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Matches 501 - 550 out of 7,500

Document Document Title
WO/2013/097862A3
A wind turbine generator is disclosed herein. In a described embodiment, the wind turbine generator comprises an electrical generator 101 configured to generate AC signals, a plurality of power converters 110,112,111 operated by a gating...  
WO/2014/056297A1
A control and regulation arrangement configured to deliver electrical power to an appliance, the arrangement comprising:a housing;an input connection for coupling to a electricity supply;an output connection for coupling to an appliance;...  
WO/2014/014912A3
Methods and systems are described for providing a high frequency high voltage source. For example, a power source for use in a particle accelerator, an arc welder or an inductive heater.  
WO/2013/124374A8
An AC-AC converter system (500) comprises transformers and converter units (540a, b) on primary and secondary sides (550a, b) of the system, respectively. The converter system is connected to first and second AC networks (550a, b) and th...  
WO/2014/044089A1
An on-line uninterrupted power supply topology. A single-phase topology comprises a major loop and an auxiliary loop. A power conversion stage of the major loop includes first to fourth branches connected in parallel between a positive b...  
WO/2014/046012A1
The present invention is a single-phase/three-phase direct conversion device having an improved input amplitude modulation factor. During a first period (T1) during which, when the AC waveform outputted by a single-phase AC power supply ...  
WO/2013/085393A3
There is described an apparatus (2) for transferring electrical power to a rotating shaft (13, 43), the apparatus (2) comprising : - a first winding (21) in a stationary part of the apparatus (2) around the shaft (13, 43); - a second win...  
WO/2013/071933A3
This invention relates to a method of downscaling idle energy consumption of a transformer having a primary and a secondary side positioned between a linear actuator system connected to the secondary side and an electrical AC supply conn...  
WO/2013/189952A3
The invention relates to a reversible matrix converter circuit with n levels per phase comprising n conversion arms exhibiting on one side n ends for generating or receiving respectively n intermediate DC voltage levels, and exhibiting o...  
WO/2014/031585A2
A system and method for performing diagnostics in a medium voltage drive. The system includes a power cell and a bypass mechanism. The bypass mechanism is operably connected to output terminals of the power cell and configured to create ...  
WO/2014/030202A1
A power converter (1) is equipped with three AC input terminals provided per phase on the three-phase AC input side, a reactor connected to each of the AC input terminals, one AC output terminal provided per phase on the three-phase AC o...  
WO/2014/030259A1
Provided is a voltage control apparatus that can step up the voltage of an inputted polyphase alternating current and stably supply high voltage. The voltage control apparatus (10) is provided with: a zero-crossing detection means (20) t...  
WO/2014/027198A1
A method for determining power consumption reduction and/or energy saving arising from the use of a voltage regulation device (1) is described. The method comprises calculating a power reduction and/or energy saving resulting from use of...  
WO/2014/028866A2
An energy efficient apparatus includes a switching device, a frequency dependent reactive device, and a control element is provided. The switching device is coupled to a source of electrical power and includes a pair of transistors and i...  
WO/2014/020703A1
A matrix converter according to one embodiment comprises a plurality of bidirectional switches arranged between an AC power source and an AC load, and a control unit for controlling the plurality of bidirectional switches. The control un...  
WO/2014/020898A1
In the present invention, soft-switching is maintained for a power converter that is capable of bidirectional power transfer. This power converter is equipped with a phase bridge (1), a phase bridge (2) that is connected in parallel to p...  
WO/2014/016532A2
The present invention concerns an adjustment device intended to equip electrical networks, and more particularly a device for dynamically adjusting the voltage 3 of an electrical network having a first voltage 1 and an electrical network...  
WO/2014/014912A2
Methods and systems are described for providing a high frequency high voltage source. For example, a power source for use in a particle accelerator, an arc welder or an inductive heater.  
WO/2013/124374A3
An AC-AC converter system (500) comprises transformers and converter units (540a, b) on primary and secondary sides (550a, b) of the system, respectively. The converter sytem is connected to first and second AC networks (550a, b) and the...  
WO/2013/110282A3
A control system for one or more power stacks in a power converter is disclosed, each power stack comprising a plurality of electronic switches, said control system comprising one or more controllers, wherein a distributed clock signal f...  
WO/2013/043974A3
An airplane ground support system includes a multi-voltage power supply (20). This system includes an air conditioning module, a control module (22), and a power supply module which has an A.C. power input, at least one power output, wit...  
WO/2014/007803A1
An electrical ballast system having a toroidal current transformer having a core with a gap of predetermined dimensions, a primary winding, and a secondary winding. The primary winding is connected in series to a lamp load circuit and th...  
WO/2014/005639A1
The invention relates to a device (100) for a three-phase load (200). In order to provide an improved device (100) for a three-phase load (200), which device can be constructed in an in particular space-saving and cost-saving manner, the...  
WO/2014/000490A1
The present invention provides a five-level power converter and its controlling method. The five-level power converter comprises an inverter and at least one rectifier. Said rectifier comprises at least one rectify-controlling circuit an...  
WO/2014/004289A1
A three phase full resonant cyclo-converter (95) suitable for converting a three phase AC supply to a DC output. In one embodiment the cyclo-converter consists of two half bridge cyclo-converters (96,97) driving a resonant circuit. The m...  
