The present disclosure provides a rectifier module and a transformer, the rectifier module includes a transformer and a rectifier board, the transformer includes: a magnetic core; a first winding; and a second winding, the magnetic core includes a magnetic column, the first winding is arranged on the magnetic column, and the second winding is arranged outside the first winding; comb-type pins are respectively arranged on opposite sides of the second winding, the comb-type pins are arranged along a first direction, and the comb-type pins include comb teeth and comb gaps; the rectifier board includes: a circuit board; and a plurality of switch element groups arranged along the first direction, the switch element group includes at least one switch element; along the second direction, the comb teeth are adjacent to the switch element; the first direction and the second direction are perpendicular to each other.
The present disclosure provides a switching power supply and a control method for a switching power supply, and relates to the technical field of power supply. The method includes: detecting a temperature of a bus capacitor and determining temperature information of the bus capacitor, where an input terminal of a PFC boost circuit is connected to a power source, and the bus capacitor is located at an output terminal of the PFC boost circuit; and adjusting a voltage across the bus capacitor in a preset manner according to the temperature information of the bus capacitor.
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
3.
CONTROL METHOD FOR RESONANT CONVERTER AND RESONANT CONVERTER
The present disclosure provides a control method for a resonant converter and a resonant converter, and relates to the technical field of resonant converters. The resonant converter includes a primary side switch and a corresponding rectification switch, the primary side switch is controlled by a first control signal, the rectification switch is controlled by a second control signal, and the method includes: acquiring a voltage difference value, where the voltage difference value is obtained by subtracting a voltage value of an output voltage of the resonant converter from a reference voltage value; and adjusting a turn-on dead time and/or a turn-off dead time between the first control signal and the second control signal according to the voltage difference value.
H02M 3/00 - Conversion of DC power input into DC power output
H02M 1/38 - Means for preventing simultaneous conduction of switches
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
The present disclosure provides a multi-phase coupled inductor, a multi-phase coupled inductor array and a two-phase inverse coupled inductor. The multi-phase coupled inductor includes a magnetic core having longitudinal middle columns and windings respectively wound around the longitudinal middle columns. A magnetic flux direction of a DC magnetic flux generated by a current flowing through any one of the windings is opposite to a magnetic flux direction of a DC magnetic flux generated by a current flowing through other one of the windings, on the longitudinal middle column corresponding to the other one of the windings.
The present disclosure provides a method for controlling a resonant circuit and a resonant circuit. The resonant circuit to which the method is applicable includes: a primary switching circuit, configured to receive an input voltage; a resonant branch, including a capacitor and an inductor connected in series; a transformer, including a primary winding and a secondary winding, and the resonant branch is connected between the primary switching circuit and the primary winding; and a secondary switching circuit, connected to the secondary winding and configured to provide an output voltage to a load, and the secondary switching circuit includes a synchronous rectifier switch, and the synchronous rectifier switch includes a body diode; the method includes: adjusting, in different working periods, a conduction time of the body diode to cause a switching frequency of the resonant circuit to change.
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
6.
METHOD FOR CONTROLLING POWER ADAPTER AND POWER ADAPTER
The present disclosure provides a method for controlling a power adapter and a power adapter, and relates to the field of power technologies. The method includes: obtaining a real-time value of a bus voltage of the power adapter; matching the real-time value of the bus voltage with N control voltage intervals V1 to VN to obtain a real-time control voltage interval that matches the real-time value of the bus voltage, wherein N≥2, the N control voltage intervals are continuous and incremental from V1 to VN, and the N control voltage intervals V1 to VN correspond to N different output power control values P1 to PN; and adjusting, according to the real-time control voltage interval, an output power command value of the power adapter to an output power control value corresponding to the real-time control voltage interval.
H02M 1/08 - Circuits specially adapted for the generation of control voltages for semiconductor devices incorporated in 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
A converter includes a chopper circuit, including a first resistor and a power switch connected in series; a current detection circuit, including: a first capacitor and an isolation circuit, where an input end of the isolation circuit is connected in series with the first capacitor, an input end of the current detection circuit is connected in parallel to one of the first resistor or the power switch, and the current detection circuit detects a direction of a current flowing through the first capacitor and outputs a current detection signal; a signal conditioning circuit, electrically connected to an output end of the current detection circuit, receiving the current detection signal and outputting a chopper circuit operating state signal; and a controller, electrically connected to the signal conditioning circuit, receiving the chopper circuit operating state signal and determining whether the chopper circuit is in a turned-on state or a turned-off state.
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
A power equipment and an assembling method thereof are disclosed. The power equipment includes an installation cabinet, a plurality of power modules and at least one expansion power module. The installation cabinet includes a top and two lateral sides. The plurality of power modules are electrically connected to the installation cabinet and arranged in an array on the top of the installation cabinet. The plurality of power modules and the installation cabinet are assembled as one main body. The main body and the expansion power module are transported to an installation site, respectively. The at least one expansion power module is detachably disposed on one of the two lateral sides of the installation cabinet and electrically connected to the installation cabinet through the expansion cables reserved in the installation cabinet.
A power equipment is disclosed. The power equipment includes an installation cabinet and a plurality of power modules. The installation cabinet includes a top. The plurality of power modules includes a first set of power modules and a second set of power modules. The first set of power modules is electrically connected to the installation cabinet, arranged adjacent to each other, and detachably disposed on the on the top of the installation cabinet to form a first array. The second set of power modules is electrically connected to the installation cabinet, arranged adjacent to each other, and detachably disposed on the on the top of the installation cabinet to form a second array. The power modules in the first array and the power modules in the second array are arranged back-to-back.
A multi-level conversion circuit and a cycle-by-cycle protection method therefor are provided. The cycle-by-cycle protection method includes steps of: (a) determining main switches and synchronous rectification switches; (b) controlling the main switches to operate in a normal mode; (c) detecting a current flowing through the inductor, and determining whether the current exceeds a threshold; (d) when the current exceeds the threshold, defining the main switch in an on state and having shortest turn-on duration as a target main switch, switching the target main switch to a current limiting mode for turning it off; and (e) after switching the target main switch to the current limiting mode, if the current is lower than the threshold, at a moment when a falling edge of control signals in a reference mode for the main switches first appears, switching the target main switch to a state in the reference mode corresponding to the moment.
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
The present application provides a power module, including a first side plate, a second side plate, and an insulating board. The insulating board includes a flat plate portion, at least one protrusion portion, and at least one connecting bridge, the flat plate portion is parallel to a plane formed by a first direction and a second direction; at least one of the protrusion portion and the connecting bridge protrudes along a third direction to form an insulation cavity; the insulating board, the first side plate, and the second side plate in combination form a first accommodating space and a second accommodating space along the third direction, the first accommodating space is provided with a first power device, and the second accommodating space is provided with a second power device; and a transformer, including a magnetic core and a winding wound on the magnetic core.
The present disclosure relates to a power conversion module, a control method, and a power conversion system. An interconnecting branch is connected between a first power unit and a second power unit. The interconnecting branch includes a resonant capacitor and a switching unit that are electrically connected. The resonant inductor is connected between the midpoint of a first bridge arm and the midpoint of a second bridge arm, or in series with the resonant capacitor. In the present disclosure, by controlling the on and off of the interconnecting branch, a current opposite to the power grid current is generated on the branch connecting the first bridge arm and the second bridge arm, thereby realizing the soft switching of the switching transistors of the power conversion module.
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
A transformer includes a winding frame, a first magnetic core, a second magnetic core, and a winding. The winding frame includes two side walls along a first direction and a bottom wall. Along a second direction, both sides of the bottom wall are each provided with a stop plate. A length of the stop plate in a third direction is less than a length of each of the two side walls in the third direction. The bottom wall, the two side walls and the two stop plates together around form a mounting part. The first magnetic core is at least partially located in the mounting part. The winding is wound on an outer side of the first magnetic core, the bottom wall and the two stop plates. The second magnetic core, outside of the winding, is provided covering part of the winding, and is connected to the first magnetic core.
