Abstract

A PCB magnetic assembly is disclosed and includes a multi-layer circuit board bracket structure and a magnetic component. The multi-layer circuit board bracket structure includes a multi-layer circuit board having an upper surface with an upper connection position and a lower surface with a lower connection position. The multi-layer circuit board includes an upper recess, a lower recess and a support layer. The support layer is an N-layer circuit board located between the upper recess and the lower recess, N≥1, and includes a copper layer and M through holes, M≥2. The copper layer is arranged around the through holes to form a winding, and includes a first terminal electrically connected to the upper connection position, and a second terminal electrically connected to the lower connection position. The magnetic component is arranged in the multi-layer circuit board bracket structure and partially passes through the through holes.

IPC Classes  ?

• H05K 1/02 - Printed circuits Details
• H01F 27/24 - Magnetic cores
• H01F 27/28 - CoilsWindingsConductive connections

Abstract

A power supply and an operating method are provided. A detection circuit detects the input voltage and provides a detection result. A feedback circuit detects the output voltage and the output current and generates a feedback signal. A reference voltage generation circuit generates a reference voltage according to the input voltage and the feedback signal. A control signal generation circuit generates a control signal according to the reference voltage. When the detection circuit detects a duration during which the input voltage is less than a voltage threshold is longer than the time threshold, the reference voltage generation circuit adjusts the reference voltage within a hold-up time according to the detection result, the control signal generation circuit generates the control signal within the hold-up time according to the reference voltage to configure the power conversion circuit to decrease the output current.

IPC Classes  ?

• H02M 1/00 - Details of apparatus for conversion

Abstract

The present disclosure provides a magnetic core assembly fixture and a power module assembly method. The magnetic core assembly fixture includes a first pressing module and a second pressing module. The first pressing module includes a first base plate, first elastic members and latches. The first elastic members are disposed on the first base plate, and configured to abut against the first magnetic cores on a connected-panel structure of a power module. The latches are disposed on the first base plate, and configured to engage with the connected-panel structure. The second pressing module includes a second base plate, second elastic members and latches. The second elastic members are disposed on the second base plate, and configured to abut against the second magnetic cores on the connected-panel structure. The latches are disposed on the second base plate, and configured to engage with first pressing module.

IPC Classes  ?

• H01F 27/06 - Mounting, supporting, or suspending transformers, reactors, or choke coils
• H01F 27/24 - Magnetic cores

Abstract

The present disclosure provides a monitoring method for monitoring a DC bus capacitor, including steps of: in a preset cycle, sampling an input voltage, an input current and an output voltage to obtain an input power; filtering the input power and the output voltage to obtain an AC component of the input power and an AC component of the output voltage; calculating a capacitance according to the DC component of the output voltage, the AC component of the input power and the AC component of the output voltage; obtaining a total weight coefficient corresponding to the capacitance; and outputting a monitoring capacitance of the DC bus capacitor according to the plurality of the capacitance calculated and obtained in a plurality of the preset cycles and the plurality of the total weight coefficients corresponding to the plurality of capacitance.

IPC Classes  ?

• G01R 31/64 - Testing of capacitors
• G01R 27/26 - Measuring inductance or capacitanceMeasuring quality factor, e.g. by using the resonance methodMeasuring loss factorMeasuring dielectric constants

Abstract

A hybrid modular multilevel converter is provided. After the voltage difference is added to the original voltage of each half-bridge submodule or the original voltage of each full-bridge submodule, a compensation voltage is obtained. According to a bridge arm current and a voltage reference value, signals of one type of submodules with the compensation voltage and signals of the other type of submodules with the original voltages are sorted. Consequently, an operating sequence of the plurality of half-bridge submodules and the plurality of full-bridge submodules is acquired. The operating modes of the half-bridge submodules and the full-bridge submodules are calculated according to the original voltages of the half-bridge submodules, the original voltages of the full-bridge submodules, the voltage reference value and the operating sequence. A corresponding driving signal is generated to control the half-bridge submodules and the full-bridge submodules. Consequently, the voltage difference gradually approaches or equals to 0.

IPC Classes  ?

• H02M 7/217 - Conversion of AC power input into DC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
• H02M 1/00 - Details of apparatus for conversion

Abstract

An apparatus includes a heat-dissipating substrate, a power circuit and a magnetic assembly. The heat-dissipating substrate includes a thermal contact surface. The power circuit includes at least one switch element in contact with the thermal contact surface of the heat-dissipating substrate. The magnetic assembly includes at least one first electrical conductor and a magnetic core module comprising at least one hole, wherein the at least one first electrical conductor passes through the at least one hole, and a terminal of the at least one first electrical conductor is electrically connected to the at least one switch element. The heat-dissipating substrate, the power circuit and the magnetic assembly are arranged in sequence along a same direction. A projection of the power circuit on the thermal contact surface partially overlaps a projection of the magnetic assembly on the thermal contact surface.

IPC Classes  ?

• H01F 27/28 - CoilsWindingsConductive connections
• G05F 1/575 - Regulating voltage or current wherein the variable actually regulated by the final control device is DC using semiconductor devices in series with the load as final control devices characterised by the feedback circuit
• G06F 1/183 -
• H01F 17/04 - Fixed inductances of the signal type with magnetic core
• H01F 17/06 - Fixed inductances of the signal type with magnetic core with core substantially closed in itself, e.g. toroid
• H01F 27/02 - Casings
• H01F 27/24 - Magnetic cores
• H01F 27/29 - TerminalsTapping arrangements
• H01R 12/52 - Fixed connections for rigid printed circuits or like structures connecting to other rigid printed circuits or like structures
• H01R 12/58 - Fixed connections for rigid printed circuits or like structures characterised by the terminals terminals for insertion into holes
• H02M 3/00 - Conversion of DC power input into DC power output
• H02M 3/158 - Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators including plural semiconductor devices as final control devices for a single load
• H05K 1/02 - Printed circuits Details
• H05K 1/11 - Printed elements for providing electric connections to or between printed circuits
• H05K 1/14 - Structural association of two or more printed circuits
• H05K 1/16 - Printed circuits incorporating printed electric components, e.g. printed resistor, capacitor, inductor
• H05K 1/181 -
• H05K 1/185 -
• H05K 3/28 - Applying non-metallic protective coatings
• H05K 7/14 - Mounting supporting structure in casing or on frame or rack
• H05K 7/20 - Modifications to facilitate cooling, ventilating, or heating
• H10W 90/00 -

Abstract

A power conversion apparatus includes a plurality of three-phase power modules, a switch matrix, and a controller. Each three-phase power module includes three single-phase AC-to-DC conversion units respectively receiving three AC voltages of a three-phase AC power supply, and converting the three AC voltages to provide a plurality of DC currents. The switch matrix receives the DC currents provided from the three-phase power modules. The controller provides a switch control signal to control the switch matrix to decide an output power provided by the DC currents.

IPC Classes  ?

• H02M 7/217 - Conversion of AC power input into DC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only

Abstract

A magnetic component is disclosed and includes a first magnetic core, a second magnetic core and a coil. The first magnetic core includes a first magnetic cover and a first guiding portion. The second magnetic core includes a second magnetic cover and a second guiding portion. The first magnetic core and the second magnetic core are butted along an axial direction to form a winding column. The first guiding portion is located on the first magnetic cover, and increases a depth embedded into the first magnetic cover. The second guiding portion is located on the second magnetic cover, and increases a depth embedded into the second magnetic cover. The coil is wound on the winding column at a helical angle α relative to the winding column, and includes a first outlet terminal and a second outlet terminal led out along the first guiding portion and the second guiding portion, respectively.

IPC Classes  ?

• H01F 27/30 - Fastening or clamping coils, windings, or parts thereof togetherFastening or mounting coils or windings on core, casing, or other support
• H01F 27/24 - Magnetic cores
• H01F 27/28 - CoilsWindingsConductive connections
• H01F 27/29 - TerminalsTapping arrangements

Abstract

An embodiment of the present application specifically relates to a bobbin and a transformer, and belongs to the technical field of transformers. The bobbin includes a winding reel and at least one pin connection part, the at least one pin connection part is provided on an end face of the winding reel. The pin connection part includes a plurality of connecting through-holes and a first wire-passing groove, each of the connecting through-holes is inserted with a pin. The first wire-passing groove is located between two adjacent connecting through-holes, the first wire-passing groove passes through the pin connection part along a direction of a center line of the winding reel. The partial area of the groove wall of the first wire-passing groove is located in at least one connecting through-hole adjacent the first wire-passing groove to expose the pin.

IPC Classes  ?

• H01F 27/32 - Insulating of coils, windings, or parts thereof
• H01F 27/24 - Magnetic cores
• H01F 27/28 - CoilsWindingsConductive connections

Abstract

A cold plate cooling device is disclosed and includes a vapor chamber, a cooling chamber, an inlet, an outlet and a jet module. The vapor chamber includes a top portion and a bottom portion arranged opposite to each other, and thermally coupled to a heat source and plural heat sink fins. The cooling chamber is arranged on the top portion. The inlet and the outlet are in fluid communication with the cooling chamber, respectively. A coolant enters the cooling chamber through the inlet, exchanges heat with the heat sink fins in the cooling chamber, and then is discharged through the outlet. The jet module includes a through-hole arranged between the inlet and the cooling chamber. A total through-hole area of the through-hole is smaller than a total opening area of the inlet. Thereby, an impingement flow is generated toward the heat sink fins to dissipate heat from the vapor chamber.

IPC Classes  ?

