Patents
Sitemap › H02 - Generation, conversion, or distribution of electric power › H02M - Apparatus for conversion between ac and ac, between ac and dc, or between dc and dc, and for use with mains or similar power supply systems; Conversion of dc or ac input power into surge output power; Control or regulation thereof › 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
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)
04/2007
04/04/2007CN1941584A Microconsumption AC power supplying method
04/04/2007CN1941535A Power supplier of brushless DC motor
04/04/2007CN1309159C AC voltage-stabilizing, voltage and speed regulating device
04/03/2007US7200018 Charging of a filter capacitor in the intermediate circuit of a frequency converter
04/03/2007US7199637 Rectifier circuit without alternating-current feedback
04/03/2007US7199562 Line frequency switching regulator
03/2007
03/29/2007WO2007035216A1 Load resonant type power supply for ozonizer
03/29/2007US20070069708 Differential mode inductor with a center tap
03/29/2007DE102005044870A1 Circuit arrangement for operating electrical unit e.g. high voltage halogen lamp, has two switches that are designed as bidirectional switches, so that switches block flow of current and let current to flow in both directions
03/29/2007DE10160912B4 Verfahren und Einrichtung zur Steuerung des von mindestens zwei elektrischen Verbrauchern gleicher Leistungsaufnahme, insbesondere Heizkörpern, aufgenommenen Wechselstroms Method and apparatus for controlling the at least two electrical consumers the same power consumption, especially radiators, recorded alternating current
03/28/2007EP1768242A1 Ac power supply unit for regenerating magnetic energy
03/28/2007EP1767067A1 Lamp-dimming through bypassing of phase-cutting
03/28/2007EP1766771A1 Quenching device for a converter bridge with line regeneration
03/28/2007EP1766770A1 Quenching device for a converter bridge with line regeneration
03/28/2007EP1766765A2 Method for controlling an electronic power converter that is connected to a direct-current source
03/28/2007EP1766764A1 Method for switching low-power using ac and system for performing the same and power supply for using the system
03/28/2007EP1470464A4 Extraction of accessory power from a signal supplied to a luminaire from a phase angle dimmer
03/28/2007CN2884682Y All resonance power source circuit device having variable inputting voltage
03/28/2007CN2884649Y High voltage large capacity pulse current capacitor constant current charger
03/28/2007CN1938933A Non-contact electric power supply equipment
03/28/2007CN1938930A Control method and controller for PWM cyclo-converter
03/28/2007CN1936604A Detection circuit for detecting input voltage of transformer detection method
03/27/2007US7196480 Method of soft-starting a switching power supply containing phase-control clipping circuit
03/27/2007US7196436 Solid state relay for switching AC power to a reactive load and method of operating the same
03/21/2007CN2882102Y Frequency-charger cabinet for auxiliary electric machine of electric locomotive
03/21/2007CN2882101Y AC rgulating and controlling DC loading device
03/21/2007CN2881753Y Electric saver with non cut-off voltage regulating function
03/21/2007CN2880347Y Double-tube inversed impact switch circuit in reversed changing welder
03/21/2007CN1934774A Power conversion apparatus with DC bus precharge circuits and methods of operation thereof
03/20/2007US7193404 Load control circuit and method for achieving reduced acoustic noise
03/20/2007US7193337 System and method utilizing a solid state power controller (SSPC) for controlling an electrical load of a variable frequency three-phase power source
03/20/2007CA2441920C Apparatus and method for high-frequency operation in a battery charger
03/15/2007WO2007030176A1 Ride-through method and system for hvac&r chillers
03/15/2007WO2007028350A1 Device for electron energy transfer
03/15/2007WO2007028349A1 Device for electron energy transfer
03/15/2007DE10392735T5 Invertierereinrichtung Invertierereinrichtung
03/15/2007DE102005042324A1 Weitspannungs-Umrichter Wide voltage converters
03/15/2007DE102005042322A1 Wide range voltage converter, has mains side and load side current converters where alternating current side of mains sided converter is linked with reactance coil whereby direct current intermediate circuit shows direct current condenser
03/15/2007DE102005040549A1 Pulswiderstand Pulsed resistor
03/15/2007CA2622089A1 Apparatus for electrical power transmission
03/15/2007CA2622057A1 Apparatus for electrical power transmission
03/14/2007EP1763126A1 Pitch control battery backup methods and system
03/14/2007CN2879524Y Three-phase AC sine wave electronic booster
03/14/2007CN2879523Y Electricity saving controller for AC welding machine
03/14/2007CN2879522Y Industrial intelligent stabilized voltage-regulator
03/14/2007CN2879212Y New high-voltage transducer low energy consuming load testing device
03/14/2007CN1930766A Power converter, inverter x-ray high voltage unit, fluoroscopic system, x-ray CT system, MRI system