A multi-level conversion circuit and a cycle-by-cycle protection method therefor are provided. The cycle-by-cycle protection method includes steps of: (a) determining main switches and synchronous rectification switches; (b) controlling the main switches to operate in a normal mode; (c) detecting a current flowing through the inductor, and determining whether the current exceeds a threshold; (d) when the current exceeds the threshold, defining the main switch in an on state as a target main switch, switching the target main switch to a current limiting mode for turning off the target main switch; and (e) after the target main switch is switched to the current limiting mode, if the current is lower than the threshold, at a moment when a falling edge of control signals in a reference mode for the main switches first appears, switching the target main switch to a state in the reference mode corresponding to the moment.
A multi-level conversion circuit and a cycle-by-cycle protection method therefor are provided. The cycle-by-cycle protection method includes steps of: (a) determining main switches and synchronous rectification switches; (b) controlling the main switches to operate in a normal mode; (c) detecting a current flowing through the inductor, and determining whether the current exceeds a threshold; (d) when the current exceeds the threshold, defining the main switch in an on state and having longest turn-on duration as a target main switch, switching the target main switch to a current limiting mode; and (e) after the target main switch is switched to the current limiting mode, if the current is lower than the threshold, at a moment when a rising edge of a control signal in a reference mode for the target main switch firstly appears, switching the target main switch to a state in the reference mode corresponding to the moment.
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
16.
POWER CONVERSION SYSTEM AND CONTROL METHOD THEREOF
The disclosure discloses a power conversion system and a control method, the control method includes: providing a power conversion module which includes a damping circuit and a first capacitor connected in series, and a controller, wherein the damping circuit includes a first inductor, a first switch, a second switch, and a second capacitor; obtaining a first current reference value according to an input voltage of the power conversion module, a voltage of the second capacitor, and a voltage reference value; obtaining a second current reference value according to the input voltage of the power conversion module and a current signal related to an input current; and outputting a driving signal according to an inductor current flowing through the first inductor and an inductor current reference value, wherein the current reference value is obtained according to the first current reference value and the second current reference value.
H02M 1/12 - Arrangements for reducing harmonics from AC input or 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
17.
NON-ISOLATED DC/DC POWER CONVERTER AND POWER CONVERSION APPARATUS
The invention discloses a non-isolated DC/DC power converter and a power conversion apparatus. The non-isolated DC/DC power converter comprises a power module comprising a first power conversion circuit, the first power conversion circuit being a non-isolated DC/DC conversion circuit, a first output end of the first power conversion circuit is connected with a first inductor, and a second output end of the first power conversion circuit is connected with a second inductor; and an oscillation suppression module comprising a second power conversion circuit, a first terminal of the second power conversion circuit coupled in parallel to an input end of the first power conversion circuit, a first terminal current of the second power conversion circuit being in phase with at least partial of AC components of an input voltage of the oscillation suppression module, and the second power conversion circuit being a bidirectional DC/DC conversion circuit.
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 1/15 - Arrangements for reducing ripples from DC input or output using active elements
The present disclosure discloses a medium-voltage input DC power supply system, comprising a phase-shifting transformer including a plurality of secondary windings; at least one power conversion unit, each including at least one power conversion module, and each power conversion module including: a rectifier unit having an input terminal connected to one of the plurality of secondary windings; at least one DC conversion unit connected to an output terminal of the rectifier unit, each DC conversion unit comprising: a first power conversion circuit, which is a single-stage DC conversion circuit; and a second power conversion circuit connected in parallel to an input terminal of the first power conversion circuit to suppress current oscillation at the input terminal of the first power conversion circuit; wherein each of the secondary windings is connected to one corresponding power conversion unit.
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
The present disclosure relates to a hot-plug protection method and a power supply device. The method includes, when the connection status between the power supply device and the to-be-charged device is detected as disconnected through the detection pin, turning off a switch assembly within a first time period, where the switch assembly is connected in series between the voltage converter of the power supply device and the connection port, and maintaining an output voltage of the voltage converter at a first level within a second time period, the first time period being shorter than the second time period.
H02H 3/12 - Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition, with or without subsequent reconnection responsive to underload or no-load
H02H 1/00 - Details of emergency protective circuit arrangements
A power supply system includes a system board, a load and a power module, the power module includes a first package and a second package provided on an upper side of the system board; and a bridge member provided on upper sides of the first package and the second package, wherein vertical projections of the first package and the second package on the system board are both overlapped with a vertical projection of the bridge member on the system board, wherein the first package and the load are configured to be provided on an upper surface of the system board, the second package is stacked on an upper side of the load, and the bridge member is stacked on upper sides of the first package and the second package.
H01L 25/10 - Assemblies consisting of a plurality of individual semiconductor or other solid-state devices all the devices being of a type provided for in a single subclass of subclasses , , , , or , e.g. assemblies of rectifier diodes the devices having separate containers
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 23/367 - Cooling facilitated by shape of device
H01L 23/538 - Arrangements for conducting electric current within the device in operation from one component to another the interconnection structure between a plurality of semiconductor chips being formed on, or in, insulating substrates
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 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
The present application provides an insulation structure and an electronic device, where the insulation structure includes a first substrate, a first conductive body, and a first groove, the first substrate includes a first surface and a second surface oppositely disposed; the first conductive body is disposed on the first surface or second surface; the first groove is located on a same surface as the first conductive body and adjacent to the first conductive body; a surface of the first groove is provided with a first conductive layer, and the first conductive layer is electrically connected with the first conductive body. The insulation structure of the present application slows down the trend of potential line changes at the end of the first conductive body, reduces the electric field strength here, and improves the reliability of insulation.
The invention discloses a method and device for detecting and locating insulation state of a conversion system, the conversion system including: a converter module including n conversion units, where n≥2, each conversion unit including a transformer including a first winding and a second winding; and a connection element connected between the first winding and the second winding of the transformer; the method for detecting and locating insulation state including comparing a value reflecting a current flowing the connection element before change of the state of at least one switch with a value reflecting the current flowing the connection element after change of the state of the at least one switch, and determining which of the n conversion units has insulation abnormality based on comparison result.
A magnetic component assembly and a manufacturing method thereof are disclosed. The magnetic component assembly includes a magnetic component and a peripheral structure. The magnetic component includes a magnetic core and a winding. The winding is embedded in the magnetic core, and passes through the top surface or the bottom surface of the magnetic core to form a pin. The peripheral structure is disposed adjacent to a peripheral side of the magnetic core. The magnetic component and the peripheral structure are combined to form a magnetic assembling body. The manufacturing method thereof includes a step of thinning the top surface or the bottom surface of the magnetic assembling body through a thinning process. The manufacturing method thereof includes another step of thinning the top surface or the bottom surface of the magnetic core through a thinning process, or thinning the pin through the thinning process.
H01F 27/00 - Details of transformers or inductances, in general
H01F 41/00 - Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformersApparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
H01F 41/02 - 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
The disclosure provides a chain-link converter, comprising: a first node; a second node; and a plurality of switch submodules, wherein the plurality of switch submodules are connected in series, and the plurality of switch submodules are electrically connected between the first node and the second node, and a switching time of at least one switch submodule is greater than the switching time of other switch submodules. The chain-link converter of the disclosure effectively suppresses the common-mode current by extending the switching time of at least one switch submodule.
H02M 1/14 - Arrangements for reducing ripples from DC input or output
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
A power chip, includes a metal region; a wafer region. The wafer region includes at least one first partition, forming a first power switch; and at least one second partition, forming a second power switch. The first power switch and the second power switch are electrically connected, a total number of the at least one first partition and the at least one second partition is not less than 3, and the at least one first partition and the at least one second partition are disposed alternatively along a curve.
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
H01L 27/00 - Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
H01L 27/12 - Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including integrated passive circuit elements with at least one potential-jump barrier or surface barrier the substrate being other than a semiconductor body, e.g. an insulating body
H01L 29/00 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details of semiconductor bodies or of electrodes thereof
H01L 29/24 - Semiconductor bodies characterised by the materials of which they are formed including, apart from doping materials or other impurities, only inorganic semiconductor materials not provided for in groups , , or
H01L 29/74 - Thyristor-type devices, e.g. having four-zone regenerative action
H01L 29/749 - Thyristor-type devices, e.g. having four-zone regenerative action with turn-on by field effect
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
27.