• H05K 7/20 - Modifications to facilitate cooling, ventilating, or heating

Abstract

An LED driver and an operating method thereof are provided. The LED driver includes a conversion circuit, a switch circuit and a control circuit. The positive and negative output terminals of the conversion circuit are electrically coupled to the LED light source through two switches of the switch circuit respectively. After the control circuit receives a light-off command, the control circuit generates the dimming signal to configure the conversion circuit to decrease the output current; and when the control circuit determines that the output current is less than a turn-off current threshold, the control circuit configures the two switches of the switch circuit to be in a non-conduction state.

IPC Classes  ?

• H05B 45/59 - Circuit arrangements for operating light-emitting diodes [LED] responsive to malfunctions or undesirable behaviour of LEDsCircuit arrangements for operating light-emitting diodes [LED] responsive to LED lifeProtective circuits for reducing or suppressing flicker or glow effects
• H05B 45/10 - Controlling the intensity of the light
• H05B 45/325 - Pulse-width modulation [PWM]
• H05B 45/355 - Power factor correction [PFC]Reactive power compensation
• H05B 45/375 - Switched mode power supply [SMPS] using buck topology
• H05B 45/38 - Switched mode power supply [SMPS] using boost topology

Abstract

An AC-AC converter and a power supply system are provided. The AC-AC converter of the present disclosure includes a first AC terminal with two sub terminals, a second AC terminal with three sub terminals, and a first bridge arm with two switch assemblies. The AC-AC converter receives and converts the input power between two wires and three wires. The two switch assemblies are activated, and bidirectional power flow is allowed. The two switch assemblies are performed as a voltage source for supporting both balanced and unbalanced loads. Both active and reactive power are also supported. Moreover, the AC-AC converter of the present disclosure has the advantages of reducing weight, size and cost, and enhancing conversion efficiency.

IPC Classes  ?

• H02M 5/293 - Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into DC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only

Abstract

An integrated magnetic component is disclosed and includes a plurality of PCBs, a transformer and a plurality of inductors. The transformer includes a plurality of primary windings, a plurality of secondary windings, and two pieces of transformer cores. The primary windings and the secondary windings are disposed on the PCBs and wound around the two pieces of transformer cores. The inductors are disposed on the PCBs and connected to the transformer. The primary windings and the secondary windings of the transformer are disposed correspondingly in pairs on one of the PCBs, and the inductors are disposed adjacent to the transformer.

IPC Classes  ?

• H02M 3/00 - Conversion of DC power input into DC power output
• H01F 3/14 - ConstrictionsGaps, e.g. air-gaps
• H01F 27/26 - Fastening parts of the core togetherFastening or mounting the core on casing or support
• H01F 27/28 - CoilsWindingsConductive connections

Abstract

A power module assembly includes a power module, a fixing device and at least one fixing element. The power module includes a housing and a protrusion body disposed on the housing. The fixing device is disposed on the protrusion body and includes at least one fixing portion, a first engaging portion and a second engaging portion, and plural connecting portions. The first engaging portion and the second engaging portion are respectively disposed at two opposite sides of the at least one fixing portion for respectively engaging with two opposite sides of the protrusion body. The plural connecting portions are respectively disposed between the at least one fixing portion and the first engaging portion and the at least one fixing portion and the second engaging portion. The at least one fixing element respectively fixes the at least one fixing portion, so as to fix the power module on an external device.

IPC Classes  ?

• H05K 7/20 - Modifications to facilitate cooling, ventilating, or heating

Abstract

A heat dissipation device (100, 200), comprising a heat dissipation element (110) and a spoiler element (120). The heat dissipation element (110) has a heat dissipation surface (110T). The heat dissipation element (110) comprises a plurality of fin structures (111) located on the heat dissipation surface (110T) and protrude from the heat dissipation surface (110T). The spoiler element is joined to the heat dissipation element (110), wherein the spoiler element (120) has at least one planar part (121) and a plurality of protruding parts (122) connected to the planar part (121), and the protruding parts (122) protrude from the planar part (122) towards the heat dissipation surface (110T).

IPC Classes  ?

• H05K 7/20 - Modifications to facilitate cooling, ventilating, or heating

Goods & Services

Electric fans; ventilating fans; electric air circulation fans; ventilation installations and apparatus; air purifiers; air conditioning installations

Abstract

A heat dissipation assembly is provided that includes a fan and a housing. The housing forms a plurality of joining structures that protrude from the outer surface of the housing, wherein the fan is disposed in the housing, and the joining structures are located in different positions of the housing. The holder is joined to one of the joining structures, thereby affixing the heat dissipation assembly to the body of the vehicle.

IPC Classes  ?

• B60H 1/00 - Heating, cooling or ventilating devices

Abstract

An electronic transformer includes a first forward rectifier, a second forward rectifier, a third forward rectifier and a backward rectifier. The first forward rectifier is coupled between a first-phase power and a first output terminal. The second forward rectifier is coupled between a second-phase power and the first output terminal. The third forward rectifier is coupled between a third-phase power and the first output terminal. The backward rectifier is coupled between a neutral line and a second output terminal. The first forward rectifier, the second forward rectifier, and the third forward rectifier are configured to half-wave rectify the first-phase power, the second-phase power, and the third-phase power to generate rectified first-phase to third-phase power sources, and superimpose the rectified first-phase to third-phase power sources on the first output end to serve as an output voltage of the electronic transformer.

IPC Classes  ?

• H02M 7/217 - Conversion of AC power input into DC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
• H02M 1/42 - Circuits or arrangements for compensating for or adjusting power factor in converters or inverters
• H02M 7/219 - Conversion of AC power input into DC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only in a bridge configuration

Abstract

Provided in the present application is a power supply system. The system comprises a direct-current bus, an AC-DC conversion circuit, a load circuit, an energy storage unit and a partial power conversion circuit. The AC-DC conversion circuit converts an alternating-current voltage into a direct-current bus voltage. When the energy storage unit discharges to the direct-current bus, the partial power conversion circuit directly transmits to the direct-current bus a first part of the electrical energy provided by the energy storage unit, and converts a second part of the electrical energy provided by the energy storage unit and then transmits same to the direct-current bus. When the energy storage unit is charged by the direct-current bus, the partial power conversion circuit directly transmits to the energy storage unit a first part of the electrical energy provided by the direct-current bus, and converts a second part of the electrical energy provided by the direct-current bus and then transmits same to the energy storage unit. In this way, the direct-current bus voltage is kept stable. (FIG. 3A)

IPC Classes  ?

• H02J 3/00 - Circuit arrangements for ac mains or ac distribution networks
• H02J 7/00 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
• H02M 3/10 - Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode

Abstract

A control method for cooling distribution units (CDUs) is disclosed. The control method is applied to a CDU control system having a group at least including a first CDU and a second CDU, and includes the following steps: detecting the second CDU of a resting state; sending a low rotation-speed command to the first CDU and the second CDU to indicate both of the first and second CDUs to operate at a second rotation speed, wherein the second rotation speed is slower than a first rotation speed at which the first CDU currently operated; and, when determining both of the first and second CDUs to be operating at the second rotation speed for a preset time length, sending a target flow command to the first CDU and the second CDU to indicate both of the first and second CDUs to operate and output a target flow of cooling liquid.

IPC Classes  ?

• H05K 7/20 - Modifications to facilitate cooling, ventilating, or heating

Abstract

The present disclosure provides a multi-level, bi-directional AC-DC converter, including a first inductor, a resonant branch having a second inductor and a first capacitor, and at least two pairs of switches arranged in a branch and coupled to the first inductor and the resonant branch, wherein the at least two pairs of switches are coupled to at least one circuit component. In one aspect, the multi-level converter is configured as an N-level, flying capacitor, multi-level converter, wherein N is greater than or equal to 3. A modulation method for the multi-level, bi-directional AC-DC converter includes modulating the inductor current using integrated triangular plus trapezoidal conduction modulation.

IPC Classes  ?

• H02M 1/00 - Details of apparatus for conversion
• H02M 1/14 - Arrangements for reducing ripples from DC input or output
• H02M 1/42 - Circuits or arrangements for compensating for or adjusting power factor in converters or inverters
• H02M 7/797 - Conversion of AC power input into DC power outputConversion of DC power input into AC power output with possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only

Abstract

A DC-DC power supply and control method thereof are provided. The DC-DC power supply includes a transformer, a primary circuit, a secondary circuit and a controller. The transformer includes a primary winding and a secondary winding. The primary circuit is connected with the primary winding and includes a plurality of first primary switches, and a plurality of second primary switches. The secondary circuit is connected with the secondary winding. The controller is configured to alternately control the operation of the first primary switches and the second primary switches for periodically adjusting a turn-off loss difference therebetween.

IPC Classes  ?

• H02M 3/335 - Conversion of DC power input into DC power output with intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate AC using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
• H02M 1/00 - Details of apparatus for conversion
• H02M 3/00 - Conversion of DC power input into DC power output

Abstract

A bulk capacitor pre-charge control method includes providing a power converter coupled between a power source and a bulk capacitor, in a first pre-charge period, activating one switch selected from switches of the first rectifier and the second rectifier to charge the bulk capacitor, in a second pre-charge period following the first pre-charge period, activating two switches selected from the switches of the first rectifier and the second rectifier to charge the bulk capacitor, and in a third pre-charge period following the second pre-charge period, activating three switches selected from the switches of the first rectifier and the second rectifier to charge the bulk capacitor, wherein two of the three switches are synchronized with each other.

IPC Classes  ?

