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WO/2024/008407A1 |
The invention relates to a method for operating a grid-connected inverter (1) which is connected to an electric machine (3), in which method at least one circuit breaker (4) of the inverter (1) is switched on at a firing angle αzü for ...
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WO/2024/009057A1 |
Apparatus is provided for treating an electrode in an electrochemical cell. The electrode is treated to evolve catalytic oxide layers on the electrode surface, which make the electrode suitable for use in hydrogen production. The apparat...
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WO/2024/009679A1 |
This electric power conversion device is applied to a system provided with a storage battery (20) and an electrical apparatus (51), the electric power conversion device comprising a three-level inverter (30), and a rotary electrical mach...
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WO/2024/008486A1 |
An electrical assembly (52) comprises: a voltage source converter (20) including at least one energy storage device (48); an energy storage system (54) electrically coupled to the voltage source converter (20), the energy storage system ...
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WO/2024/007517A1 |
Disclosed in the present invention are a rail transit vehicle, a low-frequency harmonic suppression circuit, and a suppression method. The low-frequency harmonic suppression circuit comprises: an RLC filter circuit, having an input end c...
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WO/2024/008658A1 |
A method for controlling an electrical converter (14) comprises: determining an average flux reference (I) from a reference torque (T ref) and an estimated torque (II), which is determined from measured currents (isabc,I, isabc,II) and m...
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WO/2024/009827A1 |
The present invention addresses the problem of improving power conversion efficiency. A control device (50) of a power conversion device (100) performs a first control operation that, for a control signal to bidirectional switches (8) th...
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WO/2024/009028A1 |
The device for charging a battery (15, 16) of an aircraft (1) comprises a reversible electrical power converter (13) comprising a power inlet (132) configured to be connected to the battery (16) and a power outlet (134) configured to be ...
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WO/2024/008970A1 |
The invention relates to a method for operating a power converter comprising a power electronics circuit, which comprises at least one semiconductor switch, wherein an adjustable transmission ratio between voltages and/or currents is gen...
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WO/2024/004208A1 |
This electric power conversion device having an arm pair (3) in which a first semiconductor switching element (M1) and a second semiconductor switching element (M2) are connected in series between a DC plus terminal and a DC minus termin...
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WO/2024/002548A1 |
A charging device for a vehicle, wherein the charging device (500) has an input-side input terminal unit (100) for connecting a single-phase or three-phase alternating voltage, a PFC stage (200) for providing a direct voltage at an inter...
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WO/2024/004267A1 |
A capacitor according to the present disclosure is provided with: a plurality of capacitor elements arranged side by side in a housing; positive electrode conductors that each connect the positive electrode of each capacitor element with...
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WO/2024/005515A1 |
An electronic device (103) that wirelessly receives power, according to one embodiment, may comprise: a power reception circuit including a coil (221); an impedance compensation circuit (230) electrically connected to the power reception...
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WO/2024/001124A1 |
The present application discloses an isolated AC-DC converter, a charging device, and a power supply system. The isolated AC-DC converter comprises: a PFC filter, wherein an input end of the PFC filter is connected to an alternating curr...
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WO/2024/006354A1 |
A power converter circuit comprises a solid-state switch connected between first and second nodes, a capacitor coupled between the second node and a ground reference node, and a control system which monitors a voltage level across the ca...
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WO/2024/004456A1 |
[Problem] To provide a structure that reflects use of a fibrous body based on the technical concept of using turbulence to perform cooling. [Solution] A unit according to the present invention includes a cooling liquid, an electrical cir...
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WO/2024/004259A1 |
A power conversion device according to the present disclosure is provided with: a casing; a capacitor housed in the casing; a power module that is housed in the casing and converts a DC voltage from the capacitor into an AC voltage; a co...
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WO/2024/004048A1 |
A power conversion device (1) comprises a three-phase inverter (10) and a control device (12) for controlling the operation of the three-phase inverter (10). The three-phase inverter (10) converts input power to three-phase AC power and ...
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WO/2024/004726A1 |
This power supply device comprises: a first terminal base (91) and a second terminal base (92); a substrate (24A) separated from the first terminal base and the second terminal base in the orthogonal direction; and a chassis (60) having ...
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WO/2024/002082A1 |
A three-phase power supply conversion circuit for a household appliance, a household appliance, and a power-on control method. The three-phase power supply conversion circuit comprises a three-level active PFC unit, at least two power-on...
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WO/2024/004459A1 |
[Problem] To provide a novel structure for a mode of use of a fibrous body. [Solution] This unit comprises an electric circuit unit, a cooler through which a cooling fluid passes, and a fibrous body. The electric circuit unit is cooled b...
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WO/2024/004402A1 |
This propulsion device (15) has a propeller (20) and an EPU (50). The EPU (50) has a motor device (60) and an inverter device (80). The motor device (60) has a motor (61) and a motor housing (70). The inverter device (80) has an inverter...
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WO/2024/004346A1 |
This inverter control device (70) comprises: a determination unit which determines whether there is a heating request for heating a target; and a control unit which, when it has been determined that there is a heating request, performs h...
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WO/2024/002525A1 |
An active discharge system and method includes an inverter circuit including a plurality of inverter legs including a first inverter leg and a second inverter leg, with each leg including first and second power switches. In response to a...
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WO/2024/000488A1 |
Disclosed are a current source inverter and a control method therefor, a compressor and a household appliance. The current source inverter comprises a three-phase inverter bridge and a zero-current switch, wherein a bridge arm of each ph...