POWER CONVERSION SYSTEM AND POWER CONVERSION MODULE
A power conversion system, including a first module which includes a first switching circuit, a first auxiliary power supply unit, a first capacitor and a second capacitor, a second module which includes a second switching circuit, a second auxiliary power supply unit, a third capacitor and a fourth capacitor, and a first diode. The first switching circuit is in parallel with the second capacitor, the first auxiliary power supply unit is in parallel with the first capacitor, the first capacitor is connected to the first switching circuit; the second switching circuit is in parallel with the fourth capacitor, the second auxiliary power supply unit is in parallel with the third capacitor, the third capacitor is connected to the second switching circuit; and the first switching circuit is in series with the second switching circuit, and the first diode are connected to the first capacitor and the third capacitor.
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
H02J 7/06 - Regulation of the charging current or voltage using discharge tubes or semiconductor devices
H02J 7/34 - Parallel operation in networks using both storage and other DC sources, e.g. providing buffering
28.
POWER MODULE, POWER SUPPLY SYSTEM AND MULTI-PHASE INVERSE-COUPLED INDUCTOR
The present disclosure relates to a power supply system including a power module. The power module includes an inverse-coupled inductor and a plurality of half-bridge modules. The inverse-coupled inductor includes: a plurality of windings and a magnetic core. The plurality of windings are linear windings between a first plane and a second plane. The first magnetic core and the second magnetic core are located at both ends of each of the windings, the magnetic core pillars connect the first magnetic core and the second magnetic core to form a plurality of magnetic core units, and the plurality of magnetic core units surround corresponding windings in a same direction from the first plane to the second plane. Projections of the plurality of magnetic core units on the first plane form a plurality of closed areas.
The present disclosure relates to a multi-phase inverse-coupled inductor. The multi-phase inverse-coupled inductor includes two windings and a magnetic core. The magnetic core includes a first magnetic core, a second magnetic core, and a plurality of magnetic core pillars. The first magnetic core and the second magnetic core are located at both ends of each of the windings, respectively; the magnetic core pillars connect the first magnetic core and the second magnetic core to form two magnetic core units, and the magnetic core units are disposed to be in a one-to-one correspondence with the windings.
The present disclosure provides an on-board charger. The on-board charger includes a housing, a connection channel, a circuit board assembly, and a plurality of electronic components. The housing includes an accommodation space. The accommodation space includes a heat dissipating area, the heat dissipating area includes an upper layer, a fluid channel layer, and a lower layer. A fluid channel is formed inside the fluid channel layer. The connection channel is in communication with the first fluid channel. The circuit board assembly includes an upper substrate and a lower substrate. A part of the upper substrate is disposed in the upper layer, and a part of the first lower substrate is disposed in the first lower layer. The plurality of electronic components are disposed corresponding to the circuit board assembly.
The present disclosure provides a data processing device. The data processing device includes a carrier board, a data processor, a power module, a first heat sink, and a heat transfer plate. The data processor is provided above the carrier board. The power module is provided below the carrier board and supplies power to the data processor through the carrier board. The first heat sink is provided above the carrier board. The heat transfer plate includes a main body portion and a first extension. The main body portion is provided below the power module. The first extension portion extends upward from the main body portion and is connected to the first heat sink.
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
H05K 7/20 - Modifications to facilitate cooling, ventilating, or heating
A shielding-type insulation detection structure includes an input power source, a first shielding layer, a second shielding layer, a first impedance unit, a second impedance unit and a detection circuit. The first shielding layer is electrically connected with a first terminal of the input power source. The second shielding layer includes a first sub-layer and a second sub-layer. The insulation layer is disposed between the first shielding layer and the second shielding layer. The first impedance unit is electrically connected between the first sub-layer and a second terminal of the input power source. The second impedance unit is electrically connected between the second sub-layer and the second terminal of the input power source. The detection circuit is used to detect a detection signal related to a voltage difference between the first sub-layer and the second sub-layer of the second shielding layer.
The present disclosure provides a pulse width modulation method, which is applied to a bridge circuit, comprising: configuring a first driving mode and a second driving mode of the pulse width modulation of the bridge circuit, wherein losses of the same switch of the bridge circuit in the first driving mode and the second driving mode are reversed; in a first time window, controlling the bridge circuit to operate in the first driving mode, wherein the first time window is M switching cycles, and M is a positive integer; and in a second time window, controlling the bridge circuit to operate in the second driving mode, wherein the second time window is N switching cycles, N is a positive integer, and the pulse width modulation process of the bridge circuit is divided into the first time window and the second time window that are alternated cyclically.
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 1/08 - Circuits specially adapted for the generation of control voltages for semiconductor devices incorporated in static converters
H02M 3/00 - Conversion of DC power input into DC power output
A driving circuit for driving a switch element, which includes a control terminal, a first power terminal and a second power terminal. The second power terminal receives a first voltage. The driving circuit includes a switching circuit, a first unidirectional switch and a first capacitor. The switching circuit receives a first signal. The switching circuit is electrically connected with a first voltage terminal and a ground terminal. The first voltage terminal receives a second voltage. A voltage at the output terminal is switched between the second voltage and a ground voltage. A first terminal of the first unidirectional switch receives a third voltage. A first terminal of the first capacitor is connected with the output terminal of the switching circuit. A second terminal of the first capacitor is connected with a second terminal of the first unidirectional switch and the control terminal of the first switch element.
H03K 17/30 - Modifications for providing a predetermined threshold before switching
H03K 17/06 - Modifications for ensuring a fully conducting state
H03K 17/687 - Electronic switching or gating, i.e. not by contact-making and -breaking characterised by the use of specified components by the use, as active elements, of semiconductor devices the devices being field-effect transistors
The disclosure provides a power system comprising: a first converter comprising a first port electrically connected to the first port of a first power device, a second port electrically connected to the third port, and a third port electrically connected to the fourth port; a second converter comprising a first port electrically connected to the second port of the first power device, a second port electrically connected to the third port, and a third port electrically connected to the fourth port; a third converter comprising a first port electrically connected to the first port of a second power device, a second port electrically connected to the third port, and a third port electrically connected to the fourth port; a fourth converter comprising a first port electrically connected to the second port, a second port electrically connected to the third port, and a third port electrically connected to the fourth port.
The disclosure provides a method and a system for warming-up an electrolytic capacitor. The method comprises: providing a power factor correction circuit comprising an AC terminal, a DC terminal and the electrolytic capacitor, wherein the DC terminal is connected in parallel to the electrolytic capacitor; determining whether it is necessary to perform a warm-up operation on the electrolytic capacitor; when it is determined to be necessary, generating a ripple current on the electrolytic capacitor by controlling an input current to flow into the AC terminal of the power factor correction circuit; and when the warmed-up state of the power factor correction circuit that is generated based on the ripple current matches a specified warmed-up exit condition, terminating the warm-up operation performed on the electrolytic capacitor.
The application discloses a power supply device and an overcurrent alarm method. The power supply device provides power to a load system and includes: a current sampling module for obtaining a current sampling value; a first comparison module for comparing the current sampling value with an alarm current reference value to obtain a first output value; and a control module for determining whether to send a current alarm signal to the load system based on the first output value, wherein when the current sampling value is greater than or equal to the alarm current reference value, the control module sends the current alarm signal and provides a warning notification to the load system; when the current sampling value is less than the alarm current reference value, the control module does not send the current alarm signal, or the control module sends a current non-alarm signal.
H02H 3/08 - Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition, with or without subsequent reconnection responsive to excess current
H02H 3/04 - Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition, with or without subsequent reconnection Details with warning or supervision in addition to disconnection, e.g. for indicating that protective apparatus has functioned
38.
MULTI-PHASE COUPLED INDUCTOR AND MANUFACTURING METHOD THEREOF
A multi-phase coupled inductor includes at least three windings between a first plane and a second plane and a magnetic core that includes a first magnetic core, a second magnetic core and at least three magnetic core pillars, the first and second magnetic cores are respectively located at two ends of the windings, the magnetic core pillars connect the first and second magnetic cores and form at least three magnetic core units together with the first and second magnetic cores. The magnetic core units and the windings are arranged correspondingly on a one-to-one basis, the magnetic core units surround the corresponding windings and extend from the first plane to the second plane in a same direction, and projections of the at least three magnetic core units on the first plane enclose at least three enclosed areas which correspond to the windings on a one-to-one basis.