• H02J 7/34 - Parallel operation in networks using both storage and other DC sources, e.g. providing buffering
• H02M 3/335 - Conversion of DC power input into DC power output with intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate AC using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only

Abstract

A power apparatus applied in a solid state transformer structure includes an AC-to-DC conversion unit, a first DC bus, and a plurality of bi-directional DC conversion units. First sides of the bi-directional DC conversion units are coupled to the first DC bus. Second sides of the bi-directional DC conversion units are configured to form at least one second DC bus, and the number of the at least one second DC bus is a bus number. The bi-directional DC conversion units receive a bus voltage of the first DC bus and convert the bus voltage into at least one DC voltage, or the bi-directional DC conversion units receive at least one external DC voltage and convert the at least one external DC voltage into the bus voltage.

IPC Classes  ?

• H02M 3/24 - Conversion of DC power input into DC power output with intermediate conversion into AC by static converters
• H02J 3/38 - Arrangements for parallelly feeding a single network by two or more generators, converters or transformers
• H02J 7/00 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
• H02M 1/00 - Details of apparatus for conversion
• H02M 3/28 - Conversion of DC power input into DC power output with intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate AC

Abstract

The present disclosure provides a package including a die, a first leadframe and a second leadframe. The first leadframe and the second leadframe are stacked and bonded together by using adhering substance to form a final leadframe. The die is bonded to the final leadframe. By using the package of the embodiments, the package includes appropriate signal transmission paths and multi-directional heat dissipation paths.

IPC Classes  ?

• H01L 23/495 - Lead-frames
• H01L 21/48 - Manufacture or treatment of parts, e.g. containers, prior to assembly of the devices, using processes not provided for in a single one of the groups or

Abstract

A lithium-ion secondary battery is provided in the present disclosure, including a positive electrode with a first current collector and a first active material, a negative electrode, a separator between the positive electrode and the negative electrode, a field electrode at one side of the positive electrode opposite to the negative electrode, and a first insulating layer isolated between the positive electrode and the field electrode.

IPC Classes  ?

• H01M 10/42 - Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
• H01M 4/66 - Selection of materials
• H01M 4/74 - Meshes or woven materialExpanded metal
• H01M 10/0525 - Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodesLithium-ion batteries
• H01M 10/0585 - Construction or manufacture of accumulators having only flat construction elements, i.e. flat positive electrodes, flat negative electrodes and flat separators
• H01M 10/44 - Methods for charging or discharging

Abstract

A charging and discharging circuit is provided. By controlling the operations of the switches in a first bridge arm, a second bridge arm, a third bridge arm, a fourth bridge arm and a fifth bridge arm of the power conversion module, controller selectively enables first AC power and/or the first DC power to simultaneously transmit bidirectional energy through the EMI module and the power conversion module. The charging and discharging circuit of the present disclosure can achieve both the charging function and the discharging function by using a single circuit. In addition, the charging and discharging circuit of the present disclosure can provide uninterrupted power in different scenarios to meet multi-purpose needs.

IPC Classes  ?

• 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
• H02M 1/44 - Circuits or arrangements for compensating for electromagnetic interference in converters or inverters

Abstract

A method for manufacturing a magnetic element, including the steps of: step S1, disposing a first vertical winding and a third vertical winding on or in a first circuit board and a second circuit board, respectively, and disposing a second vertical winding and a fourth vertical winding on or in a third circuit board; step S2, sequentially assembling the first circuit board, the first magnetic column, the third circuit board, the second magnetic column, and the second circuit board to form a pre-package; step S3, providing two second bonding layers bonded to an upper surface and a lower surface of the pre-package, respectively; step S4, providing a fourth circuit board and a fifth circuit board bonded to surfaces of the two bonding layers; and step S5, manufacturing a plurality of first conductive vias penetrating the two bonding layers, the fourth circuit board, and the fifth circuit board.

IPC Classes  ?

• H01F 27/30 - Fastening or clamping coils, windings, or parts thereof togetherFastening or mounting coils or windings on core, casing, or other support
• H01F 27/24 - Magnetic cores
• H01F 27/28 - CoilsWindingsConductive connections
• H01F 27/40 - Structural association with built-in electric component, e.g. fuse
• 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
• H05K 1/14 - Structural association of two or more printed circuits
• H05K 3/40 - Forming printed elements for providing electric connections to or between printed circuits

Abstract

An LED driver and an operating method thereof are provided. The LED driver includes conversion circuits and a control circuit. The conversion circuits are configured to be electrically coupled to LED light sources for supplying power. The control circuit is configured to: configure the conversion circuits to generate output currents and output voltages; calculate output powers of the conversion circuits; sum up the output powers of the conversion circuits to obtain a total output power; and when it is determined that the total output power is greater than a power limit, configure at least one of the conversion circuits to reduce at least one of the output currents according to the power limit and according to at least one of the total output power and the output powers of the conversion circuits, so as to reduce the total output power to be less than or equal to the power limit.

IPC Classes  ?

• H05B 45/50 - Circuit arrangements for operating light-emitting diodes [LED] responsive to malfunctions or undesirable behaviour of LEDsCircuit arrangements for operating light-emitting diodes [LED] responsive to LED lifeProtective circuits
• H05B 45/325 - Pulse-width modulation [PWM]
• H05B 45/355 - Power factor correction [PFC]Reactive power compensation
• H05B 45/3725 - Switched mode power supply [SMPS]

Abstract

A power conversion module includes a first bridge arm, a second bridge arm, a transformer and a rectifying circuit. An output positive terminal and an output negative terminal are electrically connected with a low-voltage and high-current load. The first bridge arm and the second bridge arm are electrically connected between an input positive terminal and an input negative terminal. The transformer includes a primary winding, a first secondary winding and a second secondary winding. The two terminals of the primary winding are electrically connected with a midpoint of the first bridge arm and a midpoint of the second bridge arm. An output inductor of the rectifying circuit is electrically connected between the winding midpoint and the output positive terminal. The input voltage is higher than 40V. The output voltage is lower than or equal to 2.2V.

IPC Classes  ?

• H02M 3/335 - Conversion of DC power input into DC power output with intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate AC using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
• H02M 1/00 - Details of apparatus for conversion

Abstract

An adapter with power delivery function includes a power transmission module, a first input connector, and an output connector. The power transmission module includes a bidirectional DC charging and discharging circuit, a bypass circuit, and a control circuit. The control circuit is coupled to the bidirectional DC charging and discharging circuit and the bypass circuit. The first input connector is coupled to the bidirectional DC charging and discharging circuit, the bypass circuit, and the control circuit. The first input connector includes a high voltage level pin, a low voltage level pin, and an identification pin. The output pin is coupled to the bidirectional DC charging and discharging circuit and the bypass circuit. The present disclosure further provides an electric vehicle and a wire with power delivery function.

IPC Classes  ?

• H01R 31/06 - Intermediate parts for linking two coupling parts, e.g. adapter
• B60L 53/16 - Connectors, e.g. plugs or sockets, specially adapted for charging electric vehicles

Abstract

A heat dissipation structure is disposed between two busbars or disposed outside the busbar, so as to dissipate heat from the busbar. In an embodiment, the heat dissipation structure is disposed between two busbars, such that a single heat dissipation structure is used to dissipate heat from two busbars simultaneously, so as to reduce cost of the heat dissipation structure. Furthermore, an insulation member is disposed between the two busbars and/or disposed between the busbar and the heat dissipation structure to achieve electrical insulation.

IPC Classes  ?

• H01B 17/56 - Insulating bodies
• H02B 1/20 - Bus-bar or other wiring layouts, e.g. in cubicles, in switchyards
• H02B 1/56 - CoolingVentilation
• H05K 7/20 - Modifications to facilitate cooling, ventilating, or heating

Abstract

A magnetic component structure with thermal conductive filler, including two magnetic cores combining together to form an inner accommodating space and at least one core opening, two plate portions connect each other through an inner leg structure and two outer leg structures, a bobbin sleeving on the inner leg structure, a coil winding on the bobbin, a bobbin housing surrounding the bobbin and the coil winding and form winding opening facing the at least one core opening, gaps are formed between the encasing structure constituted by the bobbin housing and the bobbin sleeving and the magnetic cores, a thermal conductive filler formed between the bobbin and the bobbin housing and encapsulating at least parts of the coil winding, and a cooling surface contacts the magnetic cores and the thermal conductive filler, the thermal conductive filler extends outwardly to contact the cooling surface through the opening and the winding opening.

IPC Classes  ?

• H01F 27/28 - CoilsWindingsConductive connections
• H01F 27/26 - Fastening parts of the core togetherFastening or mounting the core on casing or support
• H01F 27/30 - Fastening or clamping coils, windings, or parts thereof togetherFastening or mounting coils or windings on core, casing, or other support
• H01F 27/32 - Insulating of coils, windings, or parts thereof

Abstract

The present disclosure provides a magnetic element and a power module. The power module includes: at least one magnetic element and k first switch unit; the magnetic element includes: a magnetic core including a first surface and a second surface arranged oppositely; and n first winding and m second winding arranged in the magnetic core; n is greater than or equal to m; each first winding is arranged adjacent to a second winding; an effective cross-sectional area of each first winding is greater than that of each second winding; each first winding includes a first end for leading out a first pin on the first surface and a second end for leading out a second pin on the second surface; k first switch unit is arranged on the first surface, and each first switch unit is electrically connected to the first pin of the first winding.

IPC Classes  ?

