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)
07/2004
07/06/2004US6759765 Sag generator with plurality of switch technologies
07/01/2004WO2004032305A3 Circuit and fault tolerant assembly including such circuit
07/01/2004US20040125625 Method and apparatus for controlling the power supplied to a load
07/01/2004US20040125622 Current detection unit of inverter
07/01/2004DE19751828B4 Verfahren und Vorrichtung zur Erkennung und Steuerung von elektronischen Schaltnetzteilen oder konventionellen Transformatoren, jeweils mit oder ohne ohmscher Last, insbesondere von Beleuchtungseinrichtungen Method and apparatus for detection and control of electronic switching power supplies or conventional transformers, each with or without resistive load, in particular lighting devices
06/2004
06/30/2004EP1434340A2 Isolated low voltage power supply
06/30/2004EP1434339A2 Circuit for power supply
06/30/2004CN1156200C Ballast system
06/24/2004WO2003026501A8 Non-invasive device and method for the diagnosis of pulmonary vascular occlusions
06/24/2004US20040119454 Distributed system and methodology of electrical power regulation, conditioning and distribution on an aircraft
06/24/2004US20040119448 Method and apparatus for electronic power control
06/24/2004US20040119439 Cooling arrangement in frequency converter
06/24/2004DE10254236A1 Frequenzumrichter Frequency
06/23/2004EP1432110A1 Phase current detector
06/23/2004CN1507154A Electronic switch for electric equipment
06/23/2004CN1507143A Great power IF power source with double parallel resonant inversion circuit
06/23/2004CN1507139A Electronic reactor for great power IF power source
06/23/2004CN1506786A Washing machine controlled via power electronic circuit
06/22/2004US6754092 Method and apparatus for reducing power consumption for power supplied by a voltage adapter
06/22/2004US6754090 AC/DC/HFAC/DC/AC power supply
06/22/2004US6753670 Universal energy regulating controller circuit
06/17/2004WO2004051389A1 Method for powering electronic control modules and corresponding installation
06/15/2004US6751106 Cross current control for power converter systems and integrated magnetic choke assembly
06/15/2004US6750633 Electrical circuit for generating a three-phase alternating current
06/15/2004US6750563 Voltage sag and over-voltage compensation device with pulse-width modulated transformer
06/10/2004US20040108836 Uniterruptible power supply and its starting method
06/09/2004CN1502918A Control circuit and method for current inversion motor of current inversion air conditioner
06/08/2004US6747884 Power converter device
06/08/2004US6747881 Frequency converter
06/03/2004US20040105199 Charging circuit for a frequency converter
06/03/2004DE10252234A1 Verfahren zum Betrieb eines Matrixkonverters sowie Matrixkonverter zur Durchführung dieses Verfahrens A method for operating a matrix converter and a matrix converter for implementing this method
06/02/2004EP1423908A1 Electrical power conservation apparatus and method
06/02/2004EP1423907A1 Power supply for induction heating or melting
06/02/2004CN2619414Y Light control energy saving cnotroller for drinking water device
06/02/2004CN2619407Y Small static high voltage power supply and detector
06/02/2004CN2619406Y 220V Ac power supply card type distributor
06/02/2004CN1152466C Non-stop continuous stepped AC voltage regulator
06/01/2004US6744650 Method for controlling a matrix converter
05/2004
05/27/2004WO2004045058A1 Method for operating a matrix converter and matrix converter for carrying out said method
05/27/2004WO2004045055A1 Filter
05/27/2004WO2004045054A1 Filter device
05/27/2004WO2004045043A1 Filter
05/26/2004EP1422818A1 Frequency converter
05/26/2004EP1422817A2 Vorrichtung zur Umwandlung einer dreiphasigen elektrischen Quelle in eine einphasige elektrische Versorgung
05/26/2004EP1239579B1 Portable generator
05/26/2004EP1198876B1 System for controlling the delivery of power to dc computer components
05/25/2004US6741485 Interconnection system for transmitting power between electrical systems
05/25/2004US6741068 Voltage stabilizer for electrical energy transportation and distribution applications
05/25/2004CA2140061C Asymmetrical ac trigger simulation
05/21/2004WO2004042890A1 Direct turbogenerator
05/20/2004US20040095784 Reduced capacitance AC/DC/AC power converter
05/20/2004US20040095099 Apparatus for power transmission
05/19/2004EP1057250B1 Device for controlling inverters