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WO/2024/000210A1 |
A voltage conversion circuit, comprising: an AC/DC conversion unit, a DC/DC conversion unit, a first control unit, and a second control unit. The AC/DC conversion unit is connected to the DC/DC conversion unit by means of a direct-curren...
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WO/2024/002978A1 |
The present disclosure relates to a system (100) and a method for use with an electrolyzer unit or a fuel cell are disclosed. The system comprises a converter unit (120) comprising a plurality of serially-connected converter cell units (...
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WO/2024/000949A1 |
A DC/AC conversion circuit and a control method therefor, and a modulation method for a cycloconverter. The circuit comprises: an inverter unit (101), which is used for inverting a direct current into an alternating current; at least one...
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WO/2024/004024A1 |
A power module (100A, 100B, 100C, 100D) is provided with a circuit board (10), a first semiconductor element (20), a conductor block (40), and a conductor (30). The first semiconductor element is disposed on the circuit board. The conduc...
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WO/2024/000752A1 |
The present invention relates to the field of beauty instruments. Disclosed are a multi-stage boost handheld high-frequency electro-therapeutic device and a control method therefor. A power source module with a relatively low voltage is ...
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WO/2024/000054A1 |
The invention relates to the implementation of closed-loop current control for three-phase electronic power converters connected to the power grid, based on selective harmonic elimination pulse-width modulation (SHE-PWM) with measured cu...
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WO/2024/002526A1 |
In one embodiment, a method includes receiving DC bus voltage conditions of multiple AC to DC converters of an Input-Series-Output-Parallel power converter during a rectification stage; detecting a peak voltage of each of the DC bus of t...
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WO/2024/004727A1 |
Disclosed is a circuit structure capable of reducing a mounting area occupied by a heat transfer member in a housing and improving heat radiation efficiency of a heat generating component using an energization busbar. A circuit structu...
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WO/2024/004266A1 |
A power conversion device according to the present disclosure is provided with: a casing; a capacitor housed in the casing; a power module that is housed in the casing and converts a DC voltage from the capacitor into an AC voltage; a co...
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WO/2024/004154A1 |
Provided is a control device of a power conversion device, said power conversion device comprising: at least one alternating-current capacitor that is disposed in a capacitor circuit which branches from an alternating-current circuit on ...
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WO/2023/248566A1 |
In the present invention, an electric power conversion device comprises a semiconductor module that has a built-in semiconductor element, a flat tube in which a coolant flows, and a pair of headers that are mounted to both ends of the fl...
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WO/2023/248413A1 |
A motor drive device (1) comprises: a rectification circuit (10); a smoothing capacitor (12) that smoothens an output voltage outputted from the rectification circuit (10); an inverter (13) that has a plurality of switching elements (Q1,...
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WO/2023/248999A1 |
A semiconductor module according to one aspect of the present disclosure comprises a semiconductor device, a cooling plate, and a flow path forming member. The cooling plate is provided on one main surface of the semiconductor device. Th...
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WO/2023/248335A1 |
In a semiconductor device (100) for controlling driving of a semiconductor element (10), a current control unit (1) is provided for passing a pulsed current between a negative electrode terminal (S) and a control terminal (G) of the semi...
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WO/2023/248703A1 |
[Problem] To provide an electric compressor in which an insulation distance between press-fit terminals connecting hermetic pins can be ensured with a relatively simple structure. [Solution] An electric compressor 1 includes: a motor cha...
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WO/2023/246484A1 |
Disclosed in the present application are an electric motor control method and apparatus, and a vehicle. The method comprises: acquiring a torque instruction which is obtained on a communication bus; determining a voltage vector instructi...
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WO/2023/248363A1 |
This power conversion device comprises: an upper arm switching element and a lower arm switching element that are connected in series between a DC positive side terminal and a DC negative side terminal; an AC current detection unit that ...
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WO/2023/249466A1 |
A power conversion device according to one embodiment of the present invention comprises: a power conversion unit which converts an alternating current to a direct current when connected to an alternating current power source to charge a...
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WO/2023/246061A1 |
The present application relates to a transformer circuit, a voltage conversion circuit, an electronic device, and a circuit starting method. A switching unit is provided between a half-bridge circuit and a resonant circuit, and a control...
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WO/2023/248708A1 |
[Problem] To provide a composite device that can contribute to miniaturization of a vehicle air conditioning device, etc., and to suppress malfunctions, etc., of electronic circuits mounted therein. [Solution] This composite device 1 com...
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WO/2023/248300A1 |
An electric power conversion apparatus (1) comprises a plurality of arms (5, 6) and a control device (3). Each of the arms (5, 6) comprises a plurality of sub-modules (7) connected to each other in series. The control device (3) controls...
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WO/2023/248707A1 |
The purpose of the present invention is to provide an electric compressor capable of improving assembling workability of an inverter including a switching element. An electric compressor (1) is provided with an inverter (3) that has a sw...
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WO/2023/246324A1 |
The present application belongs to the technical field of new energy. Disclosed are a control circuit, method and system for battery oscillatory heating, and a readable storage medium. In the present application, a switch module is added...
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WO/2023/245292A1 |
Control strategies for phase-modular three-phase single-stage AC-DC converters with simultaneous power factor correction and power balancing features substantially cancel double line frequency ripple in the converter output voltage that ...
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WO/2023/248913A1 |
This gate driving circuit comprises modulation circuits 2, 3, an on-side rectification circuit 4, and an off-side rectification circuit 5. The modulation circuits 2, 3 make the frequencies of a first modulation circuit vTr1 and a second ...
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