Patents for H02M 5 - Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases (13,094)
11/2002
11/21/2002WO2002093730A1 Charge and discharge control device
11/21/2002WO2002093726A1 An apparatus and a method for voltage conversion
11/21/2002WO2002093724A1 Active common mode filter connected in a-c line
11/21/2002WO2002043235A3 Method for controlling a matrix converter
11/21/2002US20020172063 Inverter with a self-commutated pulse converter on the line side and the load side
11/21/2002US20020171473 Active common mode filter connected in A-C line
11/21/2002US20020171294 Voltage fluctuation compensating apparatus
11/19/2002US6483730 Power converters with AC and DC operating modes and methods of operation thereof
11/14/2002US20020167825 Power converter system
11/14/2002DE10122923A1 Dimmer, especially for controlling intensity of lighting devices, has second triac's switch-on delayed with respect to that of a first triac depending on control angle defined by dimmer setting
11/14/2002DE10119664A1 Anordnung zur automatischen Spannungsregelung und Motorantrieb zur automatischen Spannungsregelung An automatic voltage regulator and motor drive for automatic voltage regulation
11/13/2002CN1379522A Power fluctuation compensation device
11/07/2002WO2002089266A1 Apparatus for providing power
11/06/2002CN1378332A High voltage large power frequency-stabilizing voltage regulator
11/06/2002CN1378112A Current source device for latching detection
10/2002
10/31/2002WO2002086647A2 Arrangement for automatically influencing a mains supply and motor drive for said arrangement
10/31/2002US20020161484 Apparatus for providing AC power to airborne in-seat power systems
10/31/2002US20020158470 Portable generator
10/31/2002CA2440908A1 Arrangement for automatically influencing a mains supply and motor drive for said arrangement
10/30/2002EP1253705A2 Two-wire network element for power supply in a house instalation of a switch controlled by an electronic circuit
10/30/2002CN2519528Y Industrial laser printer main current controller
10/29/2002US6472844 Single-phased powered drive system
10/24/2002WO2002084855A1 Power converting device
10/24/2002WO2002084836A1 Dc/dc power supply
10/24/2002US20020153847 Portable device with reduced power dissipation
10/24/2002US20020153778 Ferroelectric transformer-free uninterruptible power supply (UPS) systems and methods for communications signal distribution systems
10/23/2002CN1375918A Non-stop continuous stepped AC voltage regulator
10/17/2002US20020149956 Conversion of single phase to multiple phase alternating current
10/17/2002US20020149950 Power conditioner for solar power generation system
10/16/2002EP1249927A2 Method and system for converting single phase alternating current to multiple phase alternating current
10/16/2002EP1249067A1 Portable device with reduced power dissipation
10/16/2002CN2517168Y Current amplifier using planar transformer
10/16/2002CN1375123A System for controlling the delivery of power to DC computer components
10/15/2002US6466468 Direct conversion programmable power source controller
10/09/2002EP1247329A2 Method for controlling bi-directional switches in matrix converters
10/09/2002CN1373401A Voltagre regulator for electric energy transmission and distribution application
10/08/2002US6462974 Space vector modulation-based control method and apparatus for three-phase pulse width modulated AC voltage regulators
10/03/2002US20020144164 Efficiency-raising and power-saving procedure and its devices
10/03/2002US20020140294 Voltage fluctuation compensating apparatus
10/02/2002DE10114075A1 Stromrichterschaltungsanordnung für Generatoren mit dynamisch veränderlicher Leistungsabgabe Converter circuit arrangement for generators with dynamically variable power output
10/02/2002CN2514547Y Series voltage regulator for power supply line
10/01/2002US6459606 Control system and method for four-quadrant switches in three-phase PWM AC voltage regulators
10/01/2002US6459596 Method and apparatus for a Reduced parts-counts multilevel rectifier
09/2002
09/26/2002US20020136039 Power supply apparatus
09/26/2002US20020135328 Electric power conversion apparatus
09/26/2002US20020135234 Method of commutation of current by bi-directional switches of matrix converters
09/25/2002EP1244204A1 Portable generator
09/25/2002EP1244203A2 Power converter circuit for generators with dynamically varying outputpower
