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Patent Searching and Data


Matches 851 - 900 out of 33,041

Document Document Title
WO/2018/113865A1
The present invention relates to a wind turbine with an electrical machine wherein said electrical machine comprises a stator (702) with one or more electrical winding(s)(704), said electrical winding(s) being arranged to be connected to...  
WO/2018/113926A1
The invention relates to a power converter (1) comprising a plurality of modules (1_1... 6_n), each of which includes at least two electronic switching elements (202, 206) and an electric energy store (210). The modules (1_1... 6_n) are ...  
WO/2018/114528A1
The invention relates to a control circuit comprising a two-position controller for controlling a clocked converter having an upper threshold which characterises the switch-off time point of a first converter transistor of the clocked co...  
WO/2018/112663A1
A combined voltage regulator and snubber circuit generally has a voltage regulator device in parallel with the energy storage element of the snubber circuit operatively connectable in series with a leakage inductance current path; the le...  
WO/2018/044359A3
A modular power converter system includes a plurality of active power link modules (APLMs) coupled to each other, each APLM having a plurality of switching devices including first and second switching devices coupled to each other, and a...  
WO/2018/109433A1
A subsea DC to DC voltage converter comprising a DC to AC voltage conversion stage comprising first second' output lines, an AC to DC voltage conversion stage connected to the first and second outputs lines respectively; the DC to AC vol...  
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/2018/108876A1
In a protection arrangement (1) for protecting a transformer (2), an AC source (6) and/or AC sink (6), comprising a transformer (2), of which one winding (3) is connected to an AC source (6) or to an AC sink via a first and a second line...  
WO/2018/108997A1
The invention relates to an apparatus for centrally coordinated reactive power production and control in electrical low-voltage networks. This is a combination of a power supply device for electric vehicles and a remotely controllable re...  
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/2018/109801A1
A power conversion device is provided with a filter unit. The filter unit has: an active filter having an active element and suppressing low frequency components of the common mode noise included in noise, said low frequency components b...  
WO/2018/108090A1
Provided is an electric tool, comprising: an alternating-current power supply module (20) used for accessing an alternating current; a brushless electric motor (12) drivably connected to an output shaft to apply a rotation force to the o...  
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/2018/108356A1
Embodiments of the present invention provide a method of controlling a high-voltage circuit (15) of a vehicle, comprising detecting (310) a fault associated with the high-voltage circuit, reducing (320) a voltage of the high-voltage circ...  
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/2018/107620A1
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/2018/109103A1
The invention relates to a method for controlling a battery-charging device comprising a rectifier stage (11) of three-phase Vienna rectifier type (110) capable of being connected to a single-phase or three-phase electrical power supply ...  
WO/2018/110440A1
A snubber circuit capable of suppressing loss, and a power conversion system using the same are provided. When the magnitude of the voltage between a pair of first voltage points (P11, P12) in a main circuit exceeds a first clamp value, ...  
WO/2018/110787A1
The present technology provides a single-stage interleaved software switching converter. According to a specific embodiment of the present invention, efficiency and costs of a charging device are reduced and harmful electromagnetic waves...  
WO/2018/110312A1
The present invention concerns a method for controlling the temperature of a multi-die power module, the method comprising the steps of: - determining a first weighted arithmetic mean of junction temperatures of the dies of the multi-die...  
WO/2018/105808A1
The present invention relates to a DC-DC converter, and more specifically to a DC-DC converter having a plurality of transformers. The DC-DC converter according to an embodiment of the present invention may comprise: a first transformati...  
WO/2018/104434A1
In the field of high voltage direct current (HVDC) power transmission a line commutated converter (10) includes a plurality of converter limbs (12A, 12B, 12C) that extend between first and second DC terminals (16, 18). Each converter lim...  
WO/2018/107037A1
An electrically conductive material configured having at least one opening of various unlimited geometries extending through its thickness is provided. The opening is designed to modify eddy currents that form within the surface of the m...  
WO/2018/105875A1
A power conversion apparatus according to an aspect of the present invention, which includes first to fifth nodes, comprises: an inverter comprising a first switch between the first node and the second node, a second switch between the f...  
WO/2018/104174A1
The invention relates to a power converter circuit for single-phase systems, comprising a first circuit, a second circuit, and a filter circuit, wherein the first circuit has connection contacts for connecting to a direct voltage, betwee...  
WO/2018/104022A1
The invention relates to a commutating circuit device (100) for reducing the load on at least one semiconductor of a converter (103). The commutating circuit device (100) comprises at least one first contact (105) and a second contact (1...  
WO/2018/105737A1