05/19/2004DE10252653A1 Controlling flow of power from supply network to AC device, e.g. for controlling fan, pump etc. by connecting operating voltage of microcontroller to neutral conductor of supply network
05/19/2004DE10248971A1 AC powered motor frequency converter especially for elevators and lifting equipment, has low-pass setter connected between rectifier and intermediate circuit
05/19/2004CN1497830A Control power supply device for electroplating
05/13/2004US20040090200 Power supply apparatus for motor and control method thereof
05/13/2004DE4406371B4 Verfahren zur Helligkeitssteuerung für Glühlampen und Schaltnetzteile Method for controlling the brightness of bulbs and Switching Power Supplies
05/12/2004CN2615948Y Thermal connecting & disconnecting secondary power supply for electric system automation equipment
05/06/2004WO2004038901A2 Zero-voltage-switching single-switched resonant dc link with minimized conduction loss
05/06/2004WO2004038892A2 Hybrid variable speed generator/uninterruptible power supply power converter
05/06/2004US20040085049 Ac voltage regulator apparatus and method
05/06/2004US20040084965 Hybrid variable speed generator/uninterruptible power supply power converter
05/06/2004EP1416620A1 Driver circuit for two unidirectional current switches
05/06/2004EP1416604A2 Electric circuit for a driven generator with segmented stator
05/06/2004EP1415388A2 Odd harmonics reduction of phase angle controlled loads
05/06/2004EP0856936B1 Motor controller
05/05/2004CN1148863C Harmonic suppression equipment for air conditioner and its suppression method
05/05/2004CN1148862C Pulse current generator operating in short-circuit and shunt mode
05/05/2004CN1148622C Method and apparatus for electronic power control
05/05/2004CA2411132A1 Direct turbogenerator
05/04/2004US6731525 H-bridge electronic phase converter
05/04/2004US6731522 Power generation apparatus using permanent-magnet generator
04/2004
04/29/2004WO2003067745A8 Static electric power converter for modulating electric power exchanged between at least a voltage source and a current source
04/28/2004EP1414284A2 Cooling arrangement in frequency converter
04/28/2004EP1414144A1 Method and apparatus for the average power control of an AC load
04/28/2004EP1413041A1 Electronic control systems and methods
04/28/2004CN1492576A Method and device for controlling inductive motor regenerated energy flow and DC bus voltage in frequency modulation driving system
04/28/2004CN1492565A Multiple machine integrated brushless motor variable frequency unit
04/28/2004CN1147988C Alternating-current controlling method and device
04/27/2004US6728120 Rectifier apparatus for high voltages
04/27/2004CA2343247C Method for controlling a power drive system
04/22/2004WO2003067929B1 Extraction of accessory power from a signal supplied to a luminaire from a phase angle dimmer
04/22/2004US20040075965 MOSFET based, high voltage, electronic relays for AC power switching and inductive loads
04/22/2004US20040075414 Driving apparatus and method of three phase induction motor
04/22/2004DE10246526A1 Control process for a matrix inverter uses a serial superposition of all input phases and employs neighboring switches in commutation
04/22/2004DE10245872A1 Device and process to determine the output frequency of a current inverter converts it into a one bit digital signal which is integrated and compared with a reference value
04/21/2004EP1411754A1 Electronic ballast circuit
04/21/2004EP1411628A1 Driving apparatus and method of three phase induction motor
04/21/2004EP1410488A2 Energy converting device
04/21/2004CN2613095Y Plug type light-controlled electronic transformer
04/21/2004CN1491474A Power system having generator driven by engine
04/21/2004CN1490929A Driver of three-phase inductive motor and method thereof
04/21/2004CN1490914A Apparatus for maintaining voltage in AC voltage power supply net and operational method thereof
04/15/2004WO2004032305A2 Circuit and fault tolerant assembly including such circuit
04/15/2004US20040070359 Arrangement for automatically influencing a mains supply and motor drive for said arrangement
04/15/2004DE10042624B4 Dreipegel-Wechselrichter-Vorrichtung Three-level inverter device
04/14/2004EP1407538A1 Method and device for shutting down a drive comprising a matrix converter, during a mains failure
04/14/2004EP1407531A2 Method and device for short-circuiting temporary power failures in a matrix converter
04/14/2004CN2612105Y Voltage-regulating socket
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