09/25/2002CN2513288Y Frequency changing power device
09/19/2002US20020130648 Power factor corrected UPS with improved connection of battery to neutral
09/18/2002EP1240706A1 Method for operating a 3-phase controller circuit
09/18/2002CN2512154Y Intellectual energy-saving device
09/18/2002CN1369955A Electronic transformer
09/12/2002US20020125854 Universal input/output power supply with inherent near unity power factor
09/12/2002DE10105892A1 Wind power plant and method for operating it has overvoltage limiter during momentary interruption in power supply
09/11/2002EP1239579A1 Portable generator
09/06/2002WO2002029962A3 Power saving circuitry
09/04/2002EP1166430B1 Universal power module
09/04/2002CN1367950A Inverter apparatus for driving compressor motor and method for manufacturing apparatus
08/2002
08/29/2002US20020118556 Power converters with ac and dc operating modes and methods of operation thereof
08/28/2002EP1235322A2 Voltage stabiliser for electrical energy transportation and distribution applications
08/22/2002WO2002065627A1 Apparatus for power transmission
08/22/2002WO2002065611A1 Power system having generator driven by engine
08/21/2002CN2507184Y Voltage regulation energy saving and fraudulent use preventing device for oil pumping machine of oil field
08/21/2002CN1089502C Drive system for engine and control method thereof
08/20/2002US6437997 Control device for electric power translating device
08/20/2002US6437996 Electrical power transmission system
08/15/2002WO2002063755A1 A waveform converting method and apparatus
08/15/2002WO2001071898A8 Improvements relating to converters
08/15/2002US20020109412 Power conversion apparatus and methods using balancer circuits
08/14/2002EP1231822A2 Integrated bridge inverter circuit for discharge lighting
08/14/2002EP1118151B1 Electrical power transmission system
08/14/2002CN1363990A Converter controlled power generator
08/14/2002CN1363983A Compensation-type bidirectional static AC voltage regulator
08/08/2002DE10203217A1 Stromversorgungsvorrichtung A power supply apparatus
08/07/2002EP1120019B1 Circuit for controlling a load to be supplied by an alternating current voltage
08/07/2002CN1362780A Ac-to-AC high-voltage power converting and conversion method
08/01/2002US20020101749 Method and system of harmonic regulation
08/01/2002US20020101222 Power control apparatus and method
07/2002
07/31/2002EP1226480A1 Static voltage regulator
07/30/2002US6426885 Inverter device and motor driving device provided with inrush current prevention circuit
07/30/2002US6426611 Constant voltage lamp controller
07/25/2002DE10103031A1 Current rectification circuit for voltage source inverters with separate energy stores replaces phase blocks with energy storing capacitors
07/25/2002DE10102605A1 Resistance welding device has a regulating unit consisting of a rectifier switch connected at all three phases of an alternating current network and a controllable inverted rectifier
07/24/2002EP0938773B1 Load power control method using a phase control system, and device therefor
07/24/2002EP0886912B1 A converter device
07/24/2002CN1360727A Charge transfer apparatus and method therefor
07/24/2002CN1088282C Power conversion apparatus
07/23/2002US6424135 High power drive from AC and DC sources using cryoelectronics
07/18/2002WO2002056451A2 Ac-to-ac power converter without a dc link capacitor
07/18/2002US20020093840 Method for operating a matrix converter and matrix converter for implementing the method
07/18/2002DE10100196A1 Supplying electrical load e.g. electric motor for vacuum cleaner, involves alternately providing voltage components dependent on second and third phase angles that correspond essentially to first periodic voltage component
07/17/2002CN1359255A Digital type light-adjusting circuit
07/17/2002CN1087882C Frequency converter for outgoing electric driving power to motor and filtering installed on it
07/16/2002US6421366 Method and device for supplying an electric arc melting furnace with current
07/11/2002WO2002054579A1 Mobile power generation system
07/11/2002WO2002054572A1 Bi-directional power supply circuit
07/11/2002US20020089864 Ac-to-ac power converter without a dc link capacitor
07/11/2002US20020089310 Generator set having an inverter
07/11/2002CA2439355A1 Mobile power generation system