless supply or distribution of electric power involving the reduction of electric, magnetic or electromagnetic leakage fields
45.
False notification suppression in wireless power transfer system
A power transmitter for wireless power transfer includes a sensing system, a feedback mechanism and a control and communications unit includes a controller configured to receive object detection data from the sensing system, if a power receiver is detected, reset an alert timer, if the power receiver has been detected and a disconnect is detected, determine if an alert timer value is greater than an alert threshold, if a disconnect is detected and the alert timer value is greater than the alert threshold, instruct the feedback mechanism to output an alert. The power transmitter further includes an inverter circuit configured to receive a direct current (DC) power and convert the input power to a power signal and a coil configured to transmit the power signal to a power receiver, the coil formed of wound Litz wire and including at least one layer, the coil defining, at least, a top face.
H02J 50/12 - Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling of the resonant type
H02J 50/60 - Circuit arrangements or systems for wireless supply or distribution of electric power responsive to the presence of foreign objects, e.g. detection of living beings
H02J 50/70 - Circuit arrangements or systems for wireless supply or distribution of electric power involving the reduction of electric, magnetic or electromagnetic leakage fields
H02J 50/80 - Circuit arrangements or systems for wireless supply or distribution of electric power involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
H02J 50/90 - Circuit arrangements or systems for wireless supply or distribution of electric power involving detection or optimisation of position, e.g. alignment
A power transmitter for wireless power transfer includes a control and communications unit, an inverter circuit, a coil, and a shielding. The control and communications unit is configured to provide power control signals to control a power level of a power signal configured for transmission to a power receiver, provide a power request to an external power supply, determine if a power signal at the coil is compliant with the power request, and, if the power signal at the coil is compliant with the power request, continue to operate for wireless power transmission. The coil is configured to transmit the power signal to a power receiver. The shielding comprises a ferrite core.
H02J 50/80 - Circuit arrangements or systems for wireless supply or distribution of electric power involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
H02J 50/12 - Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling of the resonant type
H02J 50/70 - Circuit arrangements or systems for wireless supply or distribution of electric power involving the reduction of electric, magnetic or electromagnetic leakage fields
47.
Wireless power transfer systems for kitchen appliances
A kitchen appliance is disclosed includes a first electrical component, a second electrical component, and a wireless power receiver system. The wireless power receiver system includes a first receiver antenna configured to couple with a first transmission antenna and receive virtual AC power signals from the first transmission antenna. A second receiver antenna is configured to couple with a second transmission antenna and receive virtual DC power signals from the second transmitter antenna. A first receiver power conditioning system is configured to receive the virtual AC power signals, convert the virtual AC power signals to AC received power signals, and provide the AC received power signals to power the first electrical component. The second receiver power conditioning system configured to receive the virtual DC power signals, convert the virtual DC power signals to DC received power signals, and provide the DC received power signals to power the second electrical component.
A47J 47/01 - Kitchen containers, stands or the like, not provided for in other groups of this subclassCutting-boards, e.g. for bread with dispensing devices
H02J 50/20 - Circuit arrangements or systems for wireless supply or distribution of electric power using microwaves or radio frequency waves
H02J 50/60 - Circuit arrangements or systems for wireless supply or distribution of electric power responsive to the presence of foreign objects, e.g. detection of living beings
48.
Wireless Charging in Eyewear With Enhanced Positional Freedom
Eyewear and receptacles for housing such eyewear include components of a wireless power transfer system. The eyewear includes a receiver system for receiving power from a transmission system associated with the receptacle(s). The receiver system includes at least one receiver antenna, for receiving wireless power from the transmission system, and a repeater antenna for repeating the wireless power signal to the receiver antenna. The receiver antenna is positioned proximate to a first arm of the eyewear and the repeater is positioned proximate to a second arm of the eyewear. Positioning of the receiver and repeater antennas allows for positional freedom of the eyewear and/or the arms of the eyewear, when mechanically received by the receptacle.
H02J 50/50 - Circuit arrangements or systems for wireless supply or distribution of electric power using additional energy repeaters between transmitting devices and receiving devices
H02J 50/00 - Circuit arrangements or systems for wireless supply or distribution of electric power
H02J 50/27 - Circuit arrangements or systems for wireless supply or distribution of electric power using microwaves or radio frequency waves characterised by the type of receiving antennas, e.g. rectennas
H02J 50/90 - Circuit arrangements or systems for wireless supply or distribution of electric power involving detection or optimisation of position, e.g. alignment
49.
Systems and methods for dynamically tuning a wireless power transfer system
A wireless power transmission system includes a voltage regulator, an inverter, a capacitor circuit, an antenna, and a controller. The inverter receives a first alternating current (AC) signal that has a configurable frequency and produces a configurable supply voltage. The inverter produces a second AC signal based on the first AC signal and the configurable supply voltage. The second AC signal has the configurable frequency and a configurable power level that corresponds to the configurable supply voltage. The capacitor circuit includes two or more capacitors and is configured to, based on a configuration state of the bank of two or more capacitors, tune the second AC signal with the bank of two or more capacitors and thereby produce a third AC signal. The controller is configured to define the configurable frequency, define the level of the configurable supply voltage, and define the configuration state.
H02J 50/12 - Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling of the resonant type
H02J 50/20 - Circuit arrangements or systems for wireless supply or distribution of electric power using microwaves or radio frequency waves
H02J 50/80 - Circuit arrangements or systems for wireless supply or distribution of electric power involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
50.
Wireless power transfer system with power and data mode switching
A wireless power transmission system includes a transmitter antenna, a transmission controller, an amplifier, and a variable resistor. The transmission controller is configured to (i) provide a driving signal for driving the transmitter antenna based on an operating frequency for the wireless power transfer system and (ii) perform one or more of encoding the wireless data signals, decoding the wireless data signals, receiving the wireless data signals, or transmitting the wireless data signals. The variable resistor is in electrical connection with the transmitter antenna and configured to alter a quality factor (Q) of the transmitter antenna, wherein alterations in the Q by the variable resistor change an operating mode of the wireless power transmission system.
H02J 50/12 - Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling of the resonant type
H02J 50/20 - Circuit arrangements or systems for wireless supply or distribution of electric power using microwaves or radio frequency waves
H02J 50/80 - Circuit arrangements or systems for wireless supply or distribution of electric power involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
H04B 5/72 - Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes for local intradevice communication
H04B 5/79 - Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes for data transfer in combination with power transfer
51.
Software based thermal mitigation for wireless power and data transfer systems
A method for operating a wireless power transfer system includes determining a driving signal for transfer of the AC wireless signals, the driving signals based on an operating frequency for the AC wireless signals, a power requirement for the wireless power signals, data contained in the wireless data signals, and one or more thermal mitigation features. Each of the one or more thermal mitigation features are configured to reduce temperature of at least one surface or volume of the wireless transmission system or the wireless receiver system. The method further includes providing the driving signal to an amplifier of the wireless power transmission system and driving a transmitter antenna of the wireless power transmission system, by the amplifier, based on the driving signal.