• H01F 38/14 - Inductive couplings
• H01F 3/08 - Cores, yokes or armatures made from powder
• H01F 5/04 - Arrangements of electric connections to coils, e.g. leads
• H01F 27/00 - Details of transformers or inductances, in general
• H01F 27/26 - Fastening parts of the core togetherFastening or mounting the core on casing or support
• H01F 27/40 - Structural association with built-in electric component, e.g. fuse
• H01F 37/00 - Fixed inductances not covered by group

Abstract

A driving circuit includes a driver, a negative voltage generating circuit and a negative voltage control circuit. The driver receives a first control signal and generates a first driving signal. The negative voltage generating circuit includes a first terminal, a second terminal, a first resistor, a first capacitor and a second resistor. A first switching signal is output from the second terminal to control the operation of one part of a plurality of main switches. The negative voltage control circuit includes a diode and an auxiliary switch. When the first control signal is transitioned from a high level state to a low level state, the first switching signal is transitioned from a positive voltage to a negative voltage. Following the dead time, the first switching signal is transitioned from the negative voltage to a zero voltage.

IPC Classes  ?

• H02M 1/088 - Circuits specially adapted for the generation of control voltages for semiconductor devices incorporated in static converters for the simultaneous control of series or parallel connected semiconductor devices
• H02M 3/335 - Conversion of DC power input into DC power output with intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate AC using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only

Abstract

An integrated cold plate cooling device is disclosed and includes a base plate and a cover plate. The base plate includes a top surface, a bottom surface and plural heat dissipation fins. The top surface and the bottom surface are arranged opposite to each other in a first direction, the bottom surface is thermally coupled to plural heat sources, and the plural heat dissipation fins are arranged on the top surface. The cover plate includes an inlet, an outlet and plural turbulence generators. When the cover plate is assembled to the top surface of the base plate along the first direction, plural chambers are formed. The plural chambers are configured to respectively accommodate the plural heat dissipation fins and in communication between the inlet and the outlet. The plural turbulence generators are correspondingly arranged between the plural heat dissipation fins and the inlet.

IPC Classes  ?

• H05K 7/20 - Modifications to facilitate cooling, ventilating, or heating
• H05K 1/02 - Printed circuits Details

Abstract

A multifunctional rack cabinet includes a support rack, an outer door, an electric control box, a first inner door, and a second inner door. The outer door is pivotally connected to an edge of the support rack. The electric control box is connected to the support rack and includes a main switch, at least one control unit, at least one pump switch, at least one sensor interface, and plural electrical components. The first inner door is pivotally connected to an edge of the electric control box and covers the control unit, the pump switch, and the sensor interface, wherein the main switch is at least partially exposed through the first inner door. The second inner door covers the electrical components. The main switch, the control unit, the pump switch, and the sensor interface are at least partially exposed through the second inner door.

IPC Classes  ?

• H05K 7/14 - Mounting supporting structure in casing or on frame or rack

Abstract

The present disclosure discloses an air guide cover and an electronic device. The air guide cover includes a heat conduction member and a first heat dissipation member forming a circumferentially surrounded space; wherein at least a part of the heat conduction member is in contact with a heating element, and the air guide cover dissipates heat of the heating element. The air guide cover of the present disclosure may act as heat sinks of the heating element, and has a large heat dissipation area and strong heat dissipation capability, and the air guide cover also has effect of directing and guiding air from the heat sink.

IPC Classes  ?

• H05K 7/20 - Modifications to facilitate cooling, ventilating, or heating

Abstract

The present disclosure provides an integrally-formed inductor including a magnetic core, a first winding and a second winding, the magnetic core includes a first surface, a second surface, and a side surface; the first winding includes a first longitudinal portion, a second longitudinal portion, and a first connecting portion. The first longitudinal portion extends to the first surface, forming a first pin, and the second longitudinal portion extends to the second surface, forming a second pin, the second winding includes a third longitudinal portion, a fourth longitudinal portion, and a second connecting portion, and the first and second connecting portions extend on planes forming non-zero angles with corresponding longitudinal portion.

IPC Classes  ?

• H01F 27/29 - TerminalsTapping arrangements
• H01F 27/24 - Magnetic cores
• H02M 3/04 - Conversion of DC power input into DC power output without intermediate conversion into AC by static converters

Abstract

An Ethernet power source equipment (PSE) is coupled to a load device, and the Ethernet PSE includes a power supply device, an output control circuit, a path control circuit, and a control module. When the output control circuit detects that the load device is not coupled to an output terminal of the Ethernet PSE, the path control circuit disconnects a power supplying path between the output terminal to the control module, and the output control circuit adjusts an output voltage to a first voltage so that the control module enters a disabled state. When the output control circuit detects that the load device is coupled to the output terminal, the path control circuit short-circuits the power supplying path, and the output control circuit adjusts the output voltage to a second voltage so that the control module enters an enabled state.

IPC Classes  ?

• H04L 12/10 - Current supply arrangements
• H04L 12/40 - Bus networks

Abstract

An electromagnetic brake includes a stator and a rotor. The first bottom is connected between one side of the outer ring portion and one side of the inner ring portion. The first ring concave is formed by the outer ring portion, the inner ring portion and the first bottom. The two coils are disposed within the first ring concave. The friction portion is disposed on one side of the outer casing away from the first bottom. The permanent magnet is disposed around the inner friction element, and disposed between the inner friction element and the outer friction element. The rotor is pivotally connected with the stator and includes an armature. The armature is disposed on one side of the friction portion away from the outer casing. The friction portion and the permanent magnet are disposed between the armature and the outer casing.

IPC Classes  ?

• H02K 49/10 - Dynamo-electric clutchesDynamo-electric brakes of the permanent-magnet type

Abstract

An impeller wheel includes a top ring, a bottom disc, and a plurality of fan blades. The inner edge of the top ring surrounds an air inlet. The top ring has a curved structure. The inner edge of the bottom disc surrounds an opening. The bottom disc has a curved structure. The fan blade has a front edge, a top edge, a rear edge, and a bottom edge. The top edge and the bottom edge are fixed to the top ring and the bottom disc, respectively. The top edge and the top ring define an upper connection line, and the bottom edge and the bottom disc define a lower connection line. When viewed from above, the upper and lower connection lines intersect, and a portion of the fan blade is joined with the upper and lower connection lines so as to form a contour line.

IPC Classes  ?

• F04D 29/28 - Rotors specially adapted for elastic fluids for centrifugal or helico-centrifugal pumps
• F04D 17/06 - Helico-centrifugal pumps
• F04D 29/66 - Combating cavitation, whirls, noise, vibration, or the likeBalancing

Abstract

A magnetic component includes a primary winding, a secondary winding and at least one tertiary winding stacked with each other to form a symmetrical inductance structure or an asymmetrical inductance structure. Through the relationship of the distances between the primary winding, the secondary winding and the at least one tertiary winding of the symmetrical inductance structure, the leakage inductance can be balanced, the tolerance can be stabilized, the reverse current can be eliminated, the AC loss of the tertiary winding can be reduced, and/or the total loss can be reduced. Through the relationship of the distances between the primary winding, the secondary winding and the at least one tertiary winding of the asymmetrical inductance structure, the leakage inductance can be adjusted more flexibly, the tolerance can be stabilized, and the couple energy can be reduced.

IPC Classes  ?

• H01F 27/28 - CoilsWindingsConductive connections
• H01F 27/24 - Magnetic cores

Abstract

A method to form a plurality of inductors in a single process by stacking multiple magnetic sheets, wherein each sheet is made to form a particular part in quantities, which can be a base part, a pillar part, a hollow part, or a cover part, for forming a magnetic body of an inductor.

IPC Classes  ?

• H01F 41/02 - 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
• H01F 1/22 - Magnets or magnetic bodies characterised by the magnetic materials thereforSelection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys in the form of particles, e.g. powder pressed, sintered, or bound together
• H01F 27/255 - Magnetic cores made from particles
• H05K 1/09 - Use of materials for the metallic pattern
• H05K 1/11 - Printed elements for providing electric connections to or between printed circuits
• H05K 1/18 - Printed circuits structurally associated with non-printed electric components
• H05K 3/341 -
• H05K 3/40 - Forming printed elements for providing electric connections to or between printed circuits

Abstract

The present disclosure relates to the technical field of electronic power, and in particular to a server, which includes a data processing apparatus and a first heatsink, the data processing apparatus includes a load group and a power supply module group, the load group includes at least two loads, and the power supply module group supplies power to the loads; the first heatsink is thermally connected to the power supply module group, at least part of a projection of the first heatsink in a first plane is located outside a load region, the first plane is parallel to an upper surface of the load, the load region is a minimum outer contour projection region of the load group that can cover all loads in the first plane.

IPC Classes  ?

• H05K 7/20 - Modifications to facilitate cooling, ventilating, or heating

Abstract

An optical phased array chip includes: a light-emitting unit, configured to generate an optical emission signal; a beam-splitting unit, connected to the light-emitting unit, and configured to transmit the optical emission signal to an optical antenna unit and receive and transmit a diffusely reflected optical return signal to a photodetector unit; the optical antenna unit, connected to the beam-splitting unit, configured to transmit the optical emission signal, and configured to receive and transmit the diffusely reflected optical return signal to the beam-splitting unit; the photodetector unit, connected to the beam-splitting unit, and configured to receive and transmit the diffusely reflected optical return signal to a signal processing unit; and the signal processing unit, connected to the photodetector unit, and configured to receive the diffusely reflected optical return signal in an electric current signal manner converted by the photodetector unit and generate a sensing information.

IPC Classes  ?

