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Matches 1 - 50 out of 7,292

Document Document Title
WO/2018/189760A1
Refrigerating machine (10) comprising: - a refrigeration circuit (11) comprising a compressor (12), - an asynchronous electric motor (13) connected to the compressor (12) to operate it; - at least one fan (14a, 14b) coupled to a heat exc...  
WO/2018/189036A1
A thyristor bridge (28, 34) of an electrical converter (12) is connected to at least one DC link (30) and comprising at least one phase leg (40) for each output phase (R, S, T) and each phase leg (40) being composed of two series-connect...  
WO/2018/186828A1
A downhole drilling system is disclosed. The downhole drilling system may include a pulse-generating circuit electrically coupled to a power source configured to provide an alternating current at a frequency and an input voltage, the pul...  
WO/2018/182432A1
The present invention relates to a AC-AC converter, which has particular relevance to a converter for an inductive or capacitive (wireless) power transfer system. More specifically, the current invention discloses an AC-AC converter comp...  
WO/2018/175824A1
An apparatus includes a first winding and a second winding on a core and having first taps coupled in common to a first node of an inverter circuit. The apparatus further includes a switching circuit configured to selectively couple a se...  
WO/2018/169520A1
A single-stage transmitter for wireless power transfer is provided. The transmitter includes a rectifier stage and an inverter stage sharing a first phase leg. The rectifier stage further includes a rectifying leg including two diodes co...  
WO/2018/161746A1
The present invention relates to the field of biomass preservation apparatuses. Provided are a device (100) and system (200) for generating a low frequency alternating electric field, and a signal conditioning method. The device for gene...  
WO/2018/165079A1
A power distribution system including a first power module and a second power module. The first power module including a first power input receiving an input power, a first transformer receiving the input power and outputting a transform...  
WO/2018/161745A1
The present invention relates to the field of biomass preservation apparatuses. Provided are a device (100) and system (200) for generating a low frequency alternating electric field, and a signal conditioning method. The device for gene...  
WO/2018/159026A1
[Problem] To provide a power supply control device, a power conversion system, and a power supply control method that enable a power conversion device that performs AC-AC conversion on the output of a multi-phase alternating-current powe...  
WO/2018/159027A1
[Problem] To provide a power supply control device, power supply control system, and power supply control method with which a power conversion device that has a resonant circuit disposed on an output side of a matrix converter that uses ...  
WO/2018/159552A1
This power supply substrate (20) is provided with: a first power generation circuit (24) which generates a first three-phase output power on the basis of input alternating current power from a three-phase four-wire alternating current po...  
WO/2018/159551A1
According to the present invention, a power transmission device is for transmitting power to at least one code demodulator (4A) via a transmission path (3), wherein a code modulator (2A) is provided with: a code modulation circuit (23A) ...  
WO/2018/149041A1
A permanent magnet synchronous motor drive system power converter that does not employ an electrolytic capacitor, and a control method thereof. The power converter comprises a single-phase rectifier circuit unit (A) connected to a power ...  
WO/2018/148998A1
Provided are a circuit and liquid crystal display device for reducing power consumption of a power supply. The circuit comprises: a transformer (T1), wherein a secondary drive winding (A) of the transformer (T1) has a first output end (3...  
WO/2018/146567A1
Control of grid voltage in a power grid. A power transformer (10) converts alternating current (AC) electrical power at a higher voltage on the primary leads to AC electrical power at a lower grid voltage on the secondary leads. An auxil...  
WO/2018/129824A1
Provided is a smart half-bridge modified-wave voltage conversion circuit based on PFC interleaved flyback, comprising: an input rectifier filter unit (10); a PFC boost unit (20); an interleaved-flyback isolation transform unit (30), comp...  
WO/2018/129833A1
Provided is a smart sine-wave voltage conversion circuit based on MOS tube full-bridge rectification, comprising an alternating-current input unit (10), a MOS tube full-bridge rectifier unit (20), a PFC boost unit (30), a CLC filter unit...  
WO/2018/132342A1
Systems and methods for operating a power converter are provided. A DC to AC converter can include an inner converter and an outer converter. The inner converter can include an isolation transformer a first plurality of switching devices...  
WO/2018/129834A1
Provided is a smart modified-wave voltage conversion circuit based on MOS tube full-bridge rectification, comprising an alternating-current input unit (10), a PFC boost unit (30), an inverting phase-inversion unit (50), and a MOS tube fu...  
WO/2018/129835A1
A Vienna PFC-based smart half bridge sine wave voltage conversion circuit, comprising: an input unit (10), a Vienna PFC boost unit (20), and a half bridge inversion unit (30). The Vienna PFC boost unit comprises a boost inductor (L2), a ...  
WO/2018/129832A1
A Vienna PFC-based smart half bridge modified wave voltage conversion circuit, comprising: an input unit (10); a Vienna PFC boost unit (20), comprising a boost inductor (L2), a first switch transistor (Q3), a first diode (D1), a second d...  
WO/2018/126554A1
A smart correction wave voltage conversion circuit based on PFC, full bridge, and half bridge, comprising: an input unit (10), a PFC boost unit (20), a full bridge isolation transformation unit (30), and a phase inversion unit (40). The ...  
WO/2018/126555A1
A smart sine wave voltage conversion circuit based on PFC, full bridge and half bridge, comprising: an input unit (10); a PFC boosting unit (20); a full bridge isolation transformer unit (30), comprising a first switch tube (Q6), a secon...  
WO/2018/127960A1
Provided is a power conversion device with which overvoltage can be prevented during acceleration and during constant-speed operation, and deceleration at a desired deceleration rate is possible during deceleration. The power conversion ...  
