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Matches 1 - 50 out of 67,852

Document Document Title
WO/2018/010562A1
A current control method and apparatus, and a power supply source. The method comprises: collecting a current value of an output current of a power supply source (S902), wherein the power supply source comprises: a non-isolation unit (12...  
WO/2018/013185A1
A method and system of driving a switched capacitor converter having a plurality of switches. A first driver coupled to a first switch is powered by providing a first reference voltage level VCC to a first supply and a GND reference to a...  
WO/2018/013183A1
Methods and systems of controlling a switched capacitor converter are provided. Upon determining that a voltage across a flying capacitor is above a first threshold, a first current is drawn from a first terminal of the flying capacitor ...  
WO/2018/012028A1
The purpose of the present invention is to achieve a power supply system such that restrictions on a thermal design of a DC/DC converter can be relaxed and a radiator of the DC/DC converter can be made small. The power supply system (100...  
WO/2018/012059A1
A compound smoothing inductor 10 capable of responding to increased demand for more compact size, higher frequency for the drive frequency, etc., is provided with a coupling transformer 20, a first smoothing inductor 30, and a second smo...  
WO/2018/012443A1
A piezoelectric transformer (101) is provided with a base (1), and an upper layer (15) supported by the base (1). The upper layer (15) includes a first piezoelectric layer (3) disposed so as to include a portion sandwiched by an output e...  
WO/2018/010221A1
Provided is a voltage conversion circuit, comprising a voltage conversion module (110) and a control module (130); the voltage conversion module (110) comprises an input terminal (111), a first capacitor (C1), a second capacitor (C2), a ...  
WO/2018/013184A1
Methods and systems of pre-balancing a switched capacitor converter are provided. A first comparator includes a positive input configured to receive a voltage across an output capacitor and a negative input configured to receive a first ...  
WO/2018/006960A1
A transformer circuit includes a first transformer (T1) and a second transformer (T2), a first terminal of the first transformer connected to a first terminal of the second transformer and an inductor (L1) connected between a second term...  
WO/2018/006769A1
A hysteresis power supply circuit, comprising: an input circuit (102), a switch combination circuit (104), a sampling and control circuit (108), a feedback circuit (106) and an output circuit (110). The input circuit (102) is connected t...  
WO/2018/008841A1
The present invention relates to a wireless power control method for wireless charging, and an apparatus therefor. A wireless power control method for a wireless power transmission apparatus that wirelessly transmits power to a wireless ...  
WO/2018/007182A1
A lighting and power control system includes a two stage power converter system that has a sufficiently high bandwidth to provide sufficient power factor correction and suppresses double line frequency noise to provide a stable output cu...  
WO/2018/009649A1
An apparatus for charging a battery of a user device includes a charge pump that converts an input voltage, received from a power adapter, to a system voltage that is less than the input voltage based on a ratio of the charge pump, a reg...  
WO/2018/006492A1
A DC-DC conversion circuit, comprising: a first energy storage module (110), a second energy storage module (120), a current regulation module (130), and a current detection module (140). The first energy storage module (110) outputs, vi...  
WO/2018/007858A1
A system and method to determine a capacitance of a capacitor. In one embodiment, a power converter includes a controller coupled to an output capacitor and a power train configured to convert an input voltage to a nominal output voltage...  
WO/2018/000907A1
Provided are a noise generation circuit, a self-test circuit, AFCI and a photovoltaic power generation system. The noise generation circuit comprises: a power switch module (11), a noise generator (12) and a capacitor (13). The noise gen...  
WO/2018/002852A1
An AC/DC conversion apparatus includes first, second, and third AC/DC conversion modules operated by a controller in two modes of operation. In the first mode, the input AC signal is 3-phase and each of the three modules are enabled to h...  
WO/2018/005377A1
A resonant DC-DC converter for generating high voltage MHz bi-polar DC pulses includes a left multi-level resonant rectifier bank [100] connected to a positive electrode [104] and coupled via capacitive isolation to a left RF amplifier t...  
WO/2018/001382A1
A variable-frequency electric charge pump unit, a chip, and a communication terminal. The electric charge pump unit comprises a variable-frequency signal generator, an electric charge pump circuit, and a voltage detector connected in ser...  
WO/2018/001328A1
A power regulation device and method, chip system and method for operating the chip system. The power regulation device comprises a controller (21) and a digital-to-analog converter (22). The controller converts a voltage adjustment quan...  
WO/2018/003199A1
A parallel power supply device (100) is provided with: first and second switching circuits (5, 8) in which a plurality of DC/DC converters (30) are connected in parallel, the DC/DC converters (30) sandwiching a transformer (3); first and...  
WO/2018/000436A1
Disclosed is a buck/boost converter, comprising an input end and an output end. The input end is connected in parallel with a MOS transistor Q3 and a MOS transistor Q4; the MOS transistor Q3 is connected in series back to back with the a...  
WO/2018/001257A1
A bidirectional DC-DC power control circuit and a control method therefor. The circuit comprises a port A, a port B, a soft-starting circuit and a unidirectional DC-DC power supply. The unidirectional DC-DC power supply comprises an inpu...  
WO/2018/004009A1
Provided are a novel and useful p-type oxide semiconductor that has excellent electrical conductivity, and a method for manufacturing the same. Through an atomization step for atomizing a raw material solution that contains d block metal...  
WO/2018/002998A1
In a power supply device according to the present invention, an input voltage (power supply voltage) value is detected by an input-side voltage detection circuit, and a comparison voltage (error voltage) for comparing with an on timer (t...  