• G01S 7/481 - Constructional features, e.g. arrangements of optical elements
• G01S 7/4914 - Detector arrays, e.g. charge-transfer gates
• G02F 1/21 - Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulatingNon-linear optics for the control of the intensity, phase, polarisation or colour by interference
• G02F 1/29 - Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulatingNon-linear optics for the control of the position or the direction of light beams, i.e. deflection

Abstract

A grinding adjusting method of an edge grinding machine, wherein the edge grinding machine includes a grinding carrier placing a sheet material, a grinding wheel, and an image sensing module. The grinding adjusting method includes capturing a sensing image by the image sensing module and detecting a sheet-material part and a grinding-wheel part of the sensing image; computing a first value of the sheet-material part and a second value of the grinding-wheel part; computing an adjusting value according to the first value and the second value; and adjusting a height of the grinding wheel or a height of the grinding carrier by using the adjusting value.

IPC Classes  ?

• B24B 9/08 - Machines or devices designed for grinding edges or bevels on work or for removing burrsAccessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain of glass
• B24B 49/12 - Measuring or gauging equipment for controlling the feed movement of the grinding tool or workArrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation involving optical means

Abstract

A power supply includes a housing, an output voltage control line, a power conversion circuit, an output control circuit, a current detection circuit, a feedback circuit, a coupling circuit and a power conversion control circuit. The power conversion circuit receives an input voltage. The feedback circuit receives a detection voltage signal and a detection current signal to correspondingly generate a control signal. The coupling circuit generates a power conversion control signal based on the control signal. The power conversion control circuit generates a conversion signal based on the power conversion control signal. When the output voltage control line is conducted, the output control circuit sets the power conversion circuit to correspondingly generate a first output voltage. When the output voltage control line is not conducted, the output control circuit sets the power conversion circuit to correspondingly generate a second output voltage.

IPC Classes  ?

• H02M 1/00 - Details of apparatus for conversion
• H02M 7/00 - Conversion of AC power input into DC power outputConversion of DC power input into AC power output
• H02M 7/04 - Conversion of AC power input into DC power output without possibility of reversal by static converters
• H05B 45/37 - Converter circuits

Abstract

An electronic device to calculate input power input to a resonant tank in a resonant circuit includes a bandpass filter, a phase detection circuit, a peak detection circuit, and a processor. The bandpass filter receives a resonant current input to the resonant tank, and filters the resonant current to generate a first baseband current. The phase detection circuit calculates a phase difference between the first baseband current and a resonant tank voltage input to the resonant tank. The peak detection circuit generates a baseband current peak value according to the first baseband current. The processor performs a fast Fourier transform on the resonant tank voltage to obtain a resonant tank baseband voltage. The processor calculates the input power according to the resonant tank baseband voltage, the baseband current peak value, and the phase difference.

IPC Classes  ?

• G01R 21/06 - Arrangements for measuring electric power or power factor by measuring current and voltage
• G01R 25/00 - Arrangements for measuring phase angle between a voltage and a current or between voltages or currents
• H02M 5/458 - Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into DC by static converters using discharge tubes or semiconductor devices to convert the intermediate DC into AC using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only

Abstract

A power supply unit includes a power conversion circuit, an output control circuit, a current detection circuit, a first feedback circuit, a coupling circuit and a power conversion control circuit. The power conversion circuit receives an input voltage. The first feedback circuit receives a first voltage detection signal and a first current detection signal to generate a first control signal. The coupling circuit generates a power conversion control signal based on the first control signal. The power conversion control circuit generates a conversion signal based on the power conversion control signal. When a control terminal of the output control circuit is coupled to a first control voltage, the output control circuit sets the first control signal to generate a first output voltage. When the control terminal is coupled to a second control voltage, the output control circuit sets the first control signal to generate a second output voltage.

IPC Classes  ?

• H05B 45/14 - Controlling the intensity of the light using electrical feedback from LEDs or from LED modules
• H05B 45/34 - Voltage stabilisationMaintaining constant voltage

Abstract

A power supply includes a power converter, a feedback circuit, a control signal generating circuit and a compensating circuit. The power converter generates an output voltage at an output node. The feedback circuit generates a feedback signal according to an output node voltage. The control signal generating circuit provides a control signal to the power converter according to the feedback signal. The compensating circuit includes a reference voltage circuit, a voltage dividing circuit and a switching circuit. When the output node voltage is decreased from the first voltage level to a level threshold or decreased from the first voltage level by an amplitude threshold, the switching circuit is conducted to couple the feedback circuit to the voltage dividing circuit, so the feedback circuit sets the control signal generating circuit to increase a duty cycle of the control signal and/or decrease a frequency of the control signal.

IPC Classes  ?

• H02M 3/156 - Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators
• H02M 1/32 - Means for protecting converters other than by automatic disconnection

Abstract

An IC package structure with connections is provided in the present disclosure, including a die bonded to a leadframe, a plurality of connections bonded to the leadframe, a molding compound formed on the leadframe, a metal layer formed on the molding compound and electrically connecting with the connections, and an electronic component mounted on the metal layer.

IPC Classes  ?

• H01L 23/495 - Lead-frames
• H01L 21/56 - Encapsulations, e.g. encapsulating layers, coatings
• H01L 23/00 - Details of semiconductor or other solid state devices
• H01L 23/31 - Encapsulation, e.g. encapsulating layers, coatings characterised by the arrangement
• H01L 25/16 - Assemblies consisting of a plurality of individual semiconductor or other solid-state devices the devices being of types provided for in two or more different subclasses of , , , , or , e.g. forming hybrid circuits
• H01L 25/18 - Assemblies consisting of a plurality of individual semiconductor or other solid-state devices the devices being of types provided for in two or more different main groups of the same subclass of , , , , or
• H10D 80/30 - Assemblies of multiple devices comprising at least one device covered by this subclass the at least one device being covered by groups , e.g. assemblies comprising integrated circuit processor chips

Abstract

A double-layer antenna, used for an optical phased array chip, the double-layer antenna including: a substrate; a bottom protective layer, disposed above the substrate; a light guide layer, disposed above the bottom protective layer; a grating layer, disposed above the light guide layer, and including a plurality of grating bodies; the grating bodies arranged periodically with a spacing along a first axis of the light guide layer; each of the grating bodies disposed along a second axis of the light guide layer; and a top protective layer, disposed above the light guide layer and the grating bodies. A refractive index of the grating layer and a refractive index of the light guide layer are different.

IPC Classes  ?

• G02B 6/42 - Coupling light guides with opto-electronic elements
• G01S 7/481 - Constructional features, e.g. arrangements of optical elements
• G01S 17/02 - Systems using the reflection of electromagnetic waves other than radio waves

Abstract

The present disclosure provides a bidirectional power supply includes an alternating current (AC) port as a source in a first mode and as a load in a second mode and a line-frequency rectifier/inverter to function as a rectifier in the first mode and a set of switches to function as an inverter in the second mode. A bidirectional resonant converter is coupled to a direct current (DC) port with primary-side switches and secondary-side switches respectively arranged on a primary and secondary side of a transformer. A controller controls the primary-side switches and the secondary-side switches by controlling switching frequency based on a determined value while setting time delay between control of the primary-side and the secondary-side switches to be a predefined time delay or by controlling the time delay between control of the primary-side and the secondary-side switches based on a determined value while setting the switching frequency to be a predefined switching frequency.

IPC Classes  ?

• H02M 1/00 - Details of apparatus for conversion
• H02M 3/00 - Conversion of DC power input into DC power output
• H02M 3/24 - Conversion of DC power input into DC power output with intermediate conversion into AC by static converters
• H02M 3/335 - Conversion of DC power input into DC power output with intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate AC using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
• H02M 7/06 - Conversion of AC power input into DC power output without possibility of reversal by static converters using discharge tubes without control electrode or semiconductor devices without control electrode

Abstract

A phase-control array antenna module capable of suppressing grating lobe gain is provided and includes an array antenna and a beam steering unit. The array antenna includes a plurality of sub-antennas, each of which includes at least one antenna unit. Any two adjacent sub-antenna rows or columns are staggered in the first direction. A phase-shift unit angle is formed between any two adjacent RF signals in the azimuth direction and changes in related to a steering angle of beam according to a microwave radiation field pattern of the array antenna in the azimuth direction. A compensation angle is formed between any two RF signals in an elevation direction from the two adjacent sub-antennas with and without staggering. In the first-phase shift unit angle interval, the compensation angle is a first compensation angle, and in the second phase-shift unit angle interval, the compensation angle is a second compensation angle.

IPC Classes  ?

• H01Q 3/36 - Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elementsArrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the distribution of energy across a radiating aperture varying the phase by electrical means with variable phase-shifters
• H01Q 1/52 - Means for reducing coupling between antennas Means for reducing coupling between an antenna and another structure

Abstract

This disclosure provides a bipolar-independent DC power delivery system. The bipolar-independent DC power delivery system includes a grid-tied power electronic converter, a bipolar DC power busway, and a power conversion unit. The grid-tied power electronic converter connects to a medium-voltage distribution grid and converts the distribution grid voltage to two independent DC voltages with same magnitude and opposite polarities. The bipolar DC power busway connects two independent DC voltages generated from the grid-tied power electronic converter to the power conversion unit. The power conversion unit can receive or send electric power from one or two independent DC voltage(s). The proposed DC power delivery system can continue to operate at de-rated power when one of two independent DC voltages fails.

IPC Classes  ?

