| Patents for H02M 1 - Details of apparatus for conversion (33,954) |
|---|
| 04/03/1991 | EP0224535B1 Static switch circuit or device for the protected supply of a load, and its line |
| 04/02/1991 | US5005211 Wireless power control system with auxiliary local control |
| 04/02/1991 | US5004969 Phase control switching circuit without zero crossing detection |
| 04/02/1991 | US5004957 Dimming control circuit |
| 04/02/1991 | US5004947 Fluorescent lamp ballast with high power factor |
| 03/27/1991 | EP0419217A2 Thyristor converter system with higher harmonics suppression |
| 03/27/1991 | EP0418253A1 Regulating a.c. power controller and method |
| 03/27/1991 | CN1012244B Uninterruptible power source equipment |
| 03/26/1991 | US5003453 Apparatus for a balanced three phase AC power supply in a computer having variable DC loads |
| 03/26/1991 | US5003451 Switched damper circuit for dc to dc power converters |
| 03/21/1991 | WO1991003865A1 Process for control of a multi-stage pulse converter |
| 03/21/1991 | WO1991003864A1 Process and device for determining parameters governing resonance in a power-converter power supply |
| 03/21/1991 | WO1991003863A1 Process and device for the optimum operation of a pulse converter connected to a power supply |
| 03/21/1991 | WO1991003862A1 Device and process for optimum operation of a power converter connected to a power supply |
| 03/21/1991 | WO1991003861A1 Circuit for a controlled power converter |
| 03/19/1991 | US5001623 Automatically switching multiple input voltage power supply |
| 03/19/1991 | US5001620 Power factor improvement |
| 03/19/1991 | US5001400 Power factor correction in electronic ballasts |
| 03/13/1991 | EP0416933A2 Driver circuit for a large capacity switching element |
| 03/13/1991 | EP0416488A2 Method and means for provinding a turn-off blocking signal for a turn-off power semiconductor device |
| 03/13/1991 | EP0416050A1 A device with a multi-phase load, a static converter and choke coils. |
| 03/12/1991 | US4999633 Self-calibrating A/D and D/A converter |
| 03/12/1991 | US4999568 Switching power supply comprising pair of converters for obtaining constant or sinusoidal input current and fixed or variable output voltage |
| 03/12/1991 | CA1281370C Wall box dimmer switch with plural remote control switches |
| 03/06/1991 | CN2072737U Multi-functional safety device for electric equipments |
| 03/06/1991 | CN2072371U Temp.-adjusting electrothermal pot |
| 03/06/1991 | CN1011896B Power switch controller of washer etc. |
| 03/05/1991 | CA1281143C Process for the fault monitoring of an electric valve |
| 02/26/1991 | US4996637 Electrical converter utilizing switched uni-directional and bi-directional energy sources |
| 02/19/1991 | US4994955 Half-bridge driver which is insensitive to common mode currents |
| 02/19/1991 | US4994951 PWM inverter control unit |
| 02/12/1991 | US4992921 Circuit arrangement for supplying a load |
| 02/12/1991 | CA1280204C Regulating power supply for video display apparatus |
| 02/06/1991 | EP0411138A1 Inverter |
| 02/06/1991 | CN1049076A High-voltage large power thyristor assembly structure |
| 02/05/1991 | WO1991002400A1 Feeding device for converters, free of harmonic distortion |
| 02/05/1991 | CA2037927A1 Feeding device for converters, free of harmonic distortion |
| 01/30/1991 | EP0410574A2 Adjustable AC power supply equipment for air-conditioner system |
| 01/29/1991 | US4989260 Transmitter with power reduction to compensate for varying radiated electric field strength when switching between batteries and AC power |
| 01/29/1991 | US4989127 Driver for high voltage half-bridge circuits |
| 01/24/1991 | DE4003849C1 Digital control circuitry for three=phase thyristor bridge - has comparator supplied by shift register and delivering trigger pulses upon imbalance of following trigger pulse distributor |
| 01/23/1991 | EP0409477A2 Inductive inrush current control for off-line battery charger plant |
| 01/23/1991 | EP0409384A2 Method and apparatus for achieving current balance in parallel connected switching devices |
| 01/23/1991 | EP0409328A2 A switched bridge circuit |
| 01/23