03/13/2007US7191007 Spatially decoupled twin secondary coils for optimizing transcutaneous energy transfer (TET) power transfer characteristics
03/13/2007US7190601 Pulse-width modulation method for a frequency converter
03/13/2007US7190597 Control of an inverter pulse-width modulator
03/13/2007US7190143 Pulse width modulation (PWM) rectifier with variable switching frequency
03/13/2007CA2305536C Phase controlled dimming system with active filter for preventing flickering and undesired intensity changes
03/08/2007WO2007027158A1 A load detector for an ac-ac power supply
03/08/2007WO2007025828A1 Converter circuit comprising distributed energy stores
03/08/2007WO2006120629A3 Method and circuit for enabling dimming using triac dimmer
03/08/2007US20070053213 Wide-voltage-range converter
03/08/2007US20070052397 Method and apparatus for electronic power control
03/08/2007DE102005042615A1 Schaltung, Schrumpfbefestigung und Verfahren zur Regelung Circuit, shrink attachment and method for controlling
03/08/2007DE102005042321A1 Multiple voltage inverter e.g. three phase motor, for use as e.g. diode rectifier, has network side inverter provided with filter, and charge side inverter provided with direct current voltage condenser
03/08/2007DE102005042319A1 Large voltage converter with network side converter, has n circuit boost-buck converter device which has n load side converters and n transformers
03/08/2007CA2620441A1 Converter circuit comprising distributed energy stores
03/07/2007EP1760870A2 High voltage rectifier
03/07/2007EP1759450A1 Low harmonic multiphase converter circuit
03/07/2007EP1759448A2 Method for determining the chance of a disturbance-free operation of a frequency converter
03/07/2007CN2877130Y Program controllable thyristor step down transformer low-voltage large current nitriding furnace power suppey device
03/07/2007CN2877129Y Multipurpose welder
03/07/2007CN1926753A DC-DC converter with coupled-inductors current-doubler
03/07/2007CN1926742A Method for operating electric generator frequency-converter and wind-power turbomachine having electric generator operated by the method
03/07/2007CN1925568A Switch modulating method and circuit thereof
03/07/2007CN1925302A Control device for geometric proportion driven power supplying apparatus
03/06/2007US7187569 Signal generation apparatus and method for seafloor electromagnetic exploration
03/06/2007US7187566 Three-phase rectifier
03/06/2007US7187229 Active filter for reduction of common mode current
03/06/2007US7187149 Commutation technique for an AC-to-AC converter based on state machine control
03/01/2007WO2005124990A3 Ground power unit
03/01/2007DE102006032476A1 Leakage current limiter for DC voltage intermediate circuit has Ohm's resistance to generate voltage drop for current supply to output when DC voltage intermediate circuit is switched ON
03/01/2007DE102005041087A1 Static inverter circuit has interconnect points formed between semiconductor switches for connection terminals of two-pole subsystem and connection to reference potential connection of electronics
03/01/2007DE102005040543A1 Stromrichterschaltung mit verteilten Energiespeichern Converter circuit with distributed energy stores
02/2007
02/28/2007EP1756937A2 Ground power unit
02/28/2007CN2874914Y Circuit improved structure of electronic transformer
02/28/2007CN2874913Y Power supply device of smelting quartz production furnace
02/28/2007CN2874907Y Automatic regulating voltage multiphase permanent magnet wind power generator
02/28/2007CN1922926A Induction heating or melting power supply utilizing a tuning capacitor
02/28/2007CN1922780A Device for covering the peak load
02/28/2007CN1920588A Device for failure analysis of surge protector lightning protection component
02/28/2007CN1302593C Compressor controller
02/27/2007US7184279 Solid state switching circuit
02/27/2007US7183670 Power supply for electronic switch
02/22/2007WO2007021699A1 Commutation technique for an ac-to-ac converter
02/22/2007WO2006005060A3 Energy recovery system
02/22/2007WO2005079227A3 Method and system for communicating filter compensation coefficients for a digital power control system
02/22/2007DE102005061565A1 Elevator system, has three phase machines whereby feed back converter has network sided main clocked-rectifier and self commutated pulse current rectifier which are directly linked with each other on DC voltage side
02/21/2007EP1755213A1 Method and device for producing rectifier gating signals using a peak detector
02/21/2007CN2872732Y AC sinusoid electronic voltage adjuster
02/21/2007CN2872450Y Energy-saving power adjuster
02/21/2007CN1917348A Three-phase power control system and its control method
02/21/2007CN1917346A Electronic apparatus and control method of the driving voltage
02/21/2007CN1917345A Voltage adjustable drive in AC power source of sine wave
02/20/2007US7180761 Constant voltage control apparatus capable of reducing feedback lines
02/20/2007US7180270 Frequency converter for high-speed generators
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