H01F 27/30 - Fastening or clamping coils, windings, or parts thereof togetherFastening or mounting coils or windings on core, casing, or other support
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
A transformer module and a power module are provided. The transformer module includes: a magnetic core, a first winding and a second winding. The magnetic core includes at least one magnetic column at least partially covered by a multi-layer carrier including a plurality of horizontal copper foils and connecting copper foils. Horizontal copper foils are located on horizontal wiring layers, and connecting copper foils are disposed to connect horizontal copper foils. First and second windings surround the magnetic column, and the second winding is located outside the first winding. Both the first and second windings are formed by a horizontal copper foil and a connecting copper foil; two ends of the first winding are electrically connected to first and second surface-mounted pins; two ends of the second winding are electrically connected to third and fourth surface-mounted pins; these pins are disposed on at least one surface of the transformer module.
H01F 27/32 - Insulating of coils, windings, or parts thereof
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
40.
CASCADED POWER CONVERSION SYSTEM AND POWER DISTRIBUTION METHOD THEREOF
A cascaded power conversion system is used for receiving an AC input power having an AC input voltage. The cascaded power conversion system includes N power conversion modules. Each of the N power conversion modules includes an AC/DC conversion unit, a DC bus and a DC/DC conversion unit. In every ¼ period of the AC input voltage, the DC/DC conversion units of the N power conversion modules are operated in a bypass mode, a boost mode and a hold mode, and a total voltage of DC bus voltages of the N power conversion modules are changed in a consecutive manner.
Provided is a power element assembly structure, including a main board, a first heat sink, a second heat sink, an insulating support, a power element, an insulating thermally conductive layer, and a fixture; where a first end of the insulating support is connected to the main board, a second end of the insulating support is connected to a bottom surface of the first heat sink, and there is a distance between the first heat sink and the main board, a top surface of the first heat sink is connected to the second heat sink; and the insulating thermally conductive layer is attached to a lateral surface of the first heat sink, the power element is attached to the insulating thermally conductive layer, and is fixed to the first heat sink by the fixture, and the power element is plugged on the main board.
A two-stage converter and a control method thereof are provided. The two-stage converter includes a first stage conversion unit, a capacitor unit and a second stage conversion unit. The first stage conversion unit receives a first power and converts the first power into a second power. The capacitor unit is electrically connected to the first stage conversion unit to receive the second power. The second stage conversion unit is electrically connected to the capacitor unit to receive a power transmitted by the capacitor unit. The first stage conversion unit receives a switch signal which has a switching cycle. In at least one said switching cycle, the two-stage converter performs a first control mode in which an operation state of the second stage conversion unit is adjusted according to an operation state of the first stage conversion unit.
H02M 1/14 - Arrangements for reducing ripples from DC input or output
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 7/217 - 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
The disclosure provides a magnetic core structure including at least one magnetic core assembly, wherein the at least one magnetic core assembly includes at least two magnetic blocks spliced with each other, the magnetic core assembly has a cross section along a normal direction of a magnetic flux, and a splicing seam between the at least two magnetic blocks on the cross section is at least partially bent or curved. The magnetic core structure provided in the disclosure reduces eddy-current loss within the magnetic core, and simplifies the assembly process of the magnetic core and the windings.
The disclosure discloses a power supply system and a power supply method. The power supply system includes a first sub-system including at least two first power supply devices and a first load, the first power supply devices for powering the first load; a second sub-system including a second power supply device and a second load, the second power supply device for powering the second load; and a connection unit configured to control electrical connection or electrical disconnection between the first power supply devices and the second load; wherein power supply availability of the first sub-system is higher than power supply availability of the second sub-system. The disclosure provides more power supply availabilities through few types of power supply structures, which facilitates application scenarios such as data center to flexibly adjust the power supply structures according to business, and save cost.
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
H02J 3/06 - Controlling transfer of power between connected networksControlling sharing of load between connected networks
The invention discloses a power conversion circuit and a power supply device. The power conversion circuit is applied to a power supply device, comprising: an AC/DC conversion circuit, wherein a DC side of the AC/DC conversion circuit has a first reference potential point; a first common-mode inductor; a DC/DC conversion circuit including a primary circuit having a second reference potential point, a secondary circuit and a transformer; wherein a first terminal of the first common-mode inductor is connected to the DC side of the AC/DC conversion circuit, and a second terminal of the first common-mode inductor is connected to the primary circuit of the DC/DC conversion circuit; the first reference potential point or the second reference potential point is connected to an electric field shield.
H02M 1/42 - Circuits or arrangements for compensating for or adjusting power factor in converters or inverters
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
The present disclosure provides a system of monitoring fuses of a power conversion device. The power conversion device includes a first port, a first fuse and a converter. The first fuse is electrically coupled to the first port and a first safety circuit. The converter includes a first power terminal and a second fuse, and the second fuse is electrically coupled to the first port and the first power terminal. The system includes a first detection circuit and a second detection circuit. The first detection circuit is electrically coupled to the first fuse for detecting a first electrical signal. The second detection circuit is electrically coupled to the second fuse for detecting a second electrical signal.
The battery energy storage system comprising: a bus connection portion comprising a positive bus connection end and a negative bus connection end; a first battery pack comprising a plurality of single batteries connected in series or in parallel; an output capacitor is connected in series to the first battery pack, the output capacitor and the first battery pack are connected between the positive bus connection end and the negative bus connection end; a H-bridge circuit having an output end connected to the output capacitor; a first isolated DC/DC conversion circuit having an input end electrically connected to the first battery pack, an output end electrically connected to an input end of the H-bridge circuit; a first relay electrically connected between the first battery pack and the input end of the first isolated DC/DC conversion circuit, when the first isolated DC/DC conversion circuit has fault, the first relay is disconnected.
H02M 3/00 - Conversion of DC power input into DC power output
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
A control circuit for a resonant conversion circuit is provided. The resonant conversion circuit includes a switching circuit, a resonant network and a rectifier circuit. Firstly, a starting point of an operating trajectory with a plurality of trajectory segments is determined according to a sampling data sampled at a first switching time point. Then, the starting point of each trajectory segment is determined. The operating mode is determined according to the starting point of the corresponding trajectory segment, and a curve and an end point of the trajectory segment are predicted according to the operating mode. Then, the duration time of each trajectory segment is calculated. The end point of the operating trajectory is determined according to a control instruction. According to the execution time between the starting point and the end point of the operating trajectory, a next switching time point is controlled.
H02M 3/00 - Conversion of DC power input into DC power output
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
A magnetic component assembly is disclosed and includes a magnetic component, a plastic frame and an insulation tape. The magnetic component includes at least one adjacent side. The plastic frame includes an accommodation space, at least one window and at least one through opening. The magnetic component is accommodated in the accommodation space, the at least one window is spatially corresponding to the at least one adjacent side of the magnetic component, and the at least one through opening is in communication with the accommodation space. The insulation tape is attached to the plastic frame, covers the at least one window, and shields the at least one adjacent side of the magnetic component.
The disclosure discloses a DC bias suppression method and a high-frequency power conversion circuit using the same. The high-frequency power conversion circuit includes a high-frequency AC port, a switching circuit, a DC port and a power source connected sequentially, and the DC bias suppression method includes: acquiring voltage information or current information of the DC port at N times, where N≥2; obtaining a corresponding first voltage difference or a corresponding first current difference according to the voltage information or the current information at the N times; regulating a duty ratio of a driving signal according to the first voltage difference or the first current difference; and regulating duty ratios of switching tubes in the switching circuit according to the driving signal.
H02M 3/00 - Conversion of DC power input into DC power output
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
51.
INTERACTION SYSTEM BETWEEN ELECTRIC VEHICLE AND POWER GRID
The application provides an interaction system between an electric vehicle and a power grid, including the electric vehicle including: a battery, and an on board charger including a bidirectional power conversion circuit connected to the battery and an on board charger controller; an electric vehicle supply equipment including: a charge and discharge connection device including a first contactor connected between the power grid and the bidirectional power conversion circuit; and an interaction communication system including: an electric vehicle communication controller, a supply equipment communication controller, and the on board charger controller controlling the bidirectional power conversion circuit; wherein, the supply equipment communication controller indirectly communicates with the on board charger controller via the electric vehicle communication controller through a first communication channel, and the supply equipment communication controller further directly communicates with the on board charger through a second communication channel.
