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Matches 251 - 300 out of 33,041

Document Document Title
WO/2019/150555A1
[Problem] To enable the reduction of power loss while ensuring switching time. [Solution] This driving circuit 1 controls the time-dependent increase/decrease change of a gate voltage corresponding to the change of a control signal which...  
WO/2019/084137A3
According to one aspect, embodiments of the invention provide a start-up circuit for a power system, the start-up circuit comprising an input configured to be coupled to a power source and to receive input DC power from the renewable ene...  
WO/2019/151639A1
The present invention relates to a drop frequency controller for maintaining different frequency qualities in an independent type multi-microgrid system, and an independent type multi-microgrid system using the same. The present inventio...  
WO/2019/149675A1
The present disclosure relates to a slotless synchronous permanent magnet, PM, motor (1) comprising: a rotor (5), and a stator (3) configured to electromagnetically interact with the rotor, wherein the rotor (5) is provided with a first ...  
WO/2019/150560A1
This power conversion device comprises: a casing provided with a housing section; a circuit board housed in the housing section and having an inverter circuit or an inverter control circuit controlling the inverter circuit; a cooling fan...  
WO/2019/149211A1
A DC to DC voltage converter includes a first voltage converter module configurable to generate a first output at a first output voltage selected from two or more different voltages and a second voltage converter module configurable to g...  
WO/2019/146114A1
The insulation degradation monitoring device according to the present invention is provided with a computer installed with software. The software enables the computer to perform at least first processing, second processing, third process...  
WO/2019/145015A1
A DC/DC power converter 100 comprises three or more capacitors 120a-d connected in series between an output terminal 112 and a ground terminal 113, the three or more capacitors 120a-d being connected in series by means of two or more cap...  
WO/2019/144241A1
Resonant converters with wide voltage gain ranges are achieved by controlling at least one of the primary side resonant circuit and the secondary side rectifier circuit. A switch is included in at least one of the primary or secondary si...  
WO/2019/146899A1
In order to solve the above technical problem, a direct current/direct current converter according to an embodiment comprises: an overcurrent protection circuit unit connected to a first terminal; a direct current stabilization circuit u...  
WO/2019/145044A1
Switching cell (10) for a voltage source converter (1) comprising a switching circuit (13) with a plurality of semiconductor switches (30, 31-34), and a DC source (14). The switching circuit (13) is arranged in parallel to the DC source ...  
WO/2019/144620A1
A novel discharge circuit and a method therefor. The novel discharge circuit comprises a voltage regulation chip (4), a discharge control circuit (1), a discharge switch circuit (3), a discharge bootstrap circuit (2) and an output circui...  
WO/2019/147230A1
Example implementations relate to an apparatus to control supplying power to a linear load; the power having a predetermined current profile; the apparatus comprising a controller to establish synchronisation information associated with ...  
WO/2019/145081A1
The invention relates to a circuit arrangement of a converter (1) for the electrical supply of a multi-phase electric motor (2). The arrangement comprises multiple DC-voltage-supplied (+DC, -DC) phase intermediate circuits (13) and multi...  
WO/2019/146290A1
A negative voltage generation circuit 200 has: a first direct current voltage source 201 wherein a positive electrode end is connected to a first node N1 (Vin); a first diode 201 wherein the cathode is connected to a negative electrode e...  
WO/2019/145016A1
A DC/DC power converter 100 has an input terminal 111, an output terminal 112, and a ground terminal 113. The DC/DC power converter 100 comprises two capacitors 121, 122 connected in series between the output terminal 112 and the ground ...  
WO/2019/146149A1
This drive device is provided with: a first gate driver circuit, which outputs, to a control terminal of a first transistor, a first control signal generated on the basis of a first positive power supply voltage of first positive power s...  
WO/2019/144962A1
A power factor correction (PFC) circuit for use with a switched-mode power supply includes a rectifier, a boost PFC converter, a PFC controller, a PFC transistor electrically coupled between the PFC controller and the boost PFC converter...  
WO/2019/143594A1
A control circuit (100) that is applicable to power supply systems that use synchronous rectification techniques is described. The control circuit provides a self-driven method of control to an active switch (142) by sensing the current ...  
WO/2019/142235A1
This vehicle power supply control circuit is provided with: a first input terminal to which a voltage output by a DC-DC converter for performing voltage conversion on a power supply voltage is supplied; a second input terminal to which t...  
WO/2019/142585A1
Provided is a power conversion device which reduces switching loss caused in a low-temperature region of a SiC-MOSFET power semiconductor element mounted in a power semiconductor module. The power conversion device of the present inventi...  
WO/2019/141686A1
A voltage source converter (30) comprises first and second DC terminals (32,34) for connection to a DC network(58), the voltage source converter (30) including a plurality of limbs connected between the first and second DC terminals (32,...  
WO/2019/142730A1
A driving circuit (Dr) drives a plurality of switches (SW1-SW3) to be driven, the switches to be driven being connected in parallel to each other. The switches to be driven have a first main terminal, a second main terminal, and a main c...  
WO/2019/140902A1
Disclosed are a current-limiting protection method and apparatus for a UPS preceding-stage boost circuit. The current-limiting protection method comprises: sampling a current of an inductor in an upper arm and a lower arm of a dual-Boost...  
WO/2019/143534A1
An apparatus and method for reducing an output voltage ripple of a converter (500) are provided. The apparatus may include a controller (550) for controlling the converter, wherein the controller may include a clock generating circuit (5...  
