Patents for H02M 7 - Conversion of ac power input into dc power output; Conversion of dc power input into ac power output (46,189)
04/1992
04/30/1992WO1992007418A1 Dc/ac converter
04/30/1992WO1992007417A1 Ac/dc converter
04/30/1992WO1992007416A1 Triphase ac/dc converter
04/29/1992EP0482002A1 Process and device for taking over the regulation of several regulating parameters of a power converter.
04/28/1992US5109185 Phase-controlled reversible power converter presenting a controllable counter emf to a source of an impressed voltage
04/28/1992CA1299650C Parallel operating system for alternate current output converters
04/28/1992CA1299646C Electronic control circuits, electronically commutated motor systems, switching regulator power supplies, and methods
04/22/1992EP0481456A2 Power conversion apparatus
04/22/1992EP0481353A2 High power power supply
04/22/1992EP0481304A2 A power circuit for impressed voltage inverters, with (2*n+1) voltage levels
04/22/1992CN2102584U Phase-shift controlled dc converter
04/22/1992CN1060569A Circuit arrangement
04/21/1992US5107438 Control apparatus for inverter
04/21/1992US5107412 Series resonant inverter, for an x-ray generator
04/16/1992WO1992006531A1 Transportable ac power supply apparatus
04/16/1992DE4032705A1 Induction motor control method - determining stator voltages and switching-in durations for DC-AC regulator supplying motor
04/16/1992DE4029430A1 Power=pack for entry phone using mains supply - has transformer and rectifier with transistor output stages coupled to microphone and loudspeaker indoor system
04/15/1992EP0480746A2 Bypass-pair control apparatus for thyristor bridge
04/15/1992EP0480510A2 Circuit arrangement
04/15/1992CN2101972U Energy and electricity saving controller for refrigerator
04/14/1992US5105352 Offset correction circuit of pwm inverter
04/14/1992US5105182 Direct current power supply device having an alarm provided for power failure under varying load conditions
04/09/1992DE4031505A1 DC supply with switch=on current limiting - has resistor in connection from rectifier to switching regulator
04/08/1992EP0479453A2 Single conversion power factor correction using sepic converter
04/08/1992EP0479196A1 Power supply circuit
04/08/1992EP0478959A2 Parallel resonant circuit converter with frequency corrected transistor current monitoring
04/08/1992EP0478809A1 Method and arrangement for the generation of a 12-phase control signal system from a 6-phase control signal system
04/08/1992CN2101345U Passive suppressor for source current harmonic distortion
04/07/1992US5103389 Frequency range of analog converter by means of external rectifier
04/07/1992US5103388 Low harmonic current and fault tolerant power supply
04/07/1992US5103139 Lamp starting and operating procedure in electronic ballast
04/07/1992CA1298614C Power supply
04/07/1992CA1298612C Voltage regulation for three-phase inverter
04/02/1992WO1992005625A1 Method for controlling a power converter using an auxiliary resonant commutation circuit
04/02/1992WO1992005624A1 Inverter circuit
04/02/1992DE4106045C1 Multi-phase semiconductor three-stage AC inverter - has low inductance capacitors which limit sheet duration voltage transients
04/01/1992EP0478306A1 Apparatus for operating a discharge lamp
04/01/1992EP0477883A2 Auto voltage selector of inverter power supply
04/01/1992EP0477643A2 Control of a discontinuous current by a thyristor rectifier with inductive load
04/01/1992CN1016128B Waveform reforming inverter and regulator
04/01/1992CN1016127B Waveform reformation power supply
04/01/1992CN1016055B Control apparatus of ac elevator
03/1992
03/31/1992US5101244 Semiconductor schottky device with pn regions
03/31/1992CA2052345A1 Power supply circuit
03/31/1992CA1298349C Method and apparatus for determining the actual value of the quenching-angle in the valves of an inverter
03/27/1992CA2052443A1 Apparatus for operating discharge lamp
03/26/1992DE4131240A1 Current supply unit for CRT display of computer terminal - has AC input current rectified and smoothed and includes induction element which stores energy of input current running through rectifier
03/25/1992EP0476463A2 Power converter
03/25/1992EP0476278A2 Low harmonic current and fault tolerant power supply
03/25/1992CN2099901U Signal indicator lamp with luminous diode
