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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/2024/007754A1 |
Disclosed in the present invention are a power supply conversion circuit with magnetic balance and a control method therefor. The power supply conversion circuit comprises a primary side conversion module, a transformer, a secondary side...
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WO/2024/008464A1 |
The present disclosure relates to the field of switched mode power supplies (SMPS) and isolated converters, in particular for lighting technology. The present disclosure provides a sensing circuit (100) for an isolated converter (201). T...
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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/2024/006046A1 |
Techniques are provided for improving power efficiency of a multiphase direct current (DC) – DC voltage converter configured to provide DC power to a time domain duplexing radio by enabling a number of phases during a downlink subframe...
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WO/2024/006183A1 |
Techniques for controlling a switching converter. In an example, the converter includes a switching element and a logic circuit. The switching element includes a plurality of parallel- coupled transistors (S1a-b). The logic circuit (203)...
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WO/2024/004470A1 |
A control circuit (2) comprises: a first comparator (61), a first peak hold circuit (71), a first A/D conversion unit, a first control unit, and a first D/A conversion unit (212). The first comparator (61) outputs a first switching signa...
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WO/2024/001571A1 |
Provided in the present application are a power source module and an electric apparatus. The power source module comprises a battery cell and a circuit board, which is electrically connected to the battery cell, wherein there is only one...
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WO/2024/002547A1 |
The invention relates to a voltage converter assembly in an electric drive system, said voltage converter assembly being capable of actuating a connected electric machine in one operating mode and converting an input DC voltage into an o...
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WO/2024/003952A2 |
Techniques are provided for correctly associating a feedback port of a DC-DC voltage converter system and a DC power output port of the DC-DC voltage converter system. By having a correct association, measurement data from a measurement ...
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WO/2024/000921A1 |
An undervoltage detector (300) and a power supply system having said undervoltage detector (300). The undervoltage detector (300) comprises a switched capacitor circuit (310), a start-up control circuit (320), and a single-ended comparat...
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WO/2024/005266A1 |
The present invention relates to an initial driving device and method for a solid-state transformer, in which an internal capacitor of a solid-state transformer is charged using a battery already possessed, instead of a separate external...
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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/2024/004469A1 |
A converter circuit (100) comprises an inductor (L1), a first switch element (S1), a second switch element (S2), a control circuit (2), a main detection circuit (5), and a main OR circuit (8). The control circuit (2) raises an input volt...
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WO/2024/006530A1 |
An inductor-inductor-capacitor (LLC) power converter includes a current input interface to receive a current input indication. The current input indication includes a voltage to represent a current passing through of a primary side of th...
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WO/2024/003938A1 |
The invention discloses a hybrid-mode time-based voltage regulator 100, comprising a PID controller 110 that combines analog and digital techniques. It replaces the VCDL-based PD control with digital PD control and utilizes a voltage-con...
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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/2024/002025A1 |
A transformer, a multi-level power supply modulation circuit, and a control method and device. The transformer comprises at least two magnetic columns (M), at least one primary winding (WP) and multiple secondary windings (WS). The cross...
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WO/2024/004653A1 |
This switching regulator complementarily turns on/off a first switch and a second switch in accordance with an output voltage, and, in a step-up/down mode, sets an on-duty of a third switch as a function based on input and output voltage...
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WO/2024/005915A1 |
A battery charger (10) has at least one charging port for a device having a rechargeable battery, and a charging circuit. The charging circuit includes a DC-DC circuit, a current regulation circuit (CRC) (54) and an output voltage adjust...
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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/2023/248891A1 |
This switch control device comprises: a sample and hold circuit configured to sample and hold information about a current flowing in a first switch as a high-side switch when the first switch is on, in n cycles within m cycles which are ...
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WO/2023/246059A1 |
The embodiments of the present application provide a charging circuit, which is applied to an electronic device. The charging circuit comprises: a resonant circuit, which is configured to convert a received direct-current signal into an ...
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WO/2023/247751A1 |
According to a first aspect, the invention provides a device (200-1) for providing a stable DC voltage supply (220). The device (200-1) comprises a matching converter (206) that is electrically conductively connected or connectable, on a...
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WO/2023/245864A1 |
A two-stage power converter has a Power-Factor Converter (PFC) and a Dual Active Bridge (DAB) converter connected together by a DC link voltage. The DAB converter outputs a battery voltage with a battery current. A PFC controller divides...
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WO/2023/201988A9 |
Provided in the present application is a display apparatus. The display apparatus comprises: a transformer, voltage conversion modules, a feedback module and a light string group, wherein the voltage conversion modules correspond to the ...
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WO/2023/249447A1 |
A power conversion device according to an embodiment of the present invention comprises: a power conversion unit that converts and outputs input power; an auxiliary power unit that receives power from a first input/output terminal of the...