WO/2019/141500A1
The invention relates to a method for monitoring a modular converter (1) having a plurality of modules (1_1... 1_n) connected in a series circuit, each having at least two electronic switching elements (202, 206) and an electrical energy...  
WO/2019/138251A1
An apparatus (21) is described for facilitating emulated current-mode control of a resonant converter (1). The apparatus (21) comprises: an input (21) a for a first signal suitable for use in determining a phase of a resonant current, wh...  
WO/2019/136575A1
The present invention relates to a voltage-type single-stage multi-input high frequency link inverter which has built-in parallel time-sharing selection switches, a circuit structure thereof being formed by connecting multiple common-gro...  
WO/2019/137787A1
The invention relates to a water-borne vehicle comprising a power supply unit (24), said power supply unit (24) comprising fuel cell modules (1) and DC-to-DC converters (16). The DC-to-DC converters (16) are electrically connected, in se...  
WO/2019/139600A1
A distributed energy storage system is provided for a total integrated network environment. The system includes: a power server platform; and solid state low voltage lighting panels. The power server provides functions to LED panel light...  
WO/2019/140418A1
Systems and methods to reduce magnetic flux in a welding -type switched mode power supply (100) are disclosed. It comprises: a transformer (214) configured to transform an input voltage (104) to a welding-type voltage; a capacitor (204) ...  
WO/2019/138195A1
The invention relates, in particular, to an electronic device for electrically controlling an inductive load, comprising: a power transistor (M1); a driver circuit (DRV); and an interface (AI1) connecting the power transistor (M1) to the...  
WO/2019/136574A1
The present invention relates to an external parallel-connected time-sharing selective switching voltage-type single-stage multiple-input low-frequency link inverter, the circuit structure thereof is constituted by one external parallel-...  
WO/2019/139216A1
The present invention relates to a pulse width modulation (PWM) control method and apparatus for keeping a direct current-side current constant in a three-level converter, which can control, according to a PWM scheme, such that a direct ...  
WO/2019/137388A1
An auxiliary converter circuit for regulating an input current to a main switching converter circuit. The auxiliary converter circuit has a voltage detector for determining a change in a voltage across the auxiliary converter circuit, an...  
WO/2019/136567A1
A series circuit includes a capacitor connected in series with a power converter output terminals. The power converter provides an auxiliary voltage and a controller controls the power converter auxiliary voltage according to a selected ...  
WO/2019/135491A1
The present invention relates to an induction heating apparatus having improved interference noise cancellation and output control functions. Further, an induction heating apparatus according to one embodiment of the present invention co...  
WO/2019/134670A1
A DC to DC converter uses a multi-level boost converter topology. In addition to an input voltage (107) being connected to an output node through a boost inductor (112) in series with a pair of diodes (141, 142), a bridge circuit generat...  
WO/2019/135820A1
An apparatus is provided which comprises: at least two switches in series between an input voltage node and a ground terminal; an inductor coupled between a mid-point of the at least two switches and an output terminal; a first circuitry...  
WO/2019/134801A1
An electrical luminaire receives an AC supply as well as an auxiliary power supply. A power converter converts the AC power to supply a lighting element. A power factor associated with the AC supply is used as a control input for selecti...  
WO/2019/134816A1
The invention relates to a method for operating an electric synchronous machine, having the steps of: - generating centered pulse-width-modulated switching signals for switching elements (T1...T6) of half-bridges, wherein two switching e...  
WO/2019/128033A1
Disclosed in the present invention are a control method and device for a power factor correction circuit. The method comprises: obtaining voltage information of the power factor correction circuit; determining whether the voltage informa...  
WO/2019/128310A1
An electric pump. The electric pump comprises a PCB board, wherein the PCB board is formed with a power source input port. The electric pump further comprises a common-mode filter, wherein the common-mode filter comprises a common-mode i...  
WO/2019/129311A1
Disclosed in embodiments of the present invention are a control method, apparatus, device, and medium for a power factor correction (PFC) circuit, used for solving the problems of high implementation costs and relatively severe THD that ...  
WO/2019/129291A1
A method for improving the conversion efficiency of a CCM mode of a flyback resonant switch power supply, comprising: presetting a critical value Tset, calculating a time interval Ttap between adjacent zero points in the current connecti...  
WO/2019/129729A1
A method and system is described to determine unbalance compensating currents to be injected or consumed by a three-phase converter by current redistribution. First load- current is decomposed to outputs of at least negative- and zero-se...  
WO/2019/133978A1
In described examples, a DC-DC converter (400) provides electrical power. In response to an input voltage (402) falling below a high voltage operation threshold, the converter (400) repeatedly performs a first normal (N) phase and a seco...  
WO/2019/133110A1
A bidirectional switch for the control of power from an AC source to a load is described. The approach uses power MOSFETs in a bidirectional switch subcircuit configuration having an optically coupled, electrically floating control circu...  
WO/2019/129279A1
An automatic dead zone time optimization system in a primary-side regulation flyback power supply CCM mode, comprising a closed loop formed by a control system, consisting of a single output DAC midpoint sampling module, a digital contro...  
WO/2019/130533A1
A power conversion device 1 of the present invention is characterized by being provided with two or more sets of power modules, which respectively have switching elements 200, 202, and switching element control circuits 100, 102 that res...  

Matches 251 - 300 out of 33,041