A device with a built-in active filter has the built-in active filter device (4) and is connected to an AC power supply (3), wherein the active filter device (4) is configured so as to operate on the basis of a detection value detected b...  
WO/2018/103781A1
Current measuring device and method for measuring an electrical current in a current conductor. The invention relates to a current measuring device for measuring an electrical current in a current conductor of a power electronic arrangem...  
WO/2018/104177A1
Power converter circuit for three-phase systems, comprising - an intermediate circuit, - parallel to the intermediate circuit, three arms which are parallel to one another and each have a first circuit, a second circuit and a filter circ...  
WO/2018/100844A1
A drive device (1) controls driving of an opening/closing MOS transistor (Q1) and a protection MOS transistor (Q2) which are interposed in series in a power supply path from a DC power supply (2) to a load (3) and which are connected in ...  
WO/2018/099467A1
An electric vehicle, a DC-DC convertor, and a control method for the DC-DC convertor. The control method comprises the following steps: when a DC-DC convertor works every time, obtaining a total time TA for controlling an H bridge by usi...  
WO/2018/101081A1
The present invention comprises a surge protection circuit and a power supply circuit connected to the surge protection circuit. The surge protection circuit has: an input connection part that has a first connection part and a second con...  
WO/2018/100374A1
Disclosed herein is a rectifier circuit for receiving an AC signal from a receiver coil in an inductive power transfer system. The circuit is configured to operate at an operating frequency. The circuit comprises a Class-E rectifier; an ...  
WO/2018/098974A1
A pulse width modulation method, a pulse width modulation system, and a controller. The method comprises: obtaining modulation parameters of a three-phase inverter, the modulation parameters of the three-phase inverter comprising a degre...  
WO/2018/100014A1
A variable voltage generator circuit is described for generating, from a substantially constant supply voltage VS, a variable high-voltage control voltage VC for a variable power capacitor (1) having a variable-permittivity dielectric. T...  
WO/2018/099552A1
The invention relates to, among others, a method for operating a modular multilevel converter (10) which has at least one converter module (KM1-KM6) with sub-modules (SM) electrically connected in series. Each sub-module (SM) comprises a...  
WO/2018/099564A1
The present disclosure relates to a method of cell selection in a Modular Multilevel Converter (MMC) 1 connected to an AC grid and comprising a plurality of phase-legs 2 each comprising a plurality of series connected converter cells 3 e...  
WO/2018/098975A1
A pulse width modulation method, a pulse width modulation system, and a controller. According to the present application, the rate of change of a common-mode component of a three-phase inverter is changed as the degree of modulation of t...  
WO/2018/100736A1
Provided is a control device for a power conversion device, the control device being capable of timely detecting a current fault in a power conversion device. The control device for a power conversion device is provided with: a current d...  
WO/2018/099187A1
A control method and control device for a motor drive system, and a variable-frequency air conditioner. By means of detecting a DC bus voltage value and a three-phase current value for driving a motor (S10), and according to a DC bus vol...  
WO/2018/100647A1
According to the present invention, a plurality of gate driver units (3, 4) respectively drive a plurality of semiconductor switching elements (SW1, SW2) connected in parallel. A control circuit (5) controls the plurality of gate driver ...  
WO/2018/100051A1
In the field of high voltage direct current (HVDC) power converters there is provided a HVDC power converter (10; 70; 80; 90; 100) which comprises first and second DC terminals (12, 14) for connection to a DC network (16). The power conv...  
WO/2018/095508A1
The invention relates to a converter arrangement (1) comprising a converter (2) which can be switched between an AC voltage supply system and a DC voltage circuit and which has converter valves that extend between AC voltage connections ...  
WO/2018/097794A1
An electric circuit (2) for connection to an electric equipment (1 ) and to a polarity dependent unit (3), the electric system being arranged to receive an input signal from the electric equipment (1 ) and to return an output signal in r...  
WO/2018/095286A1
An electronic speed controller integrated circuit, comprising: a control module (11) and a driving module (12), the control module (11) and the driving module (12) being electrically connected; the driving module (12) further comprising ...  
WO/2018/096640A1
Provided is a highly reliable power conversion device which highly accurately diagnoses abnormality in a motor or a machine driven by the motor. The power conversion device is provided with an acoustic sensor and comprises: an interface ...  
WO/2018/096828A1
A gate drive device that drives a plurality of gate drive-type semiconductor elements (1a, 1b) connected in parallel is provided with: a constant current circuit (3) for supplying constant currents to the gates of the plurality of semico...  
WO/2018/097820A1
A resonant power converter includes a drive circuit coupled to control switching a switching circuit coupled to a resonant tank circuit. A switch control circuit is coupled to control the drive circuit to control the switching of the swi...  
WO/2018/095659A1
The invention relates to a method for regulating an output current (i, iu, iv, iw) of a converter (1) comprising a DC voltage intermediate circuit (Z) and a semiconductor switch (17) in a bridge circuit for converting a DC voltage (Uz) o...  

Matches 851 - 900 out of 33,041