WO/2017/221804A1
This inductor is provided with: a U-shaped core 10 in which leg parts 10b are an integrally formed on both ends of a flat board part 10a, an outer surface of which is an installation surface for installation on a heatsink; an I-type core...  
WO/2017/221366A1
Provided is a switching power supply device with which operation can be stabilized even if the output voltage greatly varies. This switching power supply device (1) generates a driving power supply Vcc for a primary-side control IC (10) ...  
WO/2017/221610A1
A power supply system includes a plurality of power supply devices (1) that are all connected to a load (2). A first power supply device (1) calculates control information for controlling voltage or current to be output to the load (2), ...  
WO/2017/222568A1
In accordance with embodiments of the present disclosure, a multi-mode switching power converter may include a power inductor, a first switch coupled between a first terminal of the power inductor and a first supply terminal having a fir...  
WO/2017/223065A1
A power supply system and related method for providing a regulated DC output from an unregulated AC input includes a Vienna rectifier (2) having power factor correction circuitry (29) and a series resonant DC to DC converter (5) to provi...  
WO/2017/223038A1
A soft switching half bridge switching cell. Further this soft switching half bridge cell contains at least two synchronous rectifiers in the secondary which are conducting together during the dead time of the primary switchers creating ...  
WO/2017/221421A1
A power supply apparatus provided with: a power supply; a converter for converting the voltage of power supplied by the power supply; and a control unit for generating a first control signal for causing the converter to input or output a...  
WO/2017/220019A1
A switch power supply, an electronic device, and a switch power supply control method. The switch power supply comprises a first switch circuit (31) and a second switch circuit (32) that are cascaded and bear the output power of the swit...  
WO/2017/219823A1
A power supply circuit (31) and a terminal having the power supply circuit is provided. The power supply circuit comprises: a power supply input module (21), a power supply output module (22), and an adder circuit module (23). The power ...  
WO/2017/221476A1
Provided is an isolated converter reduced in size in comparison with a conventional isolated converter and having high heat dissipation properties. The isolated converter is provided with a multi-layer substrate (8) in which a first thro...  
WO/2017/220133A1
A snubber circuit operable with a power converter. The power converter includes a controller configured to provide a control signal to control a conductivity of a power switch of the power converter. In an embodiment, the snubber circuit...  
WO/2017/217318A1
A load driving device 100 receives input voltage from a power supply 202, and supplies electrical power to a load 200 under the control of a processor. A processor 204 carries out linked output of a first signal Sig1 and a second signal ...  
WO/2017/217249A1
A power converter (1) is provided with: a capacitive power conversion unit (10) that steps a voltage up or down by switching a plurality of switch elements (S11-S17) to charge or discharge a plurality of capacitors (C11-C13), and outputs...  
WO/2017/218611A1
A bias voltage generator circuit may include a mode control circuit, a clock generator circuit coupled with the mode control unit and configured to generate a plurality of clock signals, and a charge pump circuit configured to receive th...  
WO/2017/216523A1
Apparatus and methods of operating an electric motor are provided, comprising energising a plurality of stator coils in sequence to rotate a rotor. Each said coil is energised with a repeating pulse sequence comprising at least a first p...  
WO/2017/217248A1
A power converter unit (1) is provided with a capacitive power converter (10) and an inductive power converter (20) that are connected in a cascade arrangement, and a charging circuit (30). The capacitive power converter (10) comprises a...  
WO/2017/215873A1
The invention relates to a switched-mode power supply for supplying an output voltage (Uout) controlled to a target value (Us) to a load (S), which switched-mode power supply can be economically produced and is suitable for use in explos...  
WO/2017/217250A1
A power converter unit (1) is provided with a capacitive power conversion unit (10), an inductive power conversion unit (20), and a reference clock output unit (30). The capacitive power conversion unit (10) and the inductive power conve...  
WO/2017/215894A1
Voltage converter (1) comprising at least: a boost circuit (2) configured for converting an input voltage Vin to an out- put voltage Vout, wherein a setpoint for the output voltage Vout is, by a fixed additional value Vf, larger than the...  
WO/2017/217022A1
The multi-phase DC/DC converter comprises: a current detection unit connected to the subsequent stage of a connection point where output ends of each DC/DC converter are connected, thereby detecting output currents of the respective DC/D...  
WO/2017/211656A1
The described vehicle supply system (FB) comprises an inverter (WR), an electric energy store (ES), an electric machine (EM) and a DC transmission link (DC+, DC-). The inverter (WR) is connected to the energy store (ES) via input current...  
WO/2017/212846A1
In the display device, the effect on a drive circuit by noise generated with a DC/DC converter circuit is effectively reduced. A display device (1) is provided with: LEDs (191a-192c) as the light source; a drive substrate (12) provided w...  
WO/2017/211655A1
An on-board vehicle power system is equipped with an inverter (WR), an electric energy store (ES), an electric machine (EM) and an AC transmission connection (AC). The inverter (WR) has a first and a second side (S1, S2) and is configure...  
WO/2017/211657A1
The described vehicle supply system comprises an inverter (WR), an electric energy store (ES), an electric machine (EM) and a DC transmission link (DC+, DC-). The inverter (WR) is connected to the energy store (ES) via input current term...  
WO/2017/213030A1
A power conversion device (1) provided with: input/output terminals (IO11, IO12) to or from which a voltage V1 is input or output; input/output terminals (IO21, IO22) to or from which a voltage V2 higher than the voltage V1 is input or o...  

Matches 1 - 50 out of 67,852