H02J 50/80 - Circuit arrangements or systems for wireless supply or distribution of electric power involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
H02J 7/00 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
H02J 50/10 - Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
52.
Detection of foreign objects in large charging volume applications
A wireless power transmission system includes a wireless power transmitter, a wireless power transfer circuit electrically connectable to the at least one wireless power transmitter, and a transmitter controller. The transmitter controller is configured to perform an initial foreign object detection prior to any transmission of wireless power, the initial foreign object detection for detecting presence of a foreign object within a charge volume, the initial foreign object detection determining an initial quality factor (Q). The controller is further configured to begin wireless power transfer negotiations with one of the one or more wireless power receivers, if the initial Q has a value in a range indicating that an object in the charge volume is a wireless power receiver, and perform continuous foreign object detection, if the initial Q has the value in the range indicating that an object in the charge volume is a wireless power receiver.
H02J 7/00 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
H02J 50/00 - Circuit arrangements or systems for wireless supply or distribution of electric power
H02J 50/10 - Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
H02J 50/12 - Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling of the resonant type
H02J 50/40 - Circuit arrangements or systems for wireless supply or distribution of electric power using two or more transmitting or receiving devices
H02J 50/60 - Circuit arrangements or systems for wireless supply or distribution of electric power responsive to the presence of foreign objects, e.g. detection of living beings
H02J 50/80 - Circuit arrangements or systems for wireless supply or distribution of electric power involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
The present application relates to an apparatus which comprises a wireless power transmission system. This system comprises features which allow it to transfer more power wirelessly to multiple devices simultaneously, each at extended distances than other systems operating in the same frequency range. The system including heat dissipation features, allowing the system to operate effectively in elevated-temperature environments and to transfer power at higher levels and/or greater distances than a typical power-transfer system. The system also may include design features to withstand mechanical shocks, stresses, and impacts for use in a rugged environment. The system may include features to reduce electromagnetic interference (EMI) and/or specially shaped components with magnetic/ferrimagnetic properties that enhance performance. Other potential features include power conditioning by combining, within one circuit or one board, multiple elements that protect against excessive current, over-voltage, and/or reverse voltage.
H02J 50/40 - Circuit arrangements or systems for wireless supply or distribution of electric power using two or more transmitting or receiving devices
H02J 50/10 - Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
H02J 50/90 - Circuit arrangements or systems for wireless supply or distribution of electric power involving detection or optimisation of position, e.g. alignment
54.
Multi-layer-multi-turn structure for high efficiency wireless communication
A structure for wireless communication having a plurality of conductor layers, an insulator layer separating each of the conductor layers, and at least one connector connecting two of the conductor layers wherein an electrical resistance is reduced when an electrical signal is induced in the resonator at a predetermined frequency. The structure is capable of transmitting or receiving electrical energy and/or data at various near and far field magnetic coupling frequencies.
H01F 29/02 - Variable transformers or inductances not covered by group with tappings on coil or windingVariable transformers or inductances not covered by group with provision for rearrangement or interconnection of windings
H01F 41/00 - Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformersApparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
H01F 41/04 - Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformersApparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils or magnets for manufacturing coils
H01Q 1/38 - Structural form of radiating elements, e.g. cone, spiral, umbrella formed by a conductive layer on an insulating support
H01Q 7/00 - Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop
H01R 43/00 - Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
H02J 50/00 - Circuit arrangements or systems for wireless supply or distribution of electric power
H02J 50/12 - Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling of the resonant type
H02P 13/00 - Arrangements for controlling transformers, reactors or choke coils, for the purpose of obtaining a desired output
H04B 5/77 - Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes for interrogation
H04B 5/79 - Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes for data transfer in combination with power transfer
H05B 6/06 - Control, e.g. of temperature, of power
A61N 1/36 - Applying electric currents by contact electrodes alternating or intermittent currents for stimulation, e.g. heart pace-makers
A61N 1/375 - Constructional arrangements, e.g. casings
B33Y 80/00 - Products made by additive manufacturing
H04B 5/72 - Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes for local intradevice communication
H05K 1/16 - Printed circuits incorporating printed electric components, e.g. printed resistor, capacitor, inductor
55.
Wireless Power Transmitters For Transmitting Power At Extended Separation Distances With Magnetic Connectors
A power transmitter is configured for transmission of wireless power, to a wireless receiver, at extended ranges, including a separation gap greater than 8 millimeters (mm). The power transmitter further includes a coil configured to transmit the power signal to a power receiver, the coil formed of wound Litz wire and including at least one layer, the coil defining, at least, a top face. The power transmitter further includes a shielding comprising a ferrite core and defining a cavity, the cavity configured such that the ferrite core substantially surrounds all but the top face of the coil. The power transmitter includes at least one magnet, the at least one magnet configured to attract at least one receiver magnet when a power receiver is proximate to a surface associated with the power transmitter.
H02J 50/12 - Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling of the resonant type
H02J 50/60 - Circuit arrangements or systems for wireless supply or distribution of electric power responsive to the presence of foreign objects, e.g. detection of living beings
H02J 50/80 - Circuit arrangements or systems for wireless supply or distribution of electric power involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
H02J 50/90 - Circuit arrangements or systems for wireless supply or distribution of electric power involving detection or optimisation of position, e.g. alignment
H04B 5/79 - Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes for data transfer in combination with power transfer
56.
Wireless power transmitter for high fidelity communications at high power transfer
Wireless power transfer systems, disclosed, include one or more circuits to facilitate high power transfer at high frequencies. Such wireless power transfer systems include a damping circuit, configured to dampen a wireless power signal such that communications fidelity is upheld at high power. The damping circuit includes at least a damping transistor that is configured to receive, from the transmitter controller, a damping signal for switching the transistor to control damping during transmission of the wireless data signals. Utilizing such systems enables wireless power transfer at high frequency, such as 13.56 MHz, at voltages over 1 Watt, while maintaining fidelity of in-band communications associated with the higher power wireless power signal.
H02J 50/12 - Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling of the resonant type
H02J 50/20 - Circuit arrangements or systems for wireless supply or distribution of electric power using microwaves or radio frequency waves
H02J 50/80 - Circuit arrangements or systems for wireless supply or distribution of electric power involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
H04B 5/79 - Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes for data transfer in combination with power transfer
H04L 27/02 - Amplitude-modulated carrier systems, e.g. using on/off keyingSingle sideband or vestigial sideband modulation
57.