• H02J 1/08 - Three-wire systemsSystems having more than three wires
• H02M 1/00 - Details of apparatus for conversion
• H02M 1/44 - Circuits or arrangements for compensating for electromagnetic interference in converters or inverters
• H02M 7/06 - Conversion of AC power input into DC power output without possibility of reversal by static converters using discharge tubes without control electrode or semiconductor devices without control electrode
• H02M 7/08 - Conversion of AC power input into DC power output without possibility of reversal by static converters using discharge tubes without control electrode or semiconductor devices without control electrode arranged for operation in parallel
• H02M 7/217 - Conversion of AC power input into DC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only

Abstract

A magnetic device includes a first conductive structure, a second conductive structure and a magnetic core formed of a powder magnetic material. The first conductive structure includes a first connection part, a first conductive body and a second connection part. The first conductive body is connected between the first connection part and the second connection part. The second conductive structure includes a third connection part, a second conductive body and a fourth connection part. The powder magnetic material, the first conductive structure and the second conductive structure are laminated together. The first conductive structure and the second conductive structure are embedded in the magnetic core. The first connection part and the third connection part are exposed to the fifth surface. The second connection part and the fourth connection part are exposed to the sixth surface.

IPC Classes  ?

• H01F 3/08 - Cores, yokes or armatures made from powder
• H01F 41/02 - 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
• H02M 1/00 - Details of apparatus for conversion

Abstract

A switching module includes at least one substrate, at least one switching element, at least one control loop, a first power part and a second power part. The at least one switching element is disposed on the at least one substrate. The at least one control loop is connected with the corresponding switching element. The first power part is connected with the corresponding switching element. The second power part is connected with the corresponding switching element. A direction of a first current flowing through the first power part and a direction of a second current flowing through the second power part are identical. A projection of the first power part on a reference plane and a projection of the second power part on the reference plane are located at two opposite sides of a projection of the control loop on the reference plane.

IPC Classes  ?

• H02M 3/158 - Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators including plural semiconductor devices as final control devices for a single load
• H02M 1/00 - Details of apparatus for conversion
• H02M 1/44 - Circuits or arrangements for compensating for electromagnetic interference in converters or inverters
• H02M 3/00 - Conversion of DC power input into DC power output

Abstract

A power supply includes a first conversion circuit, a second conversion circuit and a controller. The first conversion circuit receives an input voltage to correspondingly output a first output voltage and an output current. The second conversion circuit receives the first output voltage and the output current to correspondingly output a second output voltage and a load current. The controller controls the first conversion circuit to perform an EMI suppression operation when the first conversion circuit receives a DC voltage. When the first conversion circuit performs the EMI suppression operation and the load current is greater than a preset current and lower than an upper current limit, the controller controls the first conversion circuit to adjust the first output voltage so that a peak-peak value of the first output voltage is not zero as the load current varies between the preset current and the upper current limit.

IPC Classes  ?

• H02M 1/44 - Circuits or arrangements for compensating for electromagnetic interference in converters or inverters
• H02M 3/04 - Conversion of DC power input into DC power output without intermediate conversion into AC by static converters

Abstract

A resonant converter is provided. The detection circuit detects the voltage and/or the current of the output terminal. The controller controls the startup frequency of the two first switches and the two second switches according to the voltage and/or the current of the output terminal detected by the detection circuit. The soft startup procedure is executed. Consequently, the switching stress of the synchronous rectifier circuit is reduced. The resonant converter of the present disclosure has advantage of enhancing lifespan, enhancing efficiency and enhancing stability of the system.

IPC Classes  ?

• H02M 3/00 - Conversion of DC power input into DC power output
• H02M 1/00 - Details of apparatus for conversion
• H02M 1/36 - Means for starting or stopping converters
• H02M 3/335 - Conversion of DC power input into DC power output with intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate AC using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only

Abstract

A low-power signal screw and quick lock compatible structure includes a socket, a motor rear cover, a quick-lock plug and a screw-type plug. The quick-lock plug and the screw-type plug are respectively connected to the socket one to one. The socket is fixed on the motor rear cover which includes a cover body, a fixing base, cantilevers and through holes. The fixing base is connected to the cover body. The socket is reversely fixed in the middle of the fixing base. The cantilevers and the through holes are disposed on two sides of the fixing base. The quick-lock plug is locked on the socket through the cantilevers. The screw-type plug is locked on the socket through the through holes in cooperation with screw nuts. The socket is reversely fixed on the motor rear cover to form an integrated structure. A signal shielding sheet is cast on the motor rear cover.

IPC Classes  ?

• H01R 13/73 - Means for mounting coupling parts to apparatus or structures, e.g. to a wall

Abstract

A power supply module is provided for powering an integrated circuit chip located at a first side of a first carrier board, including: a first-stage power supply unit; and a second-stage power supply unit, where one or more power input terminals of the second-stage power supply unit is electrically connected with one or more corresponding power output terminals of the first-stage power supply unit through a second carrier board; the second carrier board is configured to transmit power from the first-stage power supply unit to the second-stage power supply unit, and the second-stage power supply unit further supplies the power to the integrated circuit chip; one or more power output terminals of the second-stage power supply unit is electrically connected with one or more corresponding power terminals of the integrated circuit chip.

IPC Classes  ?

• H05K 1/02 - Printed circuits Details
• G06F 1/26 - Power supply means, e.g. regulation thereof
• H05K 1/11 - Printed elements for providing electric connections to or between printed circuits
• H05K 1/14 - Structural association of two or more printed circuits
• H05K 1/181 -
• H05K 3/24 - Reinforcing of the conductive pattern
• H05K 7/02 - Arrangements of circuit components or wiring on supporting structure

Abstract

A resonant converter is provided. The resonant converter includes a primary circuit, an integrated transformer, a secondary circuit, a local ground, a first Y capacitor and a second Y capacitor. The primary circuit has a first positive line and a first negative line. The integrated transformer is electrically connected to the primary circuit. The secondary circuit is electrically connected to the integrated transformer and has a second positive line and a second negative line. The first Y capacitor is coupled between the local ground and the first positive line or the first negative line of the primary circuit. The second Y capacitor is coupled between the local ground and the second positive line or the second negative line of the secondary circuit. The first Y capacitor, the second Y capacitor and the local ground are configured to circulate common mode noise currents between the primary circuit and the secondary circuit.

IPC Classes  ?

• H02M 3/00 - Conversion of DC power input into DC power output
• H01F 27/28 - CoilsWindingsConductive connections
• H02M 1/44 - Circuits or arrangements for compensating for electromagnetic interference in converters or inverters
• H02M 3/335 - Conversion of DC power input into DC power output with intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate AC using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only

Abstract

A discharging device includes an energy storage component and a load unit. The energy storage component is charged in a constant-current manner. When a voltage of the energy storage component reaches a reference voltage, the load unit is enabled to discharge the energy storage component to a fixed voltage in a constant-voltage manner.

IPC Classes  ?

• H02J 7/00 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
• H01M 10/44 - Methods for charging or discharging

Abstract

The present invention provides a radome incorporating a circularly polarized metamaterial, including a dielectric carrier and a circularly polarized metamaterial layer attached to or embedded into the dielectric carrier and electrically floating with respect to ground. The circularly polarized metamaterial layer includes a plurality of X-shaped openings arranged in an array and exposing the dielectric carrier, and a first radiation pattern transmits through the circularly polarized metamaterial layer, resulting in a second radiation pattern having enhanced focusing characteristics compared to the first radiation pattern.

IPC Classes  ?

• H01Q 9/04 - Resonant antennas
• H01Q 1/42 - Housings not intimately mechanically associated with radiating elements, e.g. radome
• H01Q 15/00 - Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
• H01Q 21/06 - Arrays of individually energised antenna units similarly polarised and spaced apart

Abstract

A heat dissipation device adapted to a power module includes a first plate body and a second plate body. The first plate body includes a first plate element having a first surface and a second surface opposite to each other, wherein the first surface faces toward a heat source in the power module, and the first plate element includes plural holes penetrating the first surface and the second surface. The second plate body is stacked with the first plate body and includes a second plate element and plural protruding elements. The second plate element includes a third surface and a fourth surface opposite each other, wherein the third surface is adjacent to the second surface, and the plural protruding elements are disposed on the third surface. At least a portion of the plural protruding elements penetrate in the plural holes and contact with the heat source.

IPC Classes  ?

• H05K 1/02 - Printed circuits Details

Abstract

A control method for flying capacitor voltage and multi-level conversion circuit employing same are provided. In the multi-level conversion circuit, all lower switches are connected in series between an inductor and a negative output terminal, and all upper switches are connected in series between the inductor and a positive output terminal. Every flying capacitor is connected between a common connection node of the lower switches and a common connection node of the upper switches. When working in DCM, the control method includes steps of (a) regarding the lower switches and the upper switches as main switches and synchronous rectification switches, and (b) adjusting duty ratios of driving signals of the main switches according to adjustment values corresponding to the flying capacitors connected thereto, and adjusting phase-shift angles between driving signals of any two neighboring main switches according to the acquired adjustment values.

IPC Classes  ?

• H02M 1/00 - Details of apparatus for conversion
• H02M 3/158 - Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators including plural semiconductor devices as final control devices for a single load
• H02M 7/25 - Conversion of AC power input into DC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only arranged for operation in series, e.g. for multiplication of voltage

Abstract

A magnetic element includes a magnetic core assembly and a winding assembly. The magnetic core assembly includes a first magnetic part and a second magnetic part arranged independently. The winding assembly includes a first winding. The first winding is wound around the first magnetic part. Moreover, at least a portion of a substrate is formed as the first winding. The substrate includes a first accommodation space, a second accommodation space and a first metal structure. Moreover, at least a portion of the first metal structure is formed as at least a portion of the first winding. At least a portion of the first magnetic part and at least a portion of the second magnetic part are disposed within the first accommodation space and the second accommodation space, respectively. The substrate has an integral structure.