The present disclosure provides a manufacturing method of a magnetic element, comprising: forming an insulation layer on an outer side of at least one section of a magnetic column of a magnetic core; forming a metal wiring layer on an outer side of the insulation layer through a metallization process; and dividing at least part of the metal wiring layer into a multi-turn metal winding through a mechanically dividing process.
H01F 27/32 - Insulating of coils, windings, or parts thereof
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 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
A flyback power converter includes a transformer, a voltage clamping circuit, a main switch element and a control circuit. The voltage clamping circuit includes a first capacitor and a clamping switch element. The first capacitor is electrically connected with a primary winding of the transformer. The clamping switch element is electrically connected between the capacitor and the primary winding. The control circuit detects a capacitor voltage of the first capacitor and a current flowing through the clamping switch element. If the capacitor voltage is greater than a reference voltage, the clamping switch element is turned on. If the capacitor voltage is not greater than the reference voltage and the current flowing through the clamping switch element is lower than a reference current value, the clamping switch element is turned off.
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
54.
POWER SUPPLY APPARATUS, LOAD AND ELECTRONIC DEVICE
An electronic device includes: a system board; a load, located on the first side of the system board and including a power supply region, the power supply region includes load pins arranged in a plurality of rows and in a plurality of columns; and at least one column of output capacitors, located on the second side of the system board along a third direction; at least one row of the load pins is a first arrangement row, the first arrangement row includes a plurality of load pin groups arranged sequentially along the second direction, each of the load pin groups includes at least two load pins of a same polarity; and two ends of a vertical projection of each column of the output capacitors on the power supply region are located at two sides of a centerline, in the third direction, of at least one first position pin.
A resonant circuit and a control method thereof, the resonant circuit including a plurality of resonant modules connected in parallel. The control method includes: obtaining an output current signal and an output voltage signal according to an output current and an output voltage sampled of the respective resonant module; correspondingly generating, via the respective resonant module, a first control voltage signal through a voltage loop according to a current difference between the output current and an average output current and the output voltage signal, and correspondingly generating a second control voltage signal through a current loop according to the output current signal; selecting to use one of the first or second control voltage signal according to whether the output current reaches the current limit value for controlling a switch frequency of the corresponding resonant module, thereby achieving current-sharing or current-limiting control of the respective resonant module.
H02M 3/00 - Conversion of DC power input into DC power output
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
An integrated magnetic element includes an base; a current sensor disposed on the base; and a transformer provided on the base through which the current sensor and the transformer are integrated into one part, the transformer including a magnetic core, a first winding comprising at least one wire, and a second winding, wherein a part of section of the one wire of the first winding passes through the current sensor, and current value of the part of section of the one wire is detected by the current sensor so as to obtain a total current value of the first winding of the transformer.
H01F 27/40 - Structural association with built-in electric component, e.g. fuse
G01R 15/18 - Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using inductive devices, e.g. transformers
Provided are a method for online updating a program of a network power supply, a network power supply and a communication system. The method includes: receiving cipher text of a to-be-updated program sent from a system side, where the cipher text of the to-be-updated program is generated by encrypting a to-be-updated program with a preset key; performing verification, according to a key pre-stored in the network power supply, on the cipher text of the to-be-updated program, to obtain a verification result; and decrypting the cipher text of the to-be-updated program and updating the to-be-updated program according to a decrypted program, if the verification result shows that the verification is passed.
The application discloses an insulation detection method and apparatus for a conversion system, the conversion system including: a converter module including n conversion units, where n≥1, each of the n conversion units including a transformer including a primary winding and a secondary winding; and a connection element connected between the primary winding and the secondary winding of the transformer; the insulation detection method including: controlling at least one switch of the converter module to turn on;
The application discloses an insulation detection method and apparatus for a conversion system, the conversion system including: a converter module including n conversion units, where n≥1, each of the n conversion units including a transformer including a primary winding and a secondary winding; and a connection element connected between the primary winding and the secondary winding of the transformer; the insulation detection method including: controlling at least one switch of the converter module to turn on;
detecting signals that reflect a current flowing through the connection element; and processing the signal and outputting insulation information, wherein the insulation information represents an insulation state of the conversion system.
An energy storage module includes a bus connection part, a battery pack, a capacitor and a series compensation DC conversion device. A first conduction terminal of the series compensation DC conversion device is electrically connected with a positive bus connection terminal and a negative bus connection terminal of the bus connection part, or the first conduction terminal is connected with a battery positive terminal and a battery negative terminal of the battery pack. A second conduction terminal of the series compensation DC conversion device is electrically connected with two terminals of the capacitor. A four-quadrant DC/DC converter of the series compensation DC conversion device controls the capacitor to generate a compensation voltage to compensate a voltage between the two terminals of the battery pack, or the four-quadrant DC/DC converter adjusts a current flowing through the battery pack to a set value.
H02M 3/00 - Conversion of DC power input into DC power output
H02M 3/07 - Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using resistors or capacitors, e.g. potential divider using capacitors charged and discharged alternately by semiconductor devices with control electrode
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
60.
PLANAR MAGNETIC ELEMENT AND MANUFACTURING METHOD THEREOF
The present disclosure discloses a planar magnetic element and a manufacturing method thereof. The planar magnetic element includes: a housing, with an internal space; a core, accommodated in the internal space of the housing, and the core including at least one limb; at least one planar winding corresponding to the limb; and potting adhesive, filled in all air gaps in the internal space of the magnetic element, and blocking the clearance and creepage path between the planar winding and the core and/or between the two planar windings. The present disclosure may significantly reduce the volume of the magnetic element and greatly increase the partial discharge extinction voltage, thereby reducing the partial discharge risk of the magnetic element and improving the reliability. Moreover, the compact structure of the planar magnetic element is conducive to improving the power density of the module.
An energy storage module with bypass circuit is provided. The energy storage module includes a first battery pack, a first capacitor, a bypass circuit and a bidirectional isolated converter. The first capacitor is electrically connected between the positive bus connection terminal and the first positive battery terminal or between the negative bus connection terminal and the first negative battery terminal. The bypass circuit is electrically connected to two terminals of the first capacitor. The first positive and negative connection terminals of the bidirectional isolated converter are electrically connected to the positive and negative bus connection terminals respectively or are electrically connected to the first positive and negative battery terminals respectively. The second positive and negative connection terminals of the bidirectional isolated converter are electrically connected to the two terminals of the first capacitor respectively. When the energy storage module enters a bypass mode, the bypass circuit bypasses the first capacitor.
A system of providing power to a chip on a mainboard includes a first power supply that is located on the mainboard and configured to receive a first voltage and to provide a second voltage; a second power supply and a third power supply that are located on the mainboard and disposed at different sides of the chip, where each of the second power supply and the third power supply is electrically connected to the first power supply to receive the second voltage, the second power supply provides a third voltage to the chip, the third power supply provides a fourth voltage to the chip; and at least one power supply controller that is located on the mainboard and configured to control operation of the second power supply and the third power supply.
H02M 3/02 - Conversion of DC power input into DC power output without intermediate conversion into AC
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
The present disclosure provides a driving system for driving a switching device and including a switch driving module and corresponding a switching device. The switch driving module receives a driving signal and outputs a driving voltage. The switching device is electrically coupled to the switch driving module, the switching device receives the driving voltage and is turned on or off accordingly. The switch driving module includes a high-impedance voltage dividing module and a constant voltage dividing module. The high-impedance voltage dividing module is configured for dividing and limiting the driving voltage of the switching device when the switching device is turned on. The constant voltage dividing module provides a low-impedance shunt path for the gate-source of the switching device when the switching device is turned off and the changing rate of a drain-source voltage of the switching device is too high.
The present application discloses a power module, including: at least one transformer, each transformer including a primary side magnetic core and a secondary side magnetic core; a primary side power element, the primary side magnetic core and the primary side power element forming a primary side conversion unit; a secondary side power element, the secondary side magnetic core and the secondary side power element forming a secondary side conversion unit; and an insulating plate, disposed between the primary side conversion unit and the secondary side conversion unit, and including a first area, the first area being adaptively disposed between the primary side magnetic core and the secondary side magnetic core, and the first area having at least one buckling part and/or at least one bending part.
