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 7 - Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
Patents for H02M 7 - Conversion of ac power input into dc power output; Conversion of dc power input into ac power output (46,189)
10/1988
10/11/1988US4777578 Integrated current sensor torque control for ac motor drives
10/11/1988US4777576 Energy converter with series resonant bridge and switching circuit
10/11/1988US4777423 Method for reducing the instantaneous ripple voltage of an electrical drive fed by a current intermediate-circuit frequency converter with phase sequence quenching
10/11/1988US4777406 High voltage power supply particularly adapted for a TWT
10/06/1988WO1988007784A1 Pulse width modulation converter
10/06/1988DE3709250A1 Invertor for supplying a load with an inductive component
10/05/1988EP0285199A1 Power supply circuit with two output voltages
10/05/1988EP0284915A2 Electrical switching unit
10/05/1988CN88202056U Automatic switch type a.c./d.c power source transducer
10/05/1988CN88101565A Pwm power converter
10/05/1988CN88101557A 晶闸管阀 Thyristor valve
10/04/1988US4775924 Inverter commutation failure prevention method and apparatus
10/04/1988US4775923 Inverter for converting a direct voltage into an alternating voltage
09/1988
09/29/1988DE3709382A1 Method for forming the switching-on signals for the semiconductor switches of an invertor
09/28/1988EP0284412A2 Automatic voltage switching power source
09/28/1988EP0284021A2 PWM power converter
09/28/1988EP0283952A2 PWM inverter controller
09/28/1988EP0155303B1 Inverter circuit with a control circuit for leading transistors more effectively into a turned-off state
09/27/1988US4774650 Method for directing power between three-phase mains and a d.c. circuit
09/22/1988WO1988007286A1 Zener diode detector circuit
09/21/1988EP0283268A1 An overvoltage protection device for thyristor valve
09/21/1988EP0282961A2 Inverter for supplying a load with an inductive component
09/21/1988EP0282953A1 Rectifier transformer
09/21/1988CN88101051A Component for three-phase bridge conversion circuit
09/20/1988US4772997 Method for starting up a converter drive comprising an intermediate current link converter with phase sequence quenching
09/20/1988US4772996 Load current detecting device for pulse width modulation inverter
09/20/1988US4772994 Power source using high-frequency phase control
09/20/1988US4772833 Feedback control system for producing pulse width modulation control signal
09/15/1988DE3706692A1 Oscillation build-up auxiliary circuit for a switched-mode power supply
09/14/1988CN88105494A Waveform reforming inverter and regulator
09/13/1988US4771373 DC power supply with electronically controlled power dissipation
09/07/1988WO1988006814A1 IMPROVEMENTS IN OR RELATING TO D.C. to A.C. INVERTERS
09/07/1988CN87217043U High voltage controllable no arc-back rectifier unit
09/01/1988DE3705866A1 Circuit arrangement for producing (generating) balanced (symmetrical) output voltages
08/1988
08/31/1988EP0280382A2 Inverter control method and apparatus
08/31/1988EP0280235A2 3-phase bridge converting circuit module
08/30/1988US4768142 Power-supply circuit
08/30/1988US4768141 D.c.-a.c. converter having an asymmetric half-bridge circuit
08/24/1988EP0243356A4 Regulated chopped dc power supply apparatus.
08/24/1988CN87215311U Thyristor numeric control inverse change regulator for intermediate-frequency power
08/24/1988CN87214524U Miniature automatic voltage regulator
08/24/1988CN87204648U Inversely changing type middle frequence voltage-lifting converter
08/23/1988US4766327 Circuit and method for synchronizing power sources in a parallel AC electrical power system
08/17/1988EP0278432A1 Bridge arm with free-wheel diodes
08/17/1988EP0278369A2 Control apparatus for cascaded converter circuit
08/17/1988EP0278128A1 Power-supply arrangement
08/17/1988CN87105504A Bridge type fully controlled rectification circuit
08/16/1988US4764857 Power supply start-up circuit with high frequency transformer
08/16/1988US4764856 Power-supply arrangement
08/16/1988US4764684 Static converter comprising a protective filter against high-frequency disturbanes
08/11/1988DE3703218A1 Current limiting for a three-phase invertor which is operated using a servo controller (follow-up controller)
08/11/1988DE3702834A1 AC voltage stabiliser
08/10/1988EP0277564A2 Recorder for a matrix-like recording
08/10/1988EP0277546A1 Semiconductor device having at least one semiconductor body
08/10/1988EP0277193A1 Full wave rectifier circuit.