IPC Classes  ?

• H01F 41/02 - 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
• H01F 27/24 - Magnetic cores
• H01F 27/30 - Fastening or clamping coils, windings, or parts thereof togetherFastening or mounting coils or windings on core, casing, or other support
• H01F 27/32 - Insulating of coils, windings, or parts thereof
• H05K 1/16 - Printed circuits incorporating printed electric components, e.g. printed resistor, capacitor, inductor

Abstract

A fan assembly includes a motor, a frame body, and a fan blade. The frame body has an accommodating space and a first opening. The motor is located in the accommodating space. The fan blade is pivotally connected to the motor. The fan blade is fixed to and rotates with a shaft extending along a direction. The fan blade includes a wheel hub, a plurality of first blades, and a plurality of second blades. A first thickness of the first blades is greater than a second thickness of the second blades, and the wheel hub and the first blades are exposed in the first opening. A top surface of the first blades and a top surface of the frame body are coplanar.

IPC Classes  ?

• F04D 29/38 - Blades
• F04D 29/42 - CasingsConnections for working fluid for radial or helico-centrifugal pumps

Abstract

A system for interactive machine parameters optimization including a database and a processor is disclosed. The database records multiple parameter categories, which are used for quality test. The processor executes following actions: obtaining a batch recommended parameter combinations number; generating at least one parameter combination according to the parameter categories and the batch recommended parameter combinations number; performing at least one stage-testing to a product produced based on the parameter combination to generate a testing result for the parameter combination of each stage-testing, wherein, until current stage reaches a preset testing stage, obtaining another parameter combination satisfied current stage-standard and performing next stage-testing to the product corresponding to the obtained parameter combination; generating an optimized parameter combination when the preset stage is reached and a default termination condition is satisfied; and, when the preset stage is reached but the default termination condition is unsatisfied, repeating the actions.

IPC Classes  ?

• G05B 15/02 - Systems controlled by a computer electric

Abstract

A reducer with a torque sensing structure and a flexible component thereof are disclosed. The flexible component is axially arranged on an output plate of a rotating mechanical device such as a reducer, and includes a flexible body and at least two flexible arms. The flexible body is axially arranged on the output plate. The at least two flexible arms are extended outwardly from the flexible body perpendicular to the axial direction. When the reducer outputs torque through the output plate, the at least two flexible arms are deformed by force, causing the flexible body to form a shifted position difference. By comparing the shifted position difference and a rotational position of the output plate, an output torque value can be calculated to realize the application of the torque sensor.

IPC Classes  ?

• H02K 11/24 - Devices for sensing torque, or actuated thereby
• H02K 11/21 - Devices for sensing speed or position, or actuated thereby

Abstract

A filter inductor, which includes: an outer magnetic core with a window, an inner magnetic core, and a winding. The inner magnetic core includes a first inner magnetic core and a second inner magnetic core which are located at least partially in the window. The winding includes a first winding, a second winding, a third winding and a fourth winding which are wound around the outer magnetic core at intervals. The first inner magnetic core and the second inner magnetic core are stacked. For the first inner magnetic core, a first end is located between the first winding and the second winding, and a second end is located between the third winding and the fourth winding. For the second inner magnetic core, a first end is located between the second winding and the third winding, and a second end is located between the fourth winding and the first winding.

IPC Classes  ?

• H03H 7/01 - Frequency selective two-port networks
• H01F 17/06 - Fixed inductances of the signal type with magnetic core with core substantially closed in itself, e.g. toroid
• H01F 27/24 - Magnetic cores
• H01F 27/28 - CoilsWindingsConductive connections
• H01F 27/38 - Auxiliary core membersAuxiliary coils or windings
• H02J 7/00 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries

Abstract

A filter inductor, which includes: an outer magnetic core with a window, an inner magnetic core, and a winding. The inner magnetic core includes a first inner magnetic core and a second inner magnetic core which are located at least partially in the window. The winding includes a first winding, a second winding, a third winding and a fourth winding which are wound around the outer magnetic core at intervals. The first inner magnetic core and the second inner magnetic core are stacked. For the first inner magnetic core, a first end is located between the first winding and the second winding, and a second end is located between the third winding and the fourth winding. For the second inner magnetic core, a first end is located between the second winding and the third winding, and a second end is located between the fourth winding and the first winding.

IPC Classes  ?

• H03H 7/01 - Frequency selective two-port networks
• H01F 17/06 - Fixed inductances of the signal type with magnetic core with core substantially closed in itself, e.g. toroid
• H01F 27/24 - Magnetic cores
• H01F 27/28 - CoilsWindingsConductive connections
• H01F 27/38 - Auxiliary core membersAuxiliary coils or windings
• H02J 7/00 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries

Abstract

A vehicle charging device and a method applied to the device are disclosed. The device includes a transformer and two impedance tuners. One side of the transformer has two communication wires to couple with an electric vehicle. Each of the two impedance tuners is connected in parallel to one of the two communication wires. The two impedance tuners are configured to regulate reactance characteristics of the two communication wires. Therefore, the impedance of the communication wires can be gradually regulated in response to the signal strength, such that the vehicle charging device and the electric vehicle communicate in a state approaching impedance matching to prevent charging abnormalities caused by an excessively high bit error rate in data exchange.

IPC Classes  ?

• B60L 53/62 - Monitoring or controlling charging stations in response to charging parameters, e.g. current, voltage or electrical charge
• B60L 53/30 - Constructional details of charging stations
• B60L 53/66 - Data transfer between charging stations and vehicles
• B60L 53/68 - Off-site monitoring or control, e.g. remote control

Abstract

A holder for vehicle charging connector includes a base, an accommodating space, a first engaging element and a second engaging element. The accommodating space is disposed within the base for receiving one of a first standard vehicle charging connector and a second standard vehicle charging connector. The accommodating space includes a first passage for receiving the first standard vehicle charging connector, and a second passage for receiving the second standard vehicle charging connector. The second passage is overlapped with the first passage at least in part. The first engaging element is disposed around the first passage for engaging with the first standard vehicle charging connector; and the second engaging element is disposed around the second passage for engaging with the second standard vehicle charging connector.

IPC Classes  ?

• B60L 53/16 - Connectors, e.g. plugs or sockets, specially adapted for charging electric vehicles

Abstract

A tin-based solder paste, a soldering method and an electronic component formed thereby are provided. A copper powder is mixed into the tin-based solder paste, and a weight ratio of the copper powder to an overall metallic powder ranges within 0.2-20%. The electronic component includes a core element, a copper wire and a soldering member. The core element has thereon an electrode terminal. One end of the copper wire is in contact with the electrode terminal. The soldering member covers the one end of the copper wire and the electrode terminal to form the solder joint electrically connecting the copper wire to the electrode terminal, wherein copper-based particles enveloped in an intermetallic compound are dispersed in the soldering member, and the copper-based particles have a particle size of 1-50 μm.

IPC Classes  ?

• H01R 4/02 - Soldered or welded connections
• B23K 1/19 - Soldering, e.g. brazing, or unsoldering taking account of the properties of the materials to be soldered
• B23K 35/00 - Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
• B23K 35/26 - Selection of soldering or welding materials proper with the principal constituent melting at less than 400°C
• H01F 5/04 - Arrangements of electric connections to coils, e.g. leads
• H01R 43/02 - Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for soldered or welded connections

Abstract

A capillary device and a formation method thereof are provided. The capillary device includes a first element, a second element, and a connecting structure. The first element includes a first supporting layer and a first capillary structure disposed on the first supporting layer and including a first metal material. The second element includes a second supporting layer and a second capillary structure disposed on the second supporting layer and including a second metal material. The connecting structure is disposed on the interface between the first capillary structure and the second capillary structure. The connecting structure connects the first capillary structure and the second capillary structure. The connecting structure includes a connecting material that is different from the first metal material and the second metal material.

IPC Classes  ?

• B32B 7/12 - Interconnection of layers using interposed adhesives or interposed materials with bonding properties
• B32B 5/18 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by features of a layer containing foamed or specifically porous material

Abstract

A magnetic assembly includes a magnetic core, four primary windings and four secondary windings. The magnetic core includes four lateral legs. The four primary windings and the corresponding secondary windings are magnetically coupled with each other, and the four primary windings and the corresponding secondary windings are wound on the corresponding lateral legs. The winding directions of the four secondary windings on the corresponding lateral legs are identical. A phase difference between a magnetic flux flowing through a specified lateral leg of the four lateral legs and a magnetic flux flowing through an adjacent lateral leg is any value in the range between 150 degrees and 210 degrees. A phase difference between the magnetic flux flowing through the specified lateral leg and the magnetic flux flowing through another adjacent lateral leg is any value in the range between 60 degrees and 120 degrees.

IPC Classes  ?

