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)
06/1998
06/09/1998US5764022 Air conditioner and inverter driving circuit therefor
06/04/1998WO1998024173A1 System for operating industrial plants in the megawatt range
06/04/1998DE19648806A1 Antriebssystem im Megawattbereich für Industrieanlagen Drive system in the megawatt range for industrial plants
05/1998
05/28/1998WO1998022959A1 Saturation choke coil
05/27/1998EP0843913A1 Appliance ac power control apparatus
05/27/1998CN2282735Y Power-controlled electricity-saving socket for guest room
05/26/1998US5757165 Snowmobile handlebar heater control
05/20/1998CN2282300Y Touching voltage regulating switch
05/20/1998CN2282299Y Thyristor three phase ac voltage regulator
05/19/1998US5754420 Rotating field transformer
05/19/1998US5754045 Power line switching apparatus
05/19/1998US5754036 Energy saving power control system and method
05/14/1998DE19645742A1 Dimmer circuit for compact electronic fluorescent lamps
05/13/1998EP0840949A1 Power converter drive
05/13/1998CN1038375C Control and protection system for AC-DC conversion system
05/06/1998CN1180956A Motor control apparatus, and motor drive apparatus and air-condictioner
05/05/1998US5747973 Current regulating switch circuit
05/05/1998US5747972 Method and apparatus for electronic power control
05/05/1998US5747774 Heat fixing apparatus with temperature control based on AC power waves
04/1998
04/29/1998EP0838894A1 Electric power converter for ac electric vehicles
04/29/1998EP0788678B1 Method and device for load power control via a phase adjustment system
04/23/1998WO1998016992A1 Adjustable three-phase transformer
04/22/1998EP0837549A2 PWM/PAM control mode switching type motor control apparatus, and motor drive and air-conditioner using the same
04/22/1998CN2279758Y Controller for electromagnetic wave elimination electric heating blanket
04/22/1998CN1179643A Three-phase matrix converter ans method for operation
04/21/1998US5742515 Asynchronous conversion method and apparatus for use with variable speed turbine hydroelectric generation
04/21/1998US5742493 Power conversion apparatus
04/21/1998US5742105 Trickle power supply
04/16/1998WO1998015886A1 Advanced electronic power regulator
04/16/1998DE19705672A1 Antrieb für eine Vakuumpumpe Drive for a vacuum pump
04/16/1998DE19642388A1 Power regulation method for ohmic or inductive/ohmic load
04/15/1998CN1179028A Power source change-over device
04/15/1998CN1038088C Method and apparatus for elimination or reduction of harmanic and/or resonance
04/08/1998EP0834214A1 Rectification, derectification and power flow control
04/08/1998CN2278303Y Intermediate frequency power supply device for high-frequency vibrator used in construction
04/07/1998US5737201 Electronic device for electrical energy conversion between a voltage source and a current source by means of controllable switching cells
04/07/1998US5737196 Electrical power generating system producing alternating and direct current
04/07/1998US5736795 For controlling the supply of alternating electric current to a load
04/01/1998EP0833431A2 Three-phase matrix converter and method of operating same
04/01/1998EP0832006A1 High voltage power converter system
03/1998
03/26/1998WO1998012797A1 Interconnection system for electrical systems having differing electrical characteristic
03/25/1998EP0830809A1 Phase control circuit having independent half cycles
03/25/1998CN1177232A Paralleled converter for induction furnace
03/24/1998US5731971 Apparatus for providing multiple, phase-shifted power outputs
03/24/1998US5731681 Motor control system for centrifugal machine
03/19/1998WO1998011655A1 Method and device for providing power to a magnetron
03/18/1998EP0770282B1 Direct a.c. converter
03/18/1998CN1176523A Electric power conversion apparatus and its controlling method and uninterruption power source device using the same
03/17/1998US5729445 Regulated power supply unit with an electronic transformer
03/12/1998WO1998010509A1 Power unit
03/12/1998DE19730364A1 Power converter for three phase input and output
03/11/1998CN2276221Y Capacitance type charger
03/11/1998CN1175815A Load control device
03/10/1998US5726873 Control circuit for cryogenically-cooled power electronics employed in power conversion systems
03/10/1998US5726550 Motor control system for centrifuge
03/04/1998EP0827253A1 Intermittent on/off regulator type DC power supply circuit
03/04/1998EP0744118B1 Regulated power supply unit with an electronic transformer
03/04/1998CN1175121A Method fo automatically changing upper, balanced and lower voltage in electric power saving transformer and device of the same
03/04/1998CA2184674A1 Intermittent on/off regulator type dc power supply circuit
02/1998
02/25/1998EP0782784B1 Process for regulating a four-quadrant regulator operating as a mains converter
02/19/1998WO1998007166A1 High power drive from ac and dc sources using cryoelectronics
02/18/1998CN2274841Y Remote controlling transformer with integrated switches
02/18/1998CN1173962A Ballast system
02/18/1998CN1037478C Single phase electropically commutated motor system and method
02/17/1998US5719493 Electrical device
02/17/1998CA2062649C Power conversion apparatus
02/17/1998CA2053381C Power conversion apparatus
02/15/1998CA2188373A1 multifunction adaptive controls for tapswitches and capacitors
02/12/1998DE19632129A1 Power regulator power supply circuit
02/11/1998CN1173066A Protable power unit
02/11/1998CN1172746A Drive system for engine and control method therefor
02/11/1998CN1172635A Portable low-voltage electric heater capable of regulating power by using inverter
02/05/1998WO1998005089A1 A phase control device
02/05/1998WO1998004964A1 Energy saving power control system
02/04/1998EP0822646A2 Load control device
02/04/1998EP0822645A2 Trickle power supply
02/03/1998US5715151 Control and protection system for AC-DC conversion system
02/03/1998US5714847 Power regulator
01/1998
01/30/1998CA2211661A1 Trickle power supply
01/29/1998WO1998004030A1 Energy loss-reduction system
01/29/1998DE19628586A1 Motorspeiseschaltung und Verfahren zum Ansteuern eines Motors Motor power supply circuit and method for driving a motor
01/28/1998EP0820893A2 Traction system for rail vehicle and control method therefor
01/28/1998EP0820656A1 Energy control device
01/22/1998WO1998002960A1 Motor power supply and method for controlling a motor
01/21/1998CN1037139C AC and dC dual-purpose high voltage controllable power supply for current transformation technology
01/21/1998CN1037130C 3-phase symmetrically inputting single phase power supply transformer
01/14/1998EP0818868A2 Inductive power distribution system
01/14/1998CN2272630Y Multi-function safety electronic transformer
01/14/1998CN2272303Y Inverse converting switch power source for therapeutic band
01/08/1998DE19626528A1 High-power voltage converter e.g. for electric drives on railways
01/07/1998CN2272167Y Special power supply for measuring experiment
01/07/1998CN1169783A Mtthod and apparatus for electronic power control
01/07/1998CN1169618A Voltage type inverter and control method thereof
01/07/1998CN1169617A Regulated dc. power-supply circuit for intermittent switch
01/06/1998US5705904 Frequency converter device which adaptively responds to a power failure
12/1997
12/31/1997CN2271775Y Thyratron transistor electric controller
12/24/1997CN1168565A Watt consumption controlling circuit
12/17/1997CN2271067Y Outer bridge self-exciting starting thyristor parallel inverter
12/16/1997US5698969 Apparatus and method for interline power flow control
12/11/1997WO1997047070A1 Ac/ac converter
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