08/10/1988CN85107270B Control device for inverter
08/09/1988US4763239 Switched mode power supplies
08/09/1988US4763060 AC motor drive method and system using a pulse width modulated inverter
08/09/1988US4763056 Power supply systems for reluctance motors
08/03/1988CN87107983A Improved power supply for totem pole power switches
08/03/1988CN87101134A Waveform reformation technology
08/02/1988US4761728 High voltage generating device
08/02/1988US4761725 Digitally controlled A.C. to D.C. power conditioner
08/02/1988CA1239988A1 Power supply for providing plural dc voltages
08/02/1988CA1239987A1 Inverter control
07/1988
07/27/1988CN87205588U D.c. regulated power supply with scr parallel regulation
07/20/1988EP0275223A1 High-voltage generator circuit with very low current consumption
07/20/1988CN87213624U High voltage continually adjustable electric resource
07/20/1988CN87107636A Static transducer containing filter against high-frequency interference
07/19/1988US4758941 MOSFET fullbridge switching regulator having transformer coupled MOSFET drive circuit
07/19/1988US4758939 Converting apparatus and commutation control method therefor
07/19/1988US4758938 PWM inverter controller for starting and driving an AC motor
07/19/1988US4758117 Method for the transportation of a particulate material at controlled rate
07/14/1988WO1988005224A1 Regulated ac/dc converter
07/13/1988EP0274336A2 Electronic circuitry for converting direct voltage to alternating voltage
07/13/1988EP0274303A1 Inverter regulation system supplying a load by induction
07/13/1988CN87210572U Electric power supply source for primary school laboratory
07/12/1988US4757436 Current-type converter protecting apparatus
07/12/1988US4757434 Control circuit used for a power conversion apparatus
07/12/1988CA1239188A1 Method and apparatus for suppressing resonance phenomena in the a-c network on the inverter side of a high voltage d-c transmission system
07/06/1988EP0273899A1 Pulse width modulation inverter
06/1988
06/30/1988WO1988004879A1 Motor drive unit
06/30/1988WO1988004858A1 Rectifier assembly
06/29/1988EP0272961A1 Housing cabinet for a plurality of electronic subracks for a static non-interrupted power supply
06/29/1988EP0272776A2 Three-phase supply system
06/28/1988US4754390 Conductively cooled switching regulator
06/16/1988WO1988004491A1 Switch circuit
06/15/1988EP0270689A1 Three-phase ac motor controller
06/15/1988EP0257089A4 Switching mode power supply start circuit.
06/14/1988US4751629 Output power regulating system for a portable engine powered electric generator
06/14/1988US4751447 AC motor speed control apparatus
06/14/1988US4751397 Power source circuit for base drive circuits for a transistor inverter
06/14/1988CA1238078A1 Output circuit for an electronic ballast system
06/08/1988EP0270450A1 Low voltage power supply circuit without a step-down voltage network transformer
06/07/1988US4750102 Power converting apparatus
06/07/1988US4750101 Transformer apparatus with rectifier
06/07/1988US4749935 Alternator and controlled rectifier for producing pulse width modulated DC output pulses
06/02/1988WO1988004113A1 Procedure and apparatus for producing an a.c. voltage
06/01/1988EP0269214A2 Power supply and control systems for totem pole switches
06/01/1988EP0268618A1 Process for converting a first ac signal into a second ac signal and converter for performing the process
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