• H05K 1/14 - Structural association of two or more printed circuits
• H01F 27/26 - Fastening parts of the core togetherFastening or mounting the core on casing or support
• H01F 27/28 - CoilsWindingsConductive connections
• H01F 27/29 - TerminalsTapping arrangements
• 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
• H05K 1/11 - Printed elements for providing electric connections to or between printed circuits
• H05K 1/16 - Printed circuits incorporating printed electric components, e.g. printed resistor, capacitor, inductor
• H05K 1/18 - Printed circuits structurally associated with non-printed electric components
• H05K 3/34 - Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits by soldering

Abstract

A coupled inductor includes a core assembly, at least two first windings, and a second winding. The core assembly includes a first core and a second core. The first core includes a first base plate, two first non-winding posts, and at least two first winding posts disposed between the two first non-winding posts. The two first non-winding posts and the first winding posts are connected to the first base plate. Each of the first windings is wound around a corresponding first winding post. The second winding covers the at least two first windings. The at least two first windings and the second winding are disposed along a first direction. A first wound direction of the at least two first windings and a second wound direction of the second winding are parallel to each other.

IPC Classes  ?

• H01F 27/24 - Magnetic cores
• H01F 27/28 - CoilsWindingsConductive connections

Abstract

A magnetic component includes a magnetic body, a first winding, a second winding and a magnetic filler. The first winding is disposed in the magnetic body. A first end and a second end of the first winding respectively extend towards a first side and a second side of the magnetic body. The second winding is disposed in the magnetic body. A third end and a fourth end of the second winding extend towards the first side of the magnetic body. The first winding partially covers the second winding. The magnetic filler is filled between the first winding and the second winding.

IPC Classes  ?

• H01F 27/28 - CoilsWindingsConductive connections
• H01F 27/32 - Insulating of coils, windings, or parts thereof
• 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

Abstract

A modular radiator assembly and an air-to-liquid cooling cabinet using the same are disclosed. The radiator assembly includes a housing, a heat exchanger module, two fan sets. The housing includes an air inlet, an air outlet, an upper wall, a lower wall and two lateral walls, and an accommodation space is in communication between the air inlet and the air outlet. The heat exchanger module is connected to the upper wall, the lower wall and the two lateral walls. The heat exchanger module is accommodated in the accommodation space obliquely relative to the lower wall. The two fan sets are connected between the two lateral walls, and disposed adjacent to the air inlet or the air outlet. An airflow generated by the two fan sets is inhaled through the air inlet, flows through the heat exchanger module, and is discharged from the air outlet.

IPC Classes  ?

• H05K 7/20 - Modifications to facilitate cooling, ventilating, or heating

Abstract

A battery connector having a terminal holder, a connecting terminal, a guiding column, a first cover, a second cover, and an elastic member is provided. The connecting terminal is arranged on the terminal holder. The guiding columns is arranged on the terminal holder and formed on two sides of the connecting terminals. The first cover and the second cover accommodate the terminal holder. The second cover has a terminal hole for the connecting terminal outstretching or retracting therein. The elastic member is arranged between the first cover and the second cover. In a disconnected state, the connecting terminal is received within the second cover, at least a portion of the guiding column is exposed outside the second cover. In a connected state, the connecting terminals move along an axial direction of the guiding column to be exposed outside the second cover.

IPC Classes  ?

• H01R 13/629 - Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure
• H01R 13/502 - BasesCases composed of different pieces

Abstract

The present invention provides a magnetic component. The magnetic component includes a magnetic core, at least one winding and at least one insulating and thermal-conducting element. The at least one winding is wound around the magnetic core. The at least one insulating and thermal-conducting element is configured to at least partially encapsulate or be attached and coupled to at least one of the magnetic core and the winding. The insulating and thermal-conducting element is served as a thermal bus path for transferring the heat generated by the magnetic core and/or the winding.

IPC Classes  ?

• H01F 27/22 - Cooling by heat conduction through solid or powdered fillings
• H01F 27/24 - Magnetic cores
• H01F 27/29 - TerminalsTapping arrangements
• H01F 27/32 - Insulating of coils, windings, or parts thereof

Abstract

A vertical power supply system includes a system board, a substrate, a chip unit, a plurality of first capacitors, a plurality of connection boards, a plurality of third capacitors, and a power unit. The system board includes a first surface and a second surface which are opposite to each other. The substrate includes a third surface and a fourth surface which are opposite to each other, and the third surface is located between the fourth surface and the second surface. Each of the connection boards includes a first end, a second end and a side wall. The first end and the second end are opposite to each other. The first end is electrically connected to the second surface of the system board. The second end is electrically connected to the third surface of the substrate. The chip unit is disposed on the first surface.

IPC Classes  ?

• H05K 1/02 - Printed circuits Details
• G06F 1/26 - Power supply means, e.g. regulation thereof
• H05K 1/11 - Printed elements for providing electric connections to or between printed circuits
• H05K 1/14 - Structural association of two or more printed circuits
• H05K 1/18 - Printed circuits structurally associated with non-printed electric components
• H05K 3/24 - Reinforcing of the conductive pattern
• H05K 7/02 - Arrangements of circuit components or wiring on supporting structure

Abstract

A Method of controlling a power system, comprising: determining whether a state of charge of an energy storage system lower than a first threshold value. When the state of charge is lower than the first threshold value, a power generator is activated and determining whether the power generator is abnormal. When the power generator is abnormal, supplying the power to loads by the energy storage system. When the power generator is normal, supplying the power to loads by the power generator. Determine whether the state of charge of the energy storage system is lower than the second threshold value, and reduce a part of loads when the state of charge is lower than the second threshold value.

IPC Classes  ?

• H02J 3/14 - Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load by switching loads on to, or off from, network, e.g. progressively balanced loading
• H02J 3/00 - Circuit arrangements for ac mains or ac distribution networks
• H02J 3/32 - Arrangements for balancing the load in a network by storage of energy using batteries with converting means
• H02J 3/40 - Synchronising a generator for connection to a network or to another generator

Abstract

A waypoint correction device and waypoint correction method are provided. In response to a positioning signal of an unmanned aerial vehicle at a predetermined waypoint, the waypoint correction device obtains a real-time image from the unmanned aerial vehicle. The waypoint correction device calculates a feature point distribution in the real-time image based on the real-time image. The device generates an adjusted viewing angle signal based on the feature point distribution to control the unmanned aerial vehicle to rotate in place based on the adjusted viewing angle signal and capture an adjusted real-time image. The device generates a correction route based on a plurality of three-dimensional feature points, the adjusted real-time image, and a sampling number threshold to control the unmanned aerial vehicle to move from an actual position to a predetermined waypoint based on the correction route.

IPC Classes  ?

• G05D 1/80 - Arrangements for reacting to or preventing system or operator failure
• G05D 1/229 - Command input data, e.g. waypoints
• G05D 1/243 - Means capturing signals occurring naturally from the environment, e.g. ambient optical, acoustic, gravitational or magnetic signals
• G05D 1/246 - Arrangements for determining position or orientation using environment maps, e.g. simultaneous localisation and mapping [SLAM]
• G05D 105/80 - Specific applications of the controlled vehicles for information gathering, e.g. for academic research
• G05D 109/20 - Aircraft, e.g. drones
• G06T 7/73 - Determining position or orientation of objects or cameras using feature-based methods

Abstract

A transformer structure is provided. The transformer structure includes a core unit, a first winding, and a second winding. The first winding is disposed on the core unit and has a first low segment, a first high segment, and a first connecting portion connected between the first low segment and the first high segment. The second winding is accommodated in a gap formed between the first low segment and the first high segment.

IPC Classes  ?

• H01F 27/28 - CoilsWindingsConductive connections
• H01F 19/00 - Fixed transformers or mutual inductances of the signal type
• H01F 27/00 - Details of transformers or inductances, in general
• H01F 27/29 - TerminalsTapping arrangements

Abstract

An unmanned aerial vehicle and method for bridge inspection are provided. The unmanned aerial vehicle identifies a calibration line in an image corresponding to a target bridge. The unmanned aerial vehicle controls the unmanned aerial vehicle to fly along the calibration line to execute a bridge inspection task based on the image including an obscured part and an unobstructed part, and a calibration starting point and a calibration ending point of the calibration line are respectively corresponding to a longitude and latitude coordinate in a real world.

IPC Classes  ?

• G05D 1/648 - Performing a task within a working area or space, e.g. cleaning
• B64U 10/14 - Flying platforms with four distinct rotor axes, e.g. quadcopters
• B64U 20/87 - Mounting of imaging devices, e.g. mounting of gimbals
• B64U 101/26 - UAVs specially adapted for particular uses or applications for manufacturing or servicing for manufacturing, inspections or repairs
• G05D 1/646 - Following a predefined trajectory, e.g. a line marked on the floor or a flight path
• G05D 105/80 - Specific applications of the controlled vehicles for information gathering, e.g. for academic research
• G05D 109/20 - Aircraft, e.g. drones
• G05D 111/10 - Optical signals
• G06V 20/10 - Terrestrial scenes
• G06V 20/17 - Terrestrial scenes taken from planes or by drones
• G08G 5/57 - Navigation or guidance aids for unmanned aircraft

Abstract

An uninterruptible power supply system includes a bidirectional AC-DC converter, a resonant converter, an automatic voltage regulation circuit and a control unit. When an AC input voltage is out of a predetermined voltage range and within a voltage regulation range, the automatic voltage regulation circuit, the resonant converter and the bidirectional AC-DC converter generate an AC supplementary voltage at an output terminal based on the AC input voltage and generate an AC output voltage based on the AC input voltage and the AC supplementary voltage, so that the AC output voltage is within the predetermined voltage range. When the AC input voltage is out of the voltage regulation range, the resonant converter and the bidirectional AC-DC converter generate the AC output voltage at the output terminal based on discharge voltage of a battery, so that the AC output voltage is within the predetermined range.

IPC Classes  ?

• H02J 9/06 - Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over