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WO/2023/248774A1 |
Provided is a reactor comprising a coil that has a wound part and a magnetic core. The magnetic core has a plurality of segments including a first core piece. The first core piece is constituted by a composite material that contains a re...
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WO/2023/249222A1 |
An electric power control device for power factor correction, according to one embodiment of the present disclosure, comprises: a rectifying unit for rectifying an input current; a first switch and a second switch connected to an output ...
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WO/2023/246710A1 |
A power conversion apparatus (30), a charging pile (201), an on-board charger and an electric vehicle (10). The power conversion apparatus (30) comprises: a first capacitor branch (31), comprising at least one electrolytic capacitor (C1,...
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WO/2023/247516A1 |
The invention relates to a method for generating a pulse width modulation signal that alternates from a first state, having a first specified period duration (T1), to a second state, having a second specified period duration (T2), the pu...
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WO/2023/249057A1 |
Provided is a welding power supply device 10 wherein, provided respectively for inverter circuits 12a, 12b are: input current detection units 13a, 13b which respectively detect input currents of the inverter circuits 12a, 12b; overcurren...
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WO/2023/249286A1 |
This electronic device may comprise a charging circuit which supplies power to a battery, wherein: the charging circuit comprises a first buck circuit including a first switching element and a second switching element, a second buck circ...
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WO/2023/248775A1 |
This reactor comprises a coil having a winding unit and a magnetic core. The magnetic core has a plurality of divided pieces including a first core piece. The first core piece is configured by a composite material including a resin, and ...
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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/2023/246506A1 |
Disclosed in the present invention are a starting control circuit and a switching power supply system. The circuit comprises: a voltage measurement and action unit, a backlash compensation and starting control unit, and a linear voltage ...
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WO/2023/246861A1 |
Embodiments of the present disclosure provide a DC-DC converter, comprising: an inductor, first and second power tubes, a switch control circuit, a current detection circuit, an output capacitor, a feedback circuit, an error amplifier an...
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WO/2023/246512A1 |
Provided in the embodiments of the present application are a multi-level direct current converter, a voltage control method for a flying capacitor, and a control apparatus. The multi-level direct current converter comprises a controller,...
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WO/2023/247353A1 |
An AC to DC power conversion system comprises a plurality of switched-mode DC to DC converters. Each converter has a first input terminal for receiving current from an AC power supply, the respective second input terminals of each conver...
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WO/2023/246855A1 |
An embodiment of the present disclosure provides a DC-DC converter. The DC-DC converter comprises: a first control circuit, a second control circuit, a first transistor, a second transistor, a first inverter, an output capacitor, an indu...
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WO/2023/245743A1 |
Disclosed in the present invention are a zero-switching-loss non-isolated direct-current boost topology circuit and a control method therefor. In a topology structure, an input positive electrode terminal (101) is connected to the positi...
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WO/2023/243966A1 |
An electronic device (201) according to one embodiment may comprise: a display (260); a first converter circuit (245) which includes a non-inverting buckbooster (510) and a charge pump (530) and is configured to supply a negative first b...
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WO/2023/243594A1 |
A plurality of power supply devices (1A-1C), of which the outputs are connected in parallel with each other, have converter units (3a-3c) that are configured to include a plurality of semiconductor switching elements (10a-10c) and that s...
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WO/2023/244569A1 |
Disclosed are methods, systems, devices, and other implementations, including a voltage converter system that includes two or more Active Half Bridge (AHB) converter circuits, each of the two or more AHB converter circuits connected to o...
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WO/2023/241424A1 |
An elevator contracting brake control circuit, and an elevator. The elevator contracting brake control circuit comprises a safety control module (10), a power source conversion circuit (20) and a microprocessor (30), wherein a controlled...
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WO/2023/243847A1 |
An electronic device for wirelessly receiving power, according to various embodiments, comprises: a coil; a rectifier circuit comprising a plurality of switches; a charging circuit; and a control circuit, wherein the control circuit may ...
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WO/2023/242911A1 |
A switching modulation circuit (11) generates a first control signal with a specific duty ratio. A delay circuit (16) delays the first control signal to generate a second control signal. A zero cross detector (12) detects whether the out...
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WO/2023/243515A1 |
An indoor unit (10) of an air conditioner comprises a rectifying circuit (34), a switching power source circuit (37), a first board (31), and a second board (32). The rectifying circuit (34) rectifies an alternating current voltage and o...
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WO/2023/244253A1 |
A variable frequency drive system includes a power converter (160a) with a plurality of power cells (16al-16c3) supplying power to one or more output phases, each power cell having multiple switching devices, a plurality of sensors monit...
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WO/2023/243115A1 |
Provided is a power conversion device that can suppress fluctuations in output voltage caused by sudden changes in load. Therefore, the power conversion device 100 comprises: an AC-DC converter 101 that converts AC power into first DC po...
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