A switching power converter and a control method thereof are provided. First, a switching power converter is provided. The switching power converter includes a main switch and an auxiliary circuit electrically connected in parallel to the main switch, and the auxiliary circuit includes an auxiliary switch and an auxiliary capacitor electrically connected in series. Afterwards, a load state of the switching power converter is detected. When the load state of the switching power converter is light, the auxiliary switch is controlled to turn off for maintaining a capacitance of a first equivalent capacitor between a drain and a source of the main switch at a low threshold. When the load state of the switching power converter is heavy, the auxiliary switch is controlled to turn on for maintaining the capacitance of the first equivalent capacitor at a high threshold.
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
66.
POWER CONVERSION DEVICE AND CONTROL METHOD THEREOF
A power conversion device and a control method thereof are provided. The power conversion device includes a three-level inverter, positive and negative DC terminals, first and second capacitors, a balance circuit, a bidirectional DC-DC converter and a controller. The three-level inverter has two DC terminals coupled to the positive and negative DC terminals respectively. Two terminals of the first capacitor are coupled to the positive DC terminal and a capacitor midpoint respectively. Two terminals of the second capacitor are coupled to the capacitor midpoint and the negative DC terminal respectively. The balance circuit is electrically connected between the positive and negative DC terminals and has a neutral terminal electrically connected to the capacitor midpoint. The bidirectional DC-DC converter is electrically connected to the DC terminals. The controller controls the balance circuit according to two capacitor voltages across the first and second capacitors respectively to keep the two capacitor voltages equal.
H02J 3/28 - Arrangements for balancing the load in a network by storage of energy
H02J 3/01 - Arrangements for reducing harmonics or ripples
H02J 3/38 - Arrangements for parallelly feeding a single network by two or more generators, converters or transformers
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 7/5387 - Conversion of DC power input into AC 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, e.g. single switched pulse inverters in a bridge configuration
An energy storage system includes a DC bus, an energy storage converter, n first battery racks and m energy storage units. The DC bus has a positive bus and a negative bus. The energy storage converter is electrically connected to the DC bus. Each of the n first battery racks is electrically connected between the positive bus and the negative bus directly. Each of the m energy storage units includes a second battery rack and a DC/DC converter. The DC/DC converter is electrically connected between the corresponding second battery rack and the DC bus. The DC/DC converter performs electric energy conversion between the corresponding second battery rack and the DC bus.
H02J 3/12 - Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load
H01M 10/46 - Accumulators structurally combined with charging apparatus
H01M 50/204 - Racks, modules or packs for multiple batteries or multiple cells
H01M 50/296 - MountingsSecondary casings or framesRacks, modules or packsSuspension devicesShock absorbersTransport or carrying devicesHolders characterised by terminals of battery packs
H02J 7/00 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
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
68.
POWER CONVERSION SYSTEM AND AUXILIARY POWER SUPPLYING METHOD THEREOF
A power conversion system and an auxiliary power supplying method thereof are provided. The power conversion system includes AC and DC ports, an AC-DC converter, a bus capacitor, and a first auxiliary source. The AC port receives or provides an AC voltage, and the DC port provides or receives a DC voltage. The AC-DC converter has an AC terminal and a DC terminal electrically connected to the AC port and the DC port respectively. The bus capacitor is electrically connected to the DC terminal. The first auxiliary source has an input terminal electrically connected to the bus capacitor for receiving a capacitor voltage across the bus capacitor.
H02M 7/68 - Conversion of AC power input into DC power outputConversion of DC power input into AC power output with possibility of reversal by static converters
The present disclosure provides a filter system including N common mode chokes, N+1 first capacitors, N+1 second capacitors and N+1 third capacitors. Each common mode choke includes a first winding, a second winding, a third winding and an auxiliary winding. In the k-th common mode choke, a second terminal of the k-th first capacitor, a second terminal of the k-th second capacitor and a second terminal of the k-th third capacitor are all electrically connected to a k-th electrical midpoint, and two terminals of the auxiliary winding of the k-th common mode choke are electrically connected to the k-th electrical midpoint and a (k+1)-th electrical midpoint respectively, N is a positive integer and k is a positive integer less than or equal to N.
An electrical system includes a first conduction terminal, a second conduction terminal, N power units and N supporting devices. The N power units are electrically connected between the first conduction terminal and the second conduction terminal in series, and N is an integer greater than or equal to 2. Each of the N supporting devices includes a conductive part and a support part. Each of the N power units is disposed on the corresponding conductive part. The conductive part is electrically connected with a power terminal of one of the N power units or electrically connected with a reference potential of the electrical system. The support part is connected between the corresponding conductive part and a ground potential.
In the present disclosure, the multi-level AC/DC conversion circuit and the multi-level DC/DC conversion circuit calculate the duty ratio of synchronous rectification switch according to the input voltage, the output voltage, the interval time of turning on the main switch, the switching cycle and the duty ratio of main switch, thereby eliminating the need for additional zero-current detecting function or zero-crossing detection circuit in conventional AC/DC conversion circuits. Accordingly, for the multi-level AC/DC conversion circuit and the multi-level DC/DC conversion circuit of the present disclosure, the cost is reduced, and the reliability is enhanced.
H02M 7/04 - Conversion of AC power input into DC power output without possibility of reversal by static converters
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
72.
MULTI-LEVEL CONVERSION CIRCUIT AND CONTROL METHOD FOR FLYING CAPACITOR VOLTAGE THEREOF
A multi-level conversion circuit and a control method for flying capacitor voltage thereof are provided. In the multi-level conversion circuit, each flying capacitor is connected between a common connection node of the lower switches connected therewith and a common connection node of the upper switches connected therewith. The control method includes steps of: (a) determining the main switch and synchronous rectification switch of the lower and upper switches; (b) acquiring an adjustment value corresponding to each flying capacitor; (c) adjusting a duty ratio of the main switch according to the adjustment value corresponding to the flying capacitor connected therewith; and (d) when the multi-level conversion circuit working in a CCM, increasing a phase-shift angle between the main switches by an angle to make a peak value or a valley value of an inductor current remain unchanged before and after adjusting the duty ratio.
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
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 7/04 - Conversion of AC power input into DC power output without possibility of reversal by static converters
73.
MULTI-LEVEL CONVERSION CIRCUIT AND CONTROL METHOD FOR FLYING CAPACITOR VOLTAGE THEREOF
A multi-level conversion circuit and a control method for flying capacitor voltage thereof are provided. In the multi-level conversion circuit, each flying capacitor is connected between a common connection node of the lower switches connected therewith and a common connection node of the upper switches connected therewith. When the conversion circuit works in a DCM, the control method includes steps of: (a) determining the main switch and synchronous rectification switch of the lower and upper switches; (b) acquiring an adjustment value corresponding to each flying capacitor; and (c) adjusting a duty ratio of the main switch according to the adjustment value corresponding to the flying capacitor connected therewith, wherein the adjustment trend of the duty ratio under D<(N−2)/(N−1) is opposite to that under (N−2)/(N−1)
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 1/088 - 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
74.
FLYBACK POWER CONVERTER AND CONTROL METHOD THEREOF
A control method for a flyback power converter is provided. Firstly, a flyback power converter is provided. The flyback power converter includes a transformer, a leakage inductance energy recovery circuit and a control unit. Then, a delayed turn-off time period is defined by the control unit. Then, a detection signal related to a current flowing through the leakage inductance energy recovery circuit is detected. If the detection signal is greater than or equal to a first set value, a switch element of the leakage inductance energy recovery circuit is turned on. If the detection signal is lower than or equal to a second set value, the second switch element is turned off after the delayed turn-off time period.
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
A modular multilevel converter and a control method are provided. When an AC input voltage from a power grid is lower than a drop threshold value and the modular multilevel converter is in a drop state, the idle upper bridge arm submodules of the n upper bridge arm submodules and the idle lower bridge arm submodules of the n lower bridge arm submodules are in the on-state. Consequently, the total number of the on-state upper bridge arm submodules and the on-state lower bridge arm submodules is increased to be greater than n. Since the average value of the DC voltages received by the upper bridge arm submodules or the lower bridge arm submodules is decreased, the voltage stress of the total submodule capacitor voltage of the on-state upper bridge arm submodules and the on-state lower bridge arm submodules is reduced.