03/25/1992CN1059810A Power converter
03/25/1992CN1016031B Power generator
03/24/1992US5099410 Single phase ac power conversion apparatus
03/24/1992US5099409 Semiconductor electric power conversion system enabling fault and/or overtemperature protection
03/24/1992US5099408 System for controlling a PWM inverter having delay time compensation
03/24/1992US5099407 Inverter with power factor correction circuit
03/24/1992US5099138 Switching device driving circuit
03/19/1992WO1992004763A1 System for driving induction motor
03/19/1992DE4029447A1 Energy-efficient ozone generator for continuous prodn. - with inverter having choke with variable inductance and controllable thyristor
03/19/1992DE4029446A1 Rectifier with two function generators for electric motor supply - enables modulating sinusoidal or square waves to be selected with carrier frequency reduced for operator training
03/19/1992DE4029409A1 Amplitude-coupled voltage source e.g. for polyphase motor
03/18/1992EP0475709A2 Inverter control device capable of suppressing DC magnetization in three-phase transformer
03/18/1992EP0475429A2 Voltage multiplier to be connected to an AC voltage source, for example the secondary winding of a transformer
03/18/1992EP0475345A2 AC/DC power converting apparatus
03/18/1992EP0474629A1 Process for compensating a phase and amplitude cycle between a multi-phase actual and set value and circuit for implementing the process.
03/18/1992CN1059625A Capacitor phase-shift triggered current converter
03/18/1992CN1015949B Equipartition type power source
03/17/1992US5097404 Supply circuit or power supply unit for supplying electronic devices or the like with current or voltage
03/17/1992US5097183 Master-slave half-bridge DC-to-AC switchmode power converter
03/17/1992CA1297533C Voltage converter
03/14/1992CA2030475A1 Ac to dc converter
03/12/1992DE4028348A1 DC source for control circuits - has superimposed system for maintaining low voltage from supply voltage pulsing cyclically between min. and max.
03/11/1992EP0474611A2 Current limiting device
03/11/1992EP0474060A2 Four quadrant AC converter
03/11/1992EP0474032A2 Method and device for the generation of a synchronous pulse pattern with fractional pulse number
03/11/1992EP0474031A2 Inverter type power control unit for stud welding
03/11/1992CN1059433A Generator for amplitud-coupled voltages
03/11/1992CN1015849B Pulse width modulation type inverter having temp. compensation
03/11/1992CN1015848B Pwm conversion apparatus
03/11/1992CN1015847B Method for controlling pulse width modulated inverter
03/05/1992WO1992003871A1 Generator for amplitude-coupled voltages
03/04/1992EP0473485A1 Apparatus for generating and emitting an amplitude-modulated power wave
03/04/1992EP0473257A2 Power conversion scheme employing paralleled units
03/04/1992EP0473192A2 A circuit for reducing resonance voltage
03/04/1992EP0472928A1 Circuit arrangement to reduce harmonic currents
03/04/1992EP0472905A2 Three phase to single phase converter
03/04/1992EP0472817A2 Electrostatic spray pistol
03/04/1992CN2098141U Direct current electrostatic suppressor
03/04/1992CN1059239A Circuit for generating pwm signel of converter apparatus
03/03/1992US5093641 Rectifier smoothing filter
03/03/1992US5093614 Three phase delta reference transformer
02/1992
02/27/1992DE4026987A1 Generator for amplitude coupled voltages corresp. to time curves - has tapping system providing output voltages corresp. to different curve shapes
02/27/1992DE4026837A1 Control method for processing voltage desired values - controlling valves of inverter fed with specified input DC voltage to give continuous control of output voltage
02/26/1992EP0472267A2 Optimized, 18-pulse type AC/DC, or DC/AC, converter system
02/26/1992CN1059065A 电子镇流器 Electronic Ballast
02/26/1992CN1059056A Controlling circuit of sine pulse duration modulation
02/26/1992CN1059055A Optimized 18-pulse type ac/dc, or dc/ac, converter system
02/25/1992US5091842 Device for removing d.c. components from output of multi-phase inverter
02/25/1992US5091841 Procedure for the control of frequency converter and rectifier/inverter bridges, and a modulator unit designed for implementing the procedure
02/25/1992US5091840 Power conversion scheme employing shorting means to control current magnitude