WIRELESS POWER TRANSMITTERS AND ASSOCIATED BASE STATIONS FOR TRANSMITTING POWER AT EXTENDED SEPARATION DISTANCES
A power transmitter includes a coil configured to transmit the power signal to a power receiver, the coil formed of wound Litz wire and including a first coil portion and a second coil portion, the second coil portion positioned radially outward of the first coil portion. The power transmitter includes a shielding comprising a first shield portion and a second shield portion. The first shield portion defining a first cavity configured such that the ferrite core substantially surrounds all but the top face of the first coil portion. The second shield portion includes a magnetic backing and a magnetic ring, which, in combination, define a second cavity, the magnetic ring defining a bottom portion, a top portion, and an inner sidewall defining an outward extending shape extending radially outward from the bottom portion to the top portion, the second coil portion positioned within the second cavity.
H02J 50/70 - Circuit arrangements or systems for wireless supply or distribution of electric power involving the reduction of electric, magnetic or electromagnetic leakage fields
H01F 27/36 - Electric or magnetic shields or screens
H02J 50/12 - Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling of the resonant type
58.
Virtual AC power signal transfer using wireless power transfer system
A wireless power transfer system includes a wireless power transmission system and a wireless power receiver system. The wireless power transmission system includes a transmission antenna, a transmission controller, and a transmission power conditioning system. The transmission controller is configured to provide a driving signal for driving the transmission antenna based on an operating frequency and a virtual AC power frequency. The transmission power conditioning system is configured to generate the virtual AC power signals at the operating frequency and having peak voltages rising and falling based on the virtual AC power frequency. The wireless power receiver system includes the receiver antenna and the power conditioning system. The receiver power conditioning system is configured to receive the virtual AC power signals, convert the virtual AC power signals to alternating current (AC) received power signals, and provide the AC input power signals to a load.
H02J 50/40 - Circuit arrangements or systems for wireless supply or distribution of electric power using two or more transmitting or receiving devices
H02J 50/10 - Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
H02J 50/80 - Circuit arrangements or systems for wireless supply or distribution of electric power involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
A sensing system includes a sensor, a wireless transmission system, a wireless receiver system, and a controller. The sensor is configured to determine sensor data, the sensor data associated with a sensing environment. The wireless transmission system is configured to wirelessly couple with the sensor, the wireless transmission system configured for wirelessly providing significant electrical energy to the sensor as wireless power signals and receive the sensor data as in-band data signals encoded in the wireless power signals. The wireless receiver system is operatively associated with the sensor and with which the wireless transmission system couples with the sensor and is configured to receive the significant electrical energy as the wireless power signals from the wireless transmission system. The controller is operatively associated with the wireless transmission system and is configured to decode the in-band signals from the wireless power signals as the sensor data.
H02J 50/80 - Circuit arrangements or systems for wireless supply or distribution of electric power involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
H02J 50/60 - Circuit arrangements or systems for wireless supply or distribution of electric power responsive to the presence of foreign objects, e.g. detection of living beings
H04L 27/02 - Amplitude-modulated carrier systems, e.g. using on/off keyingSingle sideband or vestigial sideband modulation
60.
Automatic Gain Control For Communications Demodulation In Wireless Power Transmitters
A demodulation circuit includes a slope detector circuit and a comparator circuit. The slope detector circuit is configured detect a change in the voltage and determine if the voltage rate of change meets or exceeds one of a rise threshold or a fall threshold. The comparator circuit is configured to set an upper limit and lower limit for rate of change, compare the voltage rate of change to the limits, determine that the voltage rate of change meets or exceeds the limits, if the voltage rate of change meets or exceeds the rising and falling rate of change limits, (v) set a lower limit for a falling rate of change, (vi) receive the voltage rate of change and determine that the voltage rate of change meets or exceeds the fall or rise threshold, if the voltage rate of change meets or exceeds the falling or rising rate of change.
H02J 50/80 - Circuit arrangements or systems for wireless supply or distribution of electric power involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
H02J 50/12 - Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling of the resonant type
H02J 50/60 - Circuit arrangements or systems for wireless supply or distribution of electric power responsive to the presence of foreign objects, e.g. detection of living beings
H04B 5/79 - Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes for data transfer in combination with power transfer
61.
Device having a multimode antenna with variable width of conductive wire
A method of providing a single structure multiple mode antenna is described. The antenna is preferably constructed having a first inductor coil that is electrically connected in series with a second inductor coil. The antenna is constructed having a plurality of electrical connections positioned along the first and second inductor coils. A plurality of terminals is connected to the electrical connections that facilitate numerous electrical connections and enables the antenna to be selectively tuned to various frequencies and frequency bands.
H01F 41/04 - Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformersApparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils or magnets for manufacturing coils
H01Q 7/00 - Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop
H01Q 7/06 - Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop with core of ferromagnetic material
H02J 5/00 - Circuit arrangements for transfer of electric power between ac networks and dc networks
H02J 7/00 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
H02J 50/80 - Circuit arrangements or systems for wireless supply or distribution of electric power involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
H01F 21/02 - Variable inductances or transformers of the signal type continuously variable, e.g. variometers
H01F 21/12 - Variable inductances or transformers of the signal type discontinuously variable, e.g. tapped
H01F 29/02 - Variable transformers or inductances not covered by group with tappings on coil or windingVariable transformers or inductances not covered by group with provision for rearrangement or interconnection of windings
An electrically conductive material configured having at least one opening of various unlimited geometries extending through its thickness is provided. The opening is designed to modify eddy currents that form within the surface of the material from interaction with magnetic fields that allow for wireless energy transfer therethrough. The opening may be configured as a cut-out, a slit or combination thereof that extends through the thickness of the electrically conductive material. The electrically conductive material is configured with the cut-out and/or slit pattern positioned adjacent to an antenna configured to receive or transmit electrical energy wirelessly through near-field magnetic coupling (NFMC). A magnetic field shielding material, such as a ferrite, may also be positioned adjacent to the antenna. Such magnetic shielding materials may be used to strategically block eddy currents from electrical components and circuitry located within a device.
H01Q 1/22 - SupportsMounting means by structural association with other equipment or articles
H01Q 1/24 - SupportsMounting means by structural association with other equipment or articles with receiving set
H01Q 1/36 - Structural form of radiating elements, e.g. cone, spiral, umbrella
H01Q 1/38 - Structural form of radiating elements, e.g. cone, spiral, umbrella formed by a conductive layer on an insulating support
H01Q 7/00 - Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop
H02J 50/12 - Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling of the resonant type
H02J 50/70 - Circuit arrangements or systems for wireless supply or distribution of electric power involving the reduction of electric, magnetic or electromagnetic leakage fields
H04B 5/72 - Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes for local intradevice communication
H04B 5/79 - Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes for data transfer in combination with power transfer
H05K 5/02 - Casings, cabinets or drawers for electric apparatus Details
H05K 9/00 - Screening of apparatus or components against electric or magnetic fields
H01F 27/34 - Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
H02J 7/00 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
63.