WO/2014/001402A1
Constant current regulator (10) for supplying a series circuit (9) of a lighting installation with an output electrical power corresponding to a predetermined output power, comprising a plurality of modules (13) electrically connectable ...  
WO/2013/189952A2
The invention relates to a reversible matrix converter circuit with n levels per phase comprising n conversion arms exhibiting on one side n ends for generating or receiving respectively n intermediate DC voltage levels, and exhibiting o...  
WO/2013/186065A1
The invention relates to a method for estimating the value of a braking resistor (Rf) used in a power converter connected to an electric motor (M). The power converter comprises a braking cell (CelF) connected to the first power supply l...  
WO/2013/007836A3
The invention relates to a method for controlling a cycloconverter (20), which is designed to a connect a first three-line network (30) to a second three-line network (31), wherein the cycloconverter (20) has six converter branches (32, ...  
WO/2013/185847A1
The present invention relates to a power converter adapted to convert at least one AC input voltage into an AC output voltage, a power converter (2) comprising: an input signal conversion circuit (6) having half-bridge connected switches...  
WO/2013/098844A3
This invention relates to electric-power generation system from multiple sources like generator windings 10,20,30. Excitation to windings is controlled by controller 16,26,36, which generates appropriate switching-pattern based on power ...  
WO/2013/179463A1
This power conversion apparatus is provided with a plurality of power conversion circuits (1), each of which is configured of switching elements (4). The power conversion apparatus is also provided with: direct current conductive bodies ...  
WO/2013/178505A1
The present invention relates to a half bridge induction heating generator, comprising at least one power terminal (10) provided for a direct current voltage, at least one ground terminal (12), and four capacitors (C2, C3, C4, C5) formin...  
WO/2013/171800A1
A first period in which a voltage Vin is equal to or greater than a positive first reference voltage, a second period in which the voltage Vin is equal to or less than a negative reference voltage, and a third period in which the voltage...  
WO/2013/166870A1
A multilevel inverter comprises a first boost apparatus (102) having an input coupled to a positive dc bus and a second boost apparatus 106) having an input coupled to a negative dc bus. The multilevel inverter further comprises a first ...  
WO/2013/020998A3
It is described an arrangement for providing an AC current to a load for direct electrical heating, the arrangement comprising a AC-DC-AC converter cell (133, 433, 533, 633, 733), the converter cell having at least two converter input te...  
WO/2013/163863A1
Provided is an ECM motor controller adapting for various frequencies and power supply voltages. The controller comprises a motor microprocessor, an inverter, a signal detection and feedback circuit, as well as a power supply. The power s...  
WO/2013/127910A3
The invention relates to a power-supply system comprising at least one power-supply module 1 for supplying power to at least one electrical appliance 2, and generating, from a voltage Vl and a current Il, from a high-voltage line 4, an i...  
WO/2013/057399A3
The invention relates to a low DC voltage supply system (100) for at least one electronic communication device (3; 6) in a broadband over power line communication system, further comprising a broadband over power line coupler including a...  
WO/2013/158605A1
A dual function solid state power converter operable from a three phase AC input current simultaneously provides; an AC or DC output current on an aircraft power cable which extends from a stowed position to provide ground power to a par...  
WO/2013/153571A1
The purpose of the invention is to provide a power conversion device capable of supplying a constant voltage to a load against a wide range of voltage variation of an AC power supply while avoiding size increase, cost increase, and effic...  
WO/2013/152910A1
The invention relates to a control transformer, designed as a phase-shifting transformer, wherein semiconductor switching elements are provided for each phase on a control winding (2, W1, W2, W3) having a plurality of partial windings (W...  
WO/2013/149458A1
A UPS power source based on a phase-shifting auto-transformer and dual 6-pulse rectifiers comprises a 12-pulse phase-shifting auto-transformer T1, two paths of output devices, energy storage devices, bypass static switch devices and char...  
WO/2013/150572A1
Provided is a power conversion device capable of supplying a fixed voltage to a load even when the voltage of a three-phase AC power supply fluctuates. A series circuit comprising a switching element (Q1) and a switching element (Q2), an...  
WO/2013/007783A3
The invention relates to a method for operating a first and a second electrical load in an alternating current network. The method can be operated in an optional first operating mode, in which the positive and negative half waves for eac...  
WO/2013/033801A3
A control method and system is described for home appliances which comprise one electric motor (7) having at least two coils. The coils of the electric motor (7) are combined in series or in parallel due to the input voltage (1) and are ...  
WO/2013/147933A1
An apparatus provides electrical power to a ship in port. A first interface interconnects the apparatus with a power grid of the port receiving an input power signal. A second interface interconnects the apparatus with an electrical powe...  
WO/2013/148221A1
A load control device adapted to control the amount of power provided to an electrical load utilizing a phase control signal that operates in a reverse phase control mode, a center phase control mode, and a forward phase control mode. Th...  
WO/2013/145854A1
Provided is an electrical power conversion apparatus that suppresses the increase in leakage current when reverse voltage is applied to a reverse blocking insulated gate bipolar transistor so as to reduce loss caused by the leakage curre...  
WO/2013/143623A1
The invention relates to a method for operating a converter circuit (1). The controllable power semiconductor switches of the rectifier unit (2) of the converter circuit (1) are controlled using a rectifier switch signal (SG), and the co...  

Matches 501 - 550 out of 7,500