H02M 1/32 - Means for protecting converters other than by automatic disconnection
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
A power device includes a mainboard and a power conversion module. The mainboard includes a first side and a third side opposite each other along a first direction, a second side and a fourth side opposite each other along a second direction, the first direction is perpendicular to the second direction. The power conversion module includes a primary-side circuit board and a secondary-side module. The secondary-side module includes a secondary-side circuit board, and the primary-side circuit board, the mainboard and the secondary-side circuit board being electrically connected, the primary-side circuit board and the secondary-side circuit board are spatially separated. The secondary-side module further includes secondary-side element and a first magnetic core element, wherein the secondary-side element and the first magnetic core element are disposed on the secondary-side circuit board along a third direction perpendicular to the first direction and the second direction.
H02M 1/42 - Circuits or arrangements for compensating for or adjusting power factor 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
H05K 1/18 - Printed circuits structurally associated with non-printed electric components
78.
POWER ADAPTER WITH LIMITED POWER SOURCE FUNCTION AND CONTROL METHOD THEREOF
A power adapter includes a transformer, an output terminal, a secondary side circuit and a secondary side controller including an operational amplifier. The secondary side circuit includes a first switch, a second switch and a sampling resistor. The first switch is connected with a secondary winding of the transformer and the second switch. The second switch is connected with the output terminal. The sampling resistor is connected between the secondary winding and the output terminal for acquiring a sampling voltage. The operational amplifier generates a voltage difference value according to the result of comparing a reference voltage value with a feedback voltage value. When the sampling voltage is lower than a first voltage level and the voltage difference value is greater than a second voltage level, the second switch is turned off under control of the secondary side controller.
H02M 5/12 - 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 transformers for conversion of voltage or current amplitude only
A substrate includes a first insulation layer, a passive component, a first through-hole structure, a second insulation layer and a second electrode. The first insulation layer has a top surface and a bottom surface. The passive component is embedded in the first insulation layer. The passive component includes a first conducting terminal. The first through-hole structure is formed in the first insulation layer. The first through-hole structure includes a conductive part and an insulation part disposed within the conductive part. The conductive part is in contact with the first conducting terminal and formed as a first electrode. The second insulation layer is disposed on portion of the conductive part that is close to the bottom surface of the first insulation layer. At least part of the second electrode is disposed on the second insulation layer. The second electrode is in contact with the first insulation layer.
H02M 3/06 - Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using resistors or capacitors, e.g. potential divider
A power supply system includes a system board electrically connected to a load; a first package and a second package provided on an upper side of the system board; and a bridge member provided on upper sides of the first package and the second package, comprising a passive element and used for power coupling between the first package and the second package, wherein vertical projections of the first package and the second package on the system board are both overlapped with a vertical projection of the bridge member on the system board, the first package, and the second package are encapsulated with switching devices, terminals on upper surfaces of the first package and the second package are electrically connected to the bridge member, and terminals on lower surfaces thereof are electrically connected to the system board.
H01L 25/10 - Assemblies consisting of a plurality of individual semiconductor or other solid-state devices all the devices being of a type provided for in a single subclass of subclasses , , , , or , e.g. assemblies of rectifier diodes the devices having separate containers
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 23/367 - Cooling facilitated by shape of device
H01L 23/538 - Arrangements for conducting electric current within the device in operation from one component to another the interconnection structure between a plurality of semiconductor chips being formed on, or in, insulating substrates
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 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
The present disclosure provides a control method of a charging system. The control method includes: providing a charging chip, wherein the charging chip is configured to charge a chargeable device, and the charging chip performs a wake-up task with a wake-up period during a standby mode; performing a plurality of wake-up subtasks in the wake-up task; and according to the priority of each of the plurality of wake-up subtasks, setting a corresponding working cycle of each wake-up subtasks, wherein the charging chip performs each of the wake-up subtasks with the corresponding working cycle, and the wake-up subtasks with different priorities have different working cycles.
The present disclosure discloses a method and a system for controlling a switching power supply, the switching power supply comprising a power factor correction circuit which comprises at least one electrolytic capacitor, the method comprising: detecting a ripple voltage of the electrolytic capacitor; controlling an actual output power of the switching power supply to be equal to a reference output power based on the ripple voltage of the electrolytic capacitor, wherein the reference output power equals to a compensated output power or an upper limit output power, and wherein the compensated output power is obtained by comparing the ripple voltage of the electrolytic capacitor with a reference voltage and subjecting to a compensation calculation. The reference output power is a smaller one of the compensated output power and the upper limit output power.
The present disclosure provides a magnetic component and a power module, relating to the technical field of power electronics; the magnetic component provided by the present disclosure includes: a first heat sink, a magnetic core extending in a transverse direction and a winding structure wound on the magnetic core, the winding structure includes at least a first coil and a second coil arranged adjacently along the transverse direction, a gap is provided between the first coil and the second coil, at least part of the first heat sink is arranged in the gap, the first heat sink is in thermal contact with the first coil, the second coil and the magnetic core.
The present disclosure provides a transformer module and a power module, wherein the transformer module comprises: a magnetic core, where a first insulating layer and a second wiring layer are sequentially disposed on the magnetic core from inside to outside; a first metal winding, wound around the magnetic core and comprising a first winding segment formed in the first wiring layer and a second winding segment formed in the second wiring layer; and a second metal winding, wound around the magnetic core and comprising a third winding segment formed in the first wiring layer and a fourth winding segment formed in the second wiring; where at least part of the first metal winding and the second metal winding are wound around the magnetic core in a foil structure.
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 41/064 - Winding non-flat conductive wires, e.g. rods, cables or cords
H01F 41/08 - Winding conductors onto closed formers or cores, e.g. threading conductors through toroidal cores
H01F 30/08 - Fixed transformers not covered by group characterised by the structure without magnetic core
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
The present disclosure provides a transformer module and a power module, wherein the transformer module comprises: a magnetic core, a first wiring layer, a first insulating layer and a second wiring layer, where the first wiring layer, the first insulating layer and the second wiring layer are sequentially disposed on the magnetic core from outside to inside; a first metal winding, formed in the first wiring layer, where at least part of the first metal winding is wound around the magnetic core in a foil structure; the first insulating layer, at least partially covered by the first metal winding; a second metal winding, formed in the second wiring layer and wound around the magnetic core, where the second metal winding is at least partially covered by the first insulating layer, and at least partially covered by the first metal winding.
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 41/064 - Winding non-flat conductive wires, e.g. rods, cables or cords
H01F 41/08 - Winding conductors onto closed formers or cores, e.g. threading conductors through toroidal cores
H01F 30/08 - Fixed transformers not covered by group characterised by the structure without magnetic core
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
86.
ON BOARD POWER DEVICE AND THERMAL MANAGEMENT SYSTEM
The present disclosure discloses an onboard power device and a thermal management system, wherein the thermal management system comprises the onboard power device which comprises a power assembly comprising a plurality of electronic components and a shell comprising an inner cavity and a coolant passage that are isolated from each other, wherein the power assembly is disposed in the inner cavity which is filled with insulating heat conductive fluid, the power assembly being immersed in the insulating heat conductive fluid, and wherein a coolant flows through the coolant passage. The present disclosure allows the power assembly to be sufficiently and uniformly cooled by immersing in insulating heat conductive fluid, and by circulating coolant in the coolant passage of the onboard power device.
The present disclosure provides a manufacturing process of a metal winding, where the manufacturing process includes: cutting a first metal copper foil to form a connector and a pin; performing insulation processing on a surface of at least one of the first metal copper foil and a second metal copper foil; bending the first metal copper foil to form a first metal winding to cover on a magnetic core; and covering the second metal copper foil at least partially on a surface of the first metal copper foil to form a second metal winding, and a pin of the first metal winding passes through the second metal winding.
H01F 41/08 - Winding conductors onto closed formers or cores, e.g. threading conductors through toroidal cores
H01F 41/064 - Winding non-flat conductive wires, e.g. rods, cables or cords
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
A power supply device is disclosed and includes a housing, a power board, an output terminal and a DCDC conversion module. The housing includes an accommodation space, and a first opening of a rear plate in communication with the accommodation space. The power board disposed in parallel to the lower plate is at least partially accommodated in the accommodation space, and a peripheral edge is disposed adjacent to the rear plate. The output terminal is disposed in parallel to the lower plate, and passes through the first opening of the rear plate. The DCDC conversion module is accommodated in the accommodation space and includes a primary circuit, a transformer and a secondary circuit. The transformer and the secondary circuit are arranged on the power board in sequence. The secondary circuit is arranged on part of the power board existing the peripheral edge and electrically connected to the output terminal.