Precision Power Level Control For Extended Range Wireless Power Transfer
A power transmitter for wireless power transfer includes a control and communications unit configured to provide power control signals to a power supply external to the power transmitter for controlling a power level of a power signal configured for transmission to a power receiver, the power supply configured to configure a direct current (DC) power based on the power control signals. The power transmitter further includes an inverter circuit configured to receive the DC power from the power supply external to the power transmitter and convert the input power to a power signal. The power transmitter further includes a coil formed of wound Litz wire and including at least one layer, the coil defining, at least, a top face and shielding comprising a ferrite core and defining a cavity, the cavity configured such that the ferrite core substantially surrounds all but the top face of the coil.
H02J 50/80 - Circuit arrangements or systems for wireless supply or distribution of electric power involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
H02J 50/12 - Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling of the resonant type
H02J 50/60 - Circuit arrangements or systems for wireless supply or distribution of electric power responsive to the presence of foreign objects, e.g. detection of living beings
H02J 50/70 - Circuit arrangements or systems for wireless supply or distribution of electric power involving the reduction of electric, magnetic or electromagnetic leakage fields
64.
Wireless power transmitter for high fidelity communications with amplitude shift keying
Wireless power transfer systems, disclosed, include one or more circuits to facilitate high power transfer at high frequencies. Such wireless power transfer systems include a damping circuit, configured to dampen a wireless power signal such that communications fidelity is upheld at high power. The damping circuit includes at least a damping transistor that is configured to receive, from the transmitter controller, a damping signal for switching the transistor to control damping during transmission of amplitude shift keying (ASK) wireless data signals. Utilizing such systems enables wireless power transfer at high frequency, such as 13.56 MHz, at voltages over 1 Watt, while maintaining fidelity of in-band communications associated with the higher power wireless power signal.
H02J 50/12 - Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling of the resonant type
H02J 50/20 - Circuit arrangements or systems for wireless supply or distribution of electric power using microwaves or radio frequency waves
H02J 50/80 - Circuit arrangements or systems for wireless supply or distribution of electric power involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
H04B 5/72 - Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes for local intradevice communication
H04B 5/79 - Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes for data transfer in combination with power transfer
65.
WIRELESS POWER TRANSMITTERS AND ASSOCIATED BASE STATIONS FOR TRANSMITTING POWER AT EXTENDED SEPARATION DISTANCES
A power transmitter includes a control and communications unit and an inverter circuit configured to receive input power and convert the input power to a power signal. The power transmitter further includes a coil configured to transmit the power signal to a power receiver, the coil formed of wound Litz wire and including a first coil portion and a second coil portion, the first coil portion defining a top face and a first diameter, the second coil portion defining a second diameter, the second diameter being greater than the first diameter. The power transmitter further includes a shielding comprising a ferrite core and defining a cavity and a magnetic ring, the cavity configured such that the ferrite core substantially surrounds all but the top face of the first coil portion and the second coil portion is positioned, at least in part, above the magnetic ring.
H02J 50/70 - Circuit arrangements or systems for wireless supply or distribution of electric power involving the reduction of electric, magnetic or electromagnetic leakage fields
H02J 50/12 - Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling of the resonant type
H02J 50/90 - Circuit arrangements or systems for wireless supply or distribution of electric power involving detection or optimisation of position, e.g. alignment
66.
Systems and methods for pulse width encoded data communications
A system for wireless communications includes an antenna and a controller, the antenna configured to transmit electrical data signals, the electrical data signals including an encoded message signal. The encoded message signal including one or more encoded message words. The controller is configured to encode one or more message words, of a message signal, into one or more encoded message words of the encoded message signal, based on a coding format. The coding format correlates each of a plurality of correlated ratios with one of a plurality of format words. Each of the plurality of correlated ratios is a ratio of a duty cycle of a pulse to a respective period associated with one or both of the duty cycle and the pulse. Each of the one or more encoded message words are encoded as one of the plurality of correlated ratios.
H04B 1/38 - Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
H01F 27/42 - Circuits specially adapted for the purpose of modifying, or compensating for, electric characteristics of transformers, reactors or choke coils
H02J 50/12 - Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling of the resonant type
H02J 50/20 - Circuit arrangements or systems for wireless supply or distribution of electric power using microwaves or radio frequency waves
H02J 50/80 - Circuit arrangements or systems for wireless supply or distribution of electric power involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
H04B 5/79 - Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes for data transfer in combination with power transfer
A wireless power transfer system is provided having a wireless transmission system with an input to receive input power from an input power source, a transmission antenna configured to couple with a receiver antenna associated with a wireless receiver system in a peripheral device, and a transmission controller configured to generate AC wireless signals including wireless power signals and wireless data signals. The transmission controller is further configured to derive a coupling factor based on coupling data sent from the wireless receiver system to the wireless transmission system, generate an update frequency based on the derived coupling factor, and transmit the update frequency to the wireless receiver system in the peripheral device, whereby the peripheral device provides coupling data to the wireless transmission system based on the update frequency.
H02J 50/80 - Circuit arrangements or systems for wireless supply or distribution of electric power involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
H02J 50/12 - Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling of the resonant type
H02J 50/20 - Circuit arrangements or systems for wireless supply or distribution of electric power using microwaves or radio frequency waves
H04B 5/79 - Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes for data transfer in combination with power transfer
H02J 50/60 - Circuit arrangements or systems for wireless supply or distribution of electric power responsive to the presence of foreign objects, e.g. detection of living beings
H02J 50/90 - Circuit arrangements or systems for wireless supply or distribution of electric power involving detection or optimisation of position, e.g. alignment
68.
Ruggedized Communication for Wireless Power Systems in Multi-Device Environments
A wireless power transmission system includes a wireless power transmitter, a wireless power transfer circuit electrically connectable to the at least one wireless power transmitter, and a transmitter controller. The transmitter controller is configured to determine presence of a wireless power receiver system, encode or decode a communications signal communicated over a magnetic field, the magnetic field produced by coupling of the wireless power transmitter and the one or more wireless power receiver systems. The transmitter controller is further configured to determine presence of one or more of unwanted noise, unwanted data, or combinations thereof, within a proximity communications frequency band, the proximity communications frequency band substantially similar to the communications frequency band. The transmitter controller is further configured to filter the one or more of unwanted noise, unwanted data, or combinations thereof to determine a filtered communications signal.
H02J 50/10 - Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
H02J 7/02 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from AC mains by converters
H02J 50/60 - Circuit arrangements or systems for wireless supply or distribution of electric power responsive to the presence of foreign objects, e.g. detection of living beings
H02J 50/70 - Circuit arrangements or systems for wireless supply or distribution of electric power involving the reduction of electric, magnetic or electromagnetic leakage fields
H02J 50/80 - Circuit arrangements or systems for wireless supply or distribution of electric power involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
H02J 50/90 - Circuit arrangements or systems for wireless supply or distribution of electric power involving detection or optimisation of position, e.g. alignment
69.