WO/2018/128812A1
Power converters for use in wind turbine systems are included. For instance, a wind turbine system can include a full power generator having a stator and a rotor. The generator is configured to provide a low voltage alternating current p...  
WO/2018/128858A1
Systems and methods for grounding power generation systems with silicon carbide MOSFET power converters are provided. A power generation system can include a power generator comprising a multiphase rotor configured to generate multiphase...  
WO/2018/128856A1
Systems and methods for grounding power generation units with silicon carbide MOSFET power converters are provided. A power generation unit can include a power generator configured to generate multiphase alternating current power at a fi...  
WO/2018/128819A1
Power converters for use in wind turbine systems are included. For instance, a wind turbine system, can include a wind driven doubly fed induction generator having a stator and rotor. The stator is configured to provide a medium voltage ...  
WO/2018/120483A1
A PFC interleaved flyback full bridge based intelligent sine-wave voltage conversion circuit, comprising an input unit (10); a PFC boosting unit (20); an interleaved flyback isolating transformation unit (30) comprising a first switching...  
WO/2018/124568A1
A three-phase opening and closing control device of the present invention is a three-phase opening and closing control device which controls a breaker connected between a three-phase transformer and a system power supply, wherein the dev...  
WO/2018/120523A1
A PFC forward conversion half bridge-based smart sine wave voltage conversion circuit. The circuit comprises: an input rectifying and filtering unit (10); a PFC boosting unit (20); an isolation two-transistor forward converter (30) compr...  
WO/2018/120522A1
A PFC forward conversion half bridge-based smart modified sine wave voltage conversion circuit. The circuit comprises: an input rectifying and filtering unit (10); a PFC boosting unit (20); an isolation two-transistor forward converter (...  
WO/2018/107619A1
A PFC and LLC resonance-based intelligent full-bridge sine-wave voltage conversion circuit, comprising: an input rectification unit (10), a filtering unit (20), a PFC voltage boosting unit (30), and an LLC isolation converter unit (40), ...  
WO/2018/107599A1
A PFC forward full bridge-based intelligent sine wave voltage conversion circuit, comprising: an input unit (10): a PFC voltage boosting unit (20); an isolation type dual-transistor forward converter (30) comprising a first switching tra...  
WO/2018/107618A1
A power-factor correction (PFC) and LLC resonance-based smart full bridge correction wave voltage conversion circuit, comprising: an input rectifying unit (10); a filtering unit (20); a PFC boosting unit (30); an LLC isolating converter ...  
WO/2018/107621A1
A smart sine wave voltage conversion circuit based on a PFC flyback full bridge, comprising: an input unit (10); a PFC voltage boost unit (20); a flyback isolation converter unit (30), comprising a first switch transistor (Q6), a transfo...  
WO/2018/107600A1
A PFC forward full-bridge based intelligent modified-wave voltage conversion circuit, comprising an input unit (10), a PFC boosting unit (20), an isolated two-transistor forward converter (30), and an inverting phase reversal unit (60). ...  
WO/2018/107225A1
DC power supply systems and methods are disclosed. A power supply system includes a variable frequency drive (VFD) configured to convert AC power at a VFD input to controlled AC power at a VFD output, and the VFD is configured to control...  
WO/2018/107623A1
A PFC dual-full-bridge-based smart sine wave voltage conversion circuit, comprising an input rectifying and filtering unit (10), a PFC booster unit (20), a full-bridge DC-to-DC isolation converter unit (30), an inverter unit (40) and a f...  
WO/2018/107620A1
A power-factor correction (PFC) flyback full bridge-based smart correction wave voltage conversion circuit, comprising: an input unit (10); a PFC boosting unit (20); a flyback isolating converter unit (30), comprising a first switch tube...  
WO/2018/107622A1
A power-factor correction (PFC) double full bridge-based smart correction wave voltage conversion circuit, comprising: an input rectifying and filtering unit (10), a PFC boosting unit (20), and a full bridge DC-DC isolating converter uni...  
WO/2018/104765A1
A photovoltaic switch apparatus, which includes an input port having two input terminals connectable in circuit across an electrical supply output of a photovoltaic cell arrangement, an output port having two output terminals connectable...  
WO/2018/104808A1
There is provided a method of generating a control strategy based on at least three switching states of a matrix converter. The at least three switching states are selected based on at least a predicted output current, associated with ea...  
WO/2018/094899A1
A smart buck conversion device with a long service life, comprising a high-frequency modulation unit (30), a filter inductor filter unit (50), and an inverter unit (60). The high-frequency modulation unit comprises a first switch transis...  
WO/2018/094898A1
A smart boost conversion device with a long service life, comprising a high-frequency modulation unit (30), an inductance filter unit (40), and an inverter unit (50). The high-frequency modulation unit comprises an energy storage inducto...  
WO/2018/095946A1
The invention relates to a method (72) for operating a brushless electric motor (30) of a motor vehicle (2), particularly an electromotive refrigerant compressor (12), with two sub-motors (64, 66) arranged in sections and each comprising...  
WO/2018/094896A1
A smart sine-wave boost conversion device, comprising: an input rectifier unit (10), a high-frequency modulation unit (30), an inductance filter unit (40), an inverter unit (50), and a filter control unit (20). The high-frequency modulat...  
WO/2018/095782A1
The invention relates to a method for controlling a switching module based on thyristor switching elements. The invention relates, in particular, to a method for controlling at least one switching module wherein the switching module cons...  
WO/2018/094897A1
A smart sine wave buck conversion apparatus, comprising: an input rectifier unit (10); a high frequency modulation unit (30), comprising a first switch transistor (Q7) and a second switch transistor (Q10), a drain electrode of the first ...  

Matches 1 - 50 out of 7,292