H02M 3/00 - Conversion of DC power input into DC power output
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
H05K 1/11 - Printed elements for providing electric connections to or between printed circuits
The present disclosure discloses a shielded insulating shell and an electronic device. The shielded insulating shell includes a shell body provided with a first cavity, with an inner shielding layer near the first cavity and an outer shielding layer far away from the first cavity being formed on the shell body; a first structure formed on the first cavity, and formed by assembling to comprise at least a first shielding layer, a first insulating layer, a first air gap layer, a second insulating layer, and a second shielding layer arranged sequentially from an inner side to an outer side of the first cavity; and an assembling gap formed on the first structure, which cooperates with the first air gap layer to form a creepage path on the first structure that extends from the inner shielding layer to the outer shielding layer.
The present disclosure discloses a power conversion system and a communication method for transmitting common mode information in the power conversion system. The communication method comprises the following steps: (a) providing at least two power conversion cells; (b) generating, by each of the power conversion cells, an AC harmonic according to a first electrical signal at the first terminal of the power conversion cell, wherein an amplitude of each AC harmonic represents first information of the power conversion cell, and all the AC harmonics are at the same frequency; and (c) injecting the AC harmonic generated by the corresponding power conversion cells into the first terminal of the corresponding power conversion cell and applying a closed-loop suppression to the AC harmonic generated by the corresponding power conversion cell, and controlling the resonance control unit to output a second electrical signal related to the first information.
H02J 13/00 - Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the networkCircuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
H02J 3/01 - Arrangements for reducing harmonics or ripples
H02M 1/12 - Arrangements for reducing harmonics from AC input or output
H02M 7/04 - Conversion of AC power input into DC power output without possibility of reversal by static converters
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 7/49 - Combination of the output voltage waveforms of a plurality of converters
H02M 7/493 - Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode the static converters being arranged for operation in parallel
The present disclosure provides a magnetic element and a manufacturing method thereof. The manufacturing method including steps of: (a) dividing a magnetic core into a first component and a second component, wherein the first and second components have two connecting surfaces on the split section respectively, and the first and second components have an inner and an outer surfaces; (b) disposing a flexible material on the inner surfaces of the first and second components respectively; (c) sleeving a coil on the first and second components; (d) connecting the two connecting surfaces of the first component to the two connecting surfaces of the second component to assemble the first and second components; (e) utilizing a thermal conduction glue to pot the magnetic element; and (f) curing and forming the thermal conduction glue after a curing time.
H01F 27/26 - Fastening parts of the core togetherFastening or mounting the core on casing or support
H01F 27/22 - Cooling by heat conduction through solid or powdered fillings
H01F 17/06 - Fixed inductances of the signal type with magnetic core with core substantially closed in itself, e.g. toroid
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 27/30 - Fastening or clamping coils, windings, or parts thereof togetherFastening or mounting coils or windings on core, casing, or other support
92.
RESONANT CONVERTER, AND CONTROLLING METHOD FOR THE SAME
The present disclosure discloses a resonant converter, and a controlling method thereof. The resonant converter includes a transformer including a primary winding and a secondary winding, a primary circuit electrically connected to the primary winding and receiving an input voltage, and a secondary circuit electrically connected to the secondary winding and outputting an output voltage. The secondary circuit includes a first secondary half-bridge including a first controllable switch and a second secondary half-bridge including a second controllable switch connected in parallel. The first and second controllable switches are arranged diagonally. The method includes: controlling a duty ratio of one of the first controllable switch and the second controllable switch in a first switching period to form a first short-circuited loop during a first interval during; and controlling a duty ratio of the other one in a second switching period to form a second short-circuited loop during a second interval.
H02M 3/00 - Conversion of DC power input into DC power output
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
A startup control method for a DC/DC converter is used for starting the DC/DC converter with energy transferred from a low-voltage side to a high-voltage side, and includes: acquiring a voltage spike measurement value of a power switch at the low-voltage side; determining a duty cycle or a frequency of a driving signal according to the voltage spike measurement value and a preset voltage; and outputting the driving signal to a power switch at the high-voltage side, thereby charging a clamping capacitor of the power switch at the low-voltage side. The startup control method for a DC/DC converter of the disclosure can improve a reverse charging power of the converter to the maximum extent and reduce the time needed for charging a bus capacitor during a reverse startup process while ensuring voltage stress on the power switch not to exceed a limit.
H02M 1/36 - Means for starting or stopping converters
G01R 19/04 - Measuring peak values of AC or of pulses
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
A totem pole power factor correction circuit includes a detection module and a control unit. The detection module includes a first detection resistor and a first detection circuit. After a voltage difference between the two terminals of the first detection resistor is detected by the first detection circuit, an output voltage is generated. The control unit determines the operating state of the totem pole power factor correction circuit according to the output voltage. If the totem pole power factor correction circuit is in the normal working state, and the totem pole power factor correction circuit is in a steady state or the output power (or the input voltage) is increased or decreased, the control unit controls the on/off states of the corresponding switches in the totem pole power factor correction circuit according to the output voltage.
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
A voltage spike measurement circuit for a power switch includes a rectifier unit, a capacitive divider unit and a discharge unit, the rectifier unit configured to receive a voltage signal at both ends of a power switch and output a rectified signal; the capacitive divider unit includes at least two capacitors connected in series and configured to receive the rectified signal, divide the rectified signal based on a capacitance ratio of the at least two capacitors, and output a divider signal to a digital signal processor to calculate a voltage spike measurement value of the power switch; and the discharge unit connected in parallel to the capacitive divider unit.
H02M 1/36 - Means for starting or stopping converters
G01R 19/04 - Measuring peak values of AC or of pulses
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
The present invention discloses a power supply system and a power supply method. The power supply system includes: a load region, a load disposed in the load region, at least two preceding-stage power supply regions disposed around the load region, preceding-stage power modules disposed in the at least two preceding-stage power supply regions, at least two post-stage power supply regions disposed around the load region, and post-stage power modules disposed in the at least two post-stage power supply regions. The at least two preceding-stage power supply regions and the at least two post-stage power supply regions are arranged in a staggered manner. The preceding-stage power module and the post-stage power module are cascaded to supply power to the load.
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
An isolated DC-DC converter including n conversion circuit units is provided. In each conversion circuit unit, a first connection node is formed between two switching components of a first primary bridge arm, and a second connection node is formed between two electronic components of a second primary bridge arm. A third connection node is formed between two switching components of a first secondary bridge arm, and a fourth connection node is formed between two switching components of a second secondary bridge arm. A first coupling inductor and A first capacitor are serially coupled between the first and third connection nodes. A second coupling inductor and a second capacitor are serially coupled between the second and fourth connection nodes. In the n conversion circuit units, the primary circuit units are electrically connected in series or in parallel, and the secondary circuit units are electrically connected in parallel or in series correspondingly.
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
A DC/DC converter includes a switching circuit and a capacitor. The switching circuit includes a first bridge arm and a second bridge arm connected in parallel. The first bridge arm includes a first switch and a second switch. The second bridge arm includes a third switch and a fourth switch. The capacitor is electrically connected with a node between the first switch and the second switch. While the switching circuit is switched from a half-bridge mode to a full-bridge mode, the duty cycle of the control signal for controlling the fourth switch is gradually decreased from 100% to be synchronized with the duty cycle of the control signal for controlling the first switch. Then, the duty cycle of the control signal for controlling the third switch is gradually increased from zero to be synchronized with the duty cycle of the control signal for controlling the second switch.
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 1/08 - Circuits specially adapted for the generation of control voltages for semiconductor devices incorporated in static converters
The disclosure provides a transformer with an integrated inductor, including a magnetic core, a transformer winding and an inductor winding. The magnetic core comprises a magnetic yoke and magnetic columns connected to the magnetic yoke. The transformer winding is wound around at least one of the magnetic columns, and at least one transformer winding space is formed in the transformer winding. The inductor winding is at least partially accommodated in at least one magnetic yoke or at least one magnetic column of the magnetic core, so that the inductor winding penetrates through the transformer winding space formed by the transformer winding on a single magnetic column at most once, thereby decoupling the magnetic flux produced by the inductor winding from the magnetic flux produced by the transformer winding.
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