Higher Power High Frequency Wireless Power Transfer System
Wireless power transfer systems, disclosed, include one or more circuits to facilitate high power transfer at high frequencies. Such wireless power transfer systems may include a damping circuit, configured to dampen a wireless power signal such that communications fidelity is upheld at high power. Additionally or alternatively, such wireless power transfer systems may include voltage isolation circuits, to isolate components of the wireless receiver systems from high voltage signals intended for a load associated with the receiver. Utilizing such systems enables wireless power transfer at high frequency, such as 13.56 MHz, at voltages over 1 Watt, while maintaining fidelity of in-band communications associated with the higher power wireless power signal.
H02J 50/80 - Circuit arrangements or systems for wireless supply or distribution of electric power involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
H02J 50/12 - Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling of the resonant type
H02J 50/20 - Circuit arrangements or systems for wireless supply or distribution of electric power using microwaves or radio frequency waves
H04B 5/79 - Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes for data transfer in combination with power transfer
70.
Cross talk and interference mitigation in dual wireless power transmitter
H02J 50/40 - Circuit arrangements or systems for wireless supply or distribution of electric power using two or more transmitting or receiving devices
H02J 50/10 - Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
H02J 50/80 - Circuit arrangements or systems for wireless supply or distribution of electric power involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
H04B 5/79 - Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes for data transfer in combination with power transfer
71.
Power Capability Detection For Wireless Power Transmission Based On Receiver Power Request
A power transmitter for wireless power transfer includes a control and communications unit, an inverter circuit, a coil, and a shielding. The control and communications unit is configured to provide power control signals to control a power level of a power signal configured for transmission to a power receiver, receive a receiver power request from a power receiver, provide a power request to an external power supply, based on the receiver power request, determine if a power signal at the coil is compliant with the receiver power request, and, if the power signal at the coil is compliant with the receiver power request, continue to operate for wireless power transmission. The coil is configured to transmit the power signal to a power receiver. The shielding comprises a ferrite core.
H02J 50/80 - Circuit arrangements or systems for wireless supply or distribution of electric power involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
H01F 27/36 - Electric or magnetic shields or screens
H02J 50/12 - Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling of the resonant type
H02J 50/70 - Circuit arrangements or systems for wireless supply or distribution of electric power involving the reduction of electric, magnetic or electromagnetic leakage fields
H02J 50/60 - Circuit arrangements or systems for wireless supply or distribution of electric power responsive to the presence of foreign objects, e.g. detection of living beings
72.
Low Cost Communications Demodulation for Wireless Power Receiver System
A wireless receiver system includes a receiver antenna, a sensor, a demodulation circuit, and a receiver controller. The sensor is configured to detect electrical information associated with AC wireless signals, the electrical information including, at least, a voltage of the AC wireless signals. The demodulation circuit is configured to receive the electrical information from the at least one sensor, detect a change in the electrical information, determine if the change in the electrical information meets or exceeds one of a rise threshold or a fall threshold, if the change exceeds one of the rise threshold or the fall threshold, generate an alert, and output a plurality of data alerts. The receiver controller is configured to receive the plurality of data alerts from the demodulation circuit, and decode the plurality of data alerts into the wireless data signals.
H02J 50/80 - Circuit arrangements or systems for wireless supply or distribution of electric power involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
H02J 50/12 - Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling of the resonant type
H04B 5/79 - Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes for data transfer in combination with power transfer
A wireless transmission system includes a transmitter antenna, a sensor, a demodulation circuit, and a transmitter controller. The sensor is configured to detect electrical information associated with AC wireless signals, the electrical information including, at least, a voltage of the AC wireless signals. The demodulation circuit is configured to receive the electrical information from the at least one sensor, detect a change in the electrical information, determine if the change in the electrical information meets or exceeds one of a rise threshold or a fall threshold, if the change exceeds one of the rise threshold or the fall threshold, generate an alert, and output a plurality of data alerts. The transmitter controller is configured to receive the plurality of data alerts from the demodulation circuit, and decode the plurality of data alerts into the wireless data signals.
H02J 50/80 - Circuit arrangements or systems for wireless supply or distribution of electric power involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
H02J 50/12 - Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling of the resonant type
H04B 5/79 - Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes for data transfer in combination with power transfer
A method for operating a wireless power transmission system includes providing a driving signal for driving a transmission antenna of the wireless power transmission system, the driving signal based, at least, on an operating frequency for the wireless power transmission system. The method further includes inverting, by the at least one transistor, a direct current (DC) input power signal to generate an AC wireless signal at the operating frequency, based on provided driving signals. The method includes receiving, at a damping circuit, damping signals configured for switching the damping transistor to one of an active mode and an inactive mode to control signal damping, wherein the damping signals switch to the active mode periodically. The method further includes selectively damping, by the damping circuit, the AC wireless signals, during transmission of the wireless data signals if the damping signals set the damping circuit to the active mode.
H02J 50/12 - Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling of the resonant type
H02J 50/20 - Circuit arrangements or systems for wireless supply or distribution of electric power using microwaves or radio frequency waves
H02J 50/80 - Circuit arrangements or systems for wireless supply or distribution of electric power involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
H04B 5/72 - Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes for local intradevice communication
H04B 5/79 - Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes for data transfer in combination with power transfer
75.
Wireless power transmitter for high fidelity communications and high power transfer
Wireless power transfer systems, disclosed, include one or more circuits to facilitate high power transfer at high frequencies. Such wireless power transfer systems include a transmission integrated circuit which includes a damping circuit and a transmitter controller, configured to dampen a wireless power signal such that communications fidelity is upheld at high power. The damping circuit includes at least a damping transistor that is configured to receive, from the transmitter controller, a damping signal for switching the transistor to control damping during transmission of the wireless data signals. Utilizing such systems enables wireless power transfer at high frequency, such as 13.56 MHz, at voltages over 1 Watt, while maintaining fidelity of in-band communications associated with the higher power wireless power signal.
H02J 50/12 - Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling of the resonant type
H02J 50/20 - Circuit arrangements or systems for wireless supply or distribution of electric power using microwaves or radio frequency waves
H02J 50/80 - Circuit arrangements or systems for wireless supply or distribution of electric power involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
H04B 5/00 - Near-field transmission systems, e.g. inductive or capacitive transmission systems
H04B 5/72 - Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes for local intradevice communication
H04B 5/79 - Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes for data transfer in combination with power transfer
76.
WIRELESS POWER TRANSFER SYSTEM FOR WEARABLE COMMUNICATION DEVICES
A wireless power transfer system, for charging a wearable communication device, includes a headset, which includes a headband, at least one earcup, and a receiver antenna configured to receive a power signal, wherein the receiver antenna is positioned proximate to or within the headset. The system further includes a charging base, which includes a transmission antenna, configured to transmit the power signal to the receiver antenna, and a housing. The housing includes a support arm and a base, wherein the transmission antenna is positioned proximate to or within one or more of the support arm, the base, and combinations thereof, and wherein the support arm is configured to retain the headband and position the receiving antenna to receive the power signal from the transmitting antenna.
A wireless power transfer system, for charging a wearable communication device, includes a headset, which includes a headband, at least one earcup, and a receiver antenna configured to receive a power signal, wherein the receiver antenna is positioned proximate to or within the headband. The system further includes a transmitter device including a transmitter antenna, configured to transmit the power signal to the receiver antenna, an input power source linked to the transmitter antenna, and a transmitter housing, wherein the transmitter antenna and the input power source are positioned proximate to or within the transmitter housing. The system further includes a retention mechanism configured to retain the transmitter device proximate to, on or at least partially within the headband and position the transmitter antenna to transmit the power signal to the receiver antenna.
H02J 50/10 - Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
H02J 50/00 - Circuit arrangements or systems for wireless supply or distribution of electric power
H02J 50/80 - Circuit arrangements or systems for wireless supply or distribution of electric power involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
78.
COMPUTING DEVICE BASED WIRELESS POWER TRANSMITTERS FOR WEARABLE COMMUNICATION DEVICES
A wireless power transfer system, for charging a wearable communication device, includes a headset, which includes a headband, at least one earcup, and a receiver antenna configured to receive a power signal, wherein the receiver antenna is positioned proximate to or within the headband. The system further includes a charging hook, which includes a transmission antenna, configured to transmit the power signal to the receiver antenna, and a housing. The housing includes a support arm and an attachment structure, wherein the transmission antenna is positioned proximate to or within the support arm, and wherein the support arm is configured to retain the headband and position the receiving antenna to receive the power signal from the transmitting antenna.
H02J 50/10 - Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
H02J 50/00 - Circuit arrangements or systems for wireless supply or distribution of electric power
H02J 50/80 - Circuit arrangements or systems for wireless supply or distribution of electric power involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
79.
THROUGH HEADBAND WIRELESS POWER TRANSFER SYSTEM FOR WEARABLE COMMUNICATION DEVICES
A wireless power transfer system, for charging a wearable communication device, includes a headset, which includes a headband, at least one earcup, and a receiver antenna configured to receive a power signal, wherein the receiver antenna is positioned proximate to or within the headband. The system further includes a charging base, which includes a transmission antenna, configured to transmit the power signal to the receiver antenna, and a housing. The housing includes a support arm and a base, wherein the transmission antenna is positioned proximate to or within one or more of the support arm, the base, and combinations thereof, and wherein the support arm is configured to retain the headband and position the receiving antenna to receive the power signal from the transmitting antenna.
H02J 50/27 - Circuit arrangements or systems for wireless supply or distribution of electric power using microwaves or radio frequency waves characterised by the type of receiving antennas, e.g. rectennas
80.
THROUGH EARCUP WIRELESS POWER TRANSFER SYSTEM FOR WEARABLE COMMUNICATION DEVICES
A wireless power transfer system, for charging a wearable communication device, includes a headset, which includes a headband, at least one earcup, and a receiver antenna configured to receive a power signal, wherein the receiver antenna is positioned proximate to or within the earcup. The system further includes a charging base, which includes a transmission antenna, configured to transmit the power signal to the receiver antenna, and a housing. The housing includes a support arm and a base, wherein the transmission antenna is positioned proximate to or within one or more of the support arm, the base, and combinations thereof, and wherein the support arm is configured to retain the headband and position the receiving antenna to receive the power signal from the transmitting antenna.
A method for operating a wireless power transfer system includes determining a driving signal for transfer of the AC wireless signals, the driving signals based on an operating frequency for the AC wireless signals, a power requirement for the wireless power signals, data contained in the wireless data signals, and one or more thermal mitigation features. Each of the one or more thermal mitigation features are configured to reduce temperature of at least one surface or volume of the wireless transmission system or the wireless receiver system. The method further includes providing the driving signal to an amplifier of the wireless power transmission system and driving a transmitter antenna of the wireless power transmission system, by the amplifier, based on the driving signal.
H02J 50/80 - Circuit arrangements or systems for wireless supply or distribution of electric power involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
H02J 7/00 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
H02J 50/10 - Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
82.
Wireless power transfer system with extended wireless charging range
The present application relates to an apparatus which comprises a wireless power transfer system. This system comprises features which allow it to transfer more power wirelessly at extended distances than other systems operating in the same frequency range. The system possesses heat dissipation features; these features allow it to operate effectively in elevated-temperature environments, and to transfer power at higher levels and/or greater distances than a typical power-transfer system. The system also might include design features to withstand mechanical shocks, stresses, and impacts for use in a rugged environment. The system can also comprise adaptations to reduce electromagnetic interference, and can comprise specially shaped components with magnetic/ferrimagnetic properties that enhance performance. Other potential features include power conditioning by combining, within one circuit or one board, multiple elements that protect against excessive current, over-voltage, and/or reverse voltage.
A power transmitter for wireless power transfer includes a control and communications unit configured to provide power control signals to control a power level of a power signal configured for transmission to a power receiver and including a pulse width modulation (PWM) signal generator for determining and selecting the operating frequency from the operating frequency range. The power transmitter further includes an inverter circuit configured to receive a direct current (DC) power and convert the input power to a power signal, coil configured to transmit the power signal to a power receiver, the coil formed of wound Litz wire and including at least one layer, the coil defining, at least, a top face, and a shielding comprising a ferrite core and defining a cavity, the cavity configured such that the ferrite core substantially surrounds all but the top face of the coil.
H02J 50/80 - Circuit arrangements or systems for wireless supply or distribution of electric power involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
H02J 50/12 - Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling of the resonant type
H02J 50/50 - Circuit arrangements or systems for wireless supply or distribution of electric power using additional energy repeaters between transmitting devices and receiving devices
H02J 50/70 - Circuit arrangements or systems for wireless supply or distribution of electric power involving the reduction of electric, magnetic or electromagnetic leakage fields
84.
Sensed Temperature Based Pulsed Power in Wireless Power and Data Transfer System
A method for operating a wireless power transfer system includes determining a driving signal for transfer of the AC wireless signals, the driving signals based on an operating frequency for the AC wireless signals, a power requirement for the wireless power signals, data contained in the wireless data signals, a pulsed power signal protocol, and temperature signals. The power signal protocol includes a plurality of pulses, a plurality of signal-off periods, the wireless power signals and the wireless data signals are transmitted during the plurality of pulses, the temperature signals providing information of temperatures of at least one surface or volume of the wireless transmission system or the wireless receiver system. The method further includes providing the driving signal to an amplifier of the wireless power transmission system and driving a transmitter antenna of the wireless power transmission system, by the amplifier, based on the driving signal.
A method for operating a wireless power transfer system includes determining a driving signal for transfer of the AC wireless signals, the driving signals based on an operating frequency for the AC wireless signals, a power requirement for the wireless power signals, data contained in the wireless data signals, a pulsed power signal protocol, and temperature signals. The pulsed power signal protocol includes a plurality of pulses and a plurality of signal-off periods and the wireless power signals and the wireless data signals are transmitted during the plurality of pulses. The temperature signals provide information of temperatures of at least one surface or volume of the wireless transmission system or the wireless receiver system and each of the plurality of pulses has a pulse length that is based, at least in part, on the temperature signals.
A method for operating a wireless power transfer system includes determining a driving signal for transfer of the AC wireless signals, the driving signals based on an operating frequency for the AC wireless signals, a power requirement for the wireless power signals, data contained in the wireless data signals, and a pulsed power signal protocol, the pulsed power signal protocol including a plurality of pulses and a plurality of power signal-off periods, wherein the wireless power signals are transmitted during the plurality of pulses and the wireless data signals are transmitted during the power signal-off periods. The method further includes providing the driving signal to an amplifier of the wireless power transmission system. The method further includes driving a transmitter antenna of the wireless power transmission system, by the amplifier, based on the driving signal.
H02J 50/10 - Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
H02J 50/80 - Circuit arrangements or systems for wireless supply or distribution of electric power involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
H04B 5/00 - Near-field transmission systems, e.g. inductive or capacitive transmission systems
87.
Bit Inversion for Thermal Mitigation in Wireless Power and Data Transfer System
A method for operating a wireless power transfer system is configured for utilizing software for the purposes of thermal mitigation, via re-encoding data in a bitstream for data communicated in-band of wireless power transfer. The data is encoded as binary messages and, during a message of the bit stream, if the number of high pulses is greater than the number of low pulses, then the message is inverted, such that each of the high pulses of the message invert to a low pulse and each of the low pulses of the message invert to a high pulse. Thus, the data signals will always have 50% or less low pulses in the bit stream.
A method for operating a wireless power transfer system is configured for utilizing software for the purposes of thermal mitigation, via re-encoding data in a bitstream for data communicated in-band of wireless power transfer. The data is encoded as binary messages. The method includes inserting one or more sets of non-data low pulses into the binary bit stream to generate a stuffed binary bit stream, each of the one or more sets of non-data low pulses inserted between a number of bits of the binary bit stream. Such inserting adds non-data low pulse time in the in-band data signal.
H02J 50/00 - Circuit arrangements or systems for wireless supply or distribution of electric power
H02J 50/12 - Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling of the resonant type
H02J 50/40 - Circuit arrangements or systems for wireless supply or distribution of electric power using two or more transmitting or receiving devices
H04B 5/79 - Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes for data transfer in combination with power transfer
89.
Pulsed Power for Thermal Mitigation in Wireless Power and Data Transfer System
A method for operating a wireless power transfer system includes determining, using a controller of a wireless power transmission system, a driving signal for transfer of AC wireless signals, the driving signals based on an operating frequency for the AC wireless signals, a power requirement for the wireless power signals, data contained in the wireless data signals, and a pulsed power signal protocol. The pulsed power signal protocol including a plurality of pulses and a plurality of signal-off periods, wherein the wireless power signals and the wireless data signals are transmitted during the plurality of pulses. The method further includes providing, using the controller of the wireless power transmission system, the driving signal to an amplifier of the wireless power transmission system. The method further includes driving a transmitter antenna of the wireless power transmission system, by the amplifier, based on the driving signal.
H02J 50/80 - Circuit arrangements or systems for wireless supply or distribution of electric power involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
H02J 7/00 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
H02J 50/10 - Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
H04B 5/00 - Near-field transmission systems, e.g. inductive or capacitive transmission systems
90.
Timing Control for Pulsed Power in Wireless Power and Data Transfer System
A method for operating a wireless power transfer system includes determining a driving signal for transfer of the AC wireless signals, the driving signals based on an operating frequency for the AC wireless signals, a power requirement for the wireless power signals, data contained in the wireless data signals, and a pulsed power signal protocol. The pulsed power signal protocol includes a plurality of pulses, a plurality of signal-off periods, and a signal-on timer. The wireless power signals and the wireless data signals are transmitted during the plurality of pulses and the signal-on timer.
A system for wireless power transfer includes a wireless transmission system, a wireless receiver system, and a dynamic tuning controller. The wireless transmission system configures an electrical energy signal, using the power from the input power source, for transmission by a transmission antenna. The wireless receiver system is operatively associated with a load and is configured to receive the electrical energy signal from the wireless transmission system, via coupling of the transmission antenna and receiver antenna, and configure the electrical energy signal to transfer power to the load. The dynamic tuning controller is configured to determine an output of the system and determine existence of disturbances to the system, based on the output, control alterations to one or more forward gain elements of one or more of the wireless transmission system, the wireless receiver system, and combinations thereof, if one or more disturbances exist, based on the output.
H02J 50/12 - Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling of the resonant type
H02J 50/20 - Circuit arrangements or systems for wireless supply or distribution of electric power using microwaves or radio frequency waves
H02J 50/80 - Circuit arrangements or systems for wireless supply or distribution of electric power involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
92.
Slotted communications in virtual AC power signal transfer with variable slot width
A wireless power transmission system includes a first antenna, a second antenna, a controller, a first power conditioning system, and a second power conditioning system. The controller is configured to determine a first driving signal for driving the first antenna based on a first operating frequency, a virtual AC power frequency, a variable slot length, and slot timing, and determine a second driving signal for driving the second antenna based on a second operating frequency, the slot length, and the slot timing. The first power conditioning system is configured to receive the first driving signal to generate the virtual AC power signals at the first operating frequency, the virtual AC power signals having peak voltages rising and falling based on the virtual AC power frequency. The second power conditioning system is configured to receive the second driving signal to generate the virtual DC power signals at the second operating frequency.
H02J 17/00 - Systems for supplying or distributing electric power by electromagnetic waves
H02J 50/40 - Circuit arrangements or systems for wireless supply or distribution of electric power using two or more transmitting or receiving devices
H02J 50/60 - Circuit arrangements or systems for wireless supply or distribution of electric power responsive to the presence of foreign objects, e.g. detection of living beings
H02J 50/80 - Circuit arrangements or systems for wireless supply or distribution of electric power involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
93.
Dynamic operation adjustment in wireless power transfer system
A wireless power transfer system is provided having a wireless transmission system that includes an input to receive input power from an input power source, a transmission antenna, and a transmission controller configured to generate wireless signals based, at least in part, on the input power, the wireless signals including wireless power signals and wireless data signals, and to transmit such wireless signals. The wireless power transfer system further includes a wireless receiver system in a wireless peripheral device, the wireless receiver system having a receiver antenna configured to receive the wireless power signals and wireless data signals via inductive coupling with the transmission antenna, as well as a receiver controller configured to determine the acceleration of the wireless peripheral device, generate a prescribed update frequency based on the detected acceleration, and transmit operational updates to the wireless transmission system at the prescribed update frequency.
H02J 50/20 - Circuit arrangements or systems for wireless supply or distribution of electric power using microwaves or radio frequency waves
H02J 50/12 - Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling of the resonant type
H02J 50/80 - Circuit arrangements or systems for wireless supply or distribution of electric power involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
H04B 5/79 - Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes for data transfer in combination with power transfer
H02J 50/60 - Circuit arrangements or systems for wireless supply or distribution of electric power responsive to the presence of foreign objects, e.g. detection of living beings
H02J 50/90 - Circuit arrangements or systems for wireless supply or distribution of electric power involving detection or optimisation of position, e.g. alignment
94.
Testing device for electronic devices with in-band virtualized wired communications
A testing device for testing electronic devices includes a test controller and a wireless power transmission system. The test controller is configured to generate testing signals for transmission to at least one of the plurality of electronic devices and receive testing data, in response to the testing signals. The wireless power transmission system is configured to receive the testing signal from the test controller, generate a power signal and a first asynchronous serial data signal in accordance with a wireless power and data transfer protocol, the first asynchronous serial data signal based on the testing signals, decode the power signal to extract a second data signal compliant with the wireless power and data transfer protocol, and decode the second data signal compliant with the wireless power and data transfer protocol to extract a second asynchronous serial data signal, the second asynchronous serial data signal based on the testing data.
H02J 50/10 - Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
H04B 5/79 - Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes for data transfer in combination with power transfer
A device charging system includes a legacy battery-powered mobile electronic device configured for wired-only charging and a wireless charging enabled battery pack. The wireless charging enabled battery pack may contain one or more battery cells as well as a power management integrated circuit (IC) configured to manage charging of the battery cells. The wireless charging enabled battery pack also contains a wireless power module to receive power wirelessly from a WPT (wireless power transfer) power source outside of the legacy device. In keeping with embodiments of the disclosure, a pack microcontroller in the battery pack interfaces to the legacy device, presenting an interface consistent with a wired-only charged battery pack.
H01M 10/46 - Accumulators structurally combined with charging apparatus
H02J 7/00 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
H02J 7/02 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from AC mains by converters
96.
Systems And Methods For Receiver Beaconing In Wireless Power Systems
A wireless power transmission system includes a transmitter antenna, a sensor, a demodulation circuit, and a transmitter controller. The sensor is configured to detect electrical information indicative of data signals encoded in the transmission by a receiver. The demodulation circuit is configured to apply automatic bias control and gain control to the electrical information to generate a modified electrical information signal, detect a change in the modified electrical information signal, and generate alerts based on said change, indicative of the data signals. The transmitter controller is configured to perform a beaconing sequence to determine a coupling between the transmitter antenna and the at least one other antenna, determine the automatic bias control and the automatic gain control, for the demodulation circuit based on the beaconing sequence, receive the plurality of data alerts from the demodulation circuit, and decode the plurality of data alerts into the wireless data signals.
H02J 50/80 - Circuit arrangements or systems for wireless supply or distribution of electric power involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
H02J 50/12 - Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling of the resonant type
H04B 5/00 - Near-field transmission systems, e.g. inductive or capacitive transmission systems
H02J 50/00 - Circuit arrangements or systems for wireless supply or distribution of electric power
97.
Area-apportioned wireless power antenna for maximized charging volume
An antenna for wireless power transfer includes a first antenna portion and a second antenna portion. The first antenna portion includes a first antenna terminal, a second antenna terminal, at least one first inner turn, at least one first outer turn, and a first wire crossover electrically connecting the at least one first inner turn with the at least one second outer turn. The antenna further includes a second antenna portion including a third antenna terminal, a fourth antenna terminal, at least one second inner turn, at least one second outer turn, and a second wire crossover electrically connecting the at least one second inner turn with the at least one second outer turn. The second antenna terminal is in electrical connection with the third antenna terminal and the first antenna terminal and fourth antenna terminal are configured for electrical connection with a transmitter circuit.
H02J 50/23 - Circuit arrangements or systems for wireless supply or distribution of electric power using microwaves or radio frequency waves characterised by the type of transmitting antennas, e.g. directional array antennas or Yagi antennas
H01Q 7/00 - Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop
H02J 50/40 - Circuit arrangements or systems for wireless supply or distribution of electric power using two or more transmitting or receiving devices
Various embodiments of a multi-mode antenna are described. The antenna is preferably constructed having a first inductor coil and a second inductor coil. A plurality of shielding materials are positioned throughout the antenna to minimize interference of the magnetic fields that emanate from the coils from surrounding materials. The antenna comprises a coil control circuit having at least one of an electric filter and an electrical switch configured to modify the electrical impedance of either or both the first and second coils.
H01Q 7/06 - Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop with core of ferromagnetic material
H01Q 1/52 - Means for reducing coupling between antennas Means for reducing coupling between an antenna and another structure
H04B 5/79 - Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes for data transfer in combination with power transfer
99.
Segmented shielding for wide area wireless power transmitter
An antenna for wireless power transfer includes a first antenna terminal, a second antenna terminal, at least one inner turn, the at least one inner turn having an inner turn width, and at least one outer turn, the at least one outer turn having an outer turn width, the outer turn width greater than the inner turn width. The antenna further includes a substrate positioned underneath the at least one inner turn and the at least one outer turn and a plurality of separate panes of a magnetic shielding material. Each of the plurality of separate panes are positioned substantially co-planar, with respect to each other, and positioned between the substrate and both the at least one inner turns and the at least one outer turns.
H02J 50/70 - Circuit arrangements or systems for wireless supply or distribution of electric power involving the reduction of electric, magnetic or electromagnetic leakage fields
H01F 27/36 - Electric or magnetic shields or screens
H02J 50/12 - Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling of the resonant type
H02J 50/40 - Circuit arrangements or systems for wireless supply or distribution of electric power using two or more transmitting or receiving devices
H02J 50/60 - Circuit arrangements or systems for wireless supply or distribution of electric power responsive to the presence of foreign objects, e.g. detection of living beings
H02J 50/80 - Circuit arrangements or systems for wireless supply or distribution of electric power involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
100.
Wireless power transmitter with removable magnetic connector panel for vehicular use
A power transmitter for wireless power transfer includes a control and communications unit, a vehicular power input regulator, an inverter circuit, at least one coil, a shielding, a housing, and a removable front plate. The housing is configured to house, at least in part, one or more of the control and communications unit, the invertor circuit, the at least one coil, the shielding, or combinations thereof. The removable front plate is configured to mechanically connect to the housing, the removable front plate including at least one magnet, the at least one magnet configured to attract a receiver magnet when a power receiver is proximate to the removable front plate.
H02J 50/12 - Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling of the resonant type
H04B 5/79 - Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes for data transfer in combination with power transfer
H02J 50/60 - Circuit arrangements or systems for wireless supply or distribution of electric power responsive to the presence of foreign objects, e.g. detection of living beings
H02J 50/80 - Circuit arrangements or systems for wireless supply or distribution of electric power involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
H02J 50/90 - Circuit arrangements or systems for wireless supply or distribution of electric power involving detection or optimisation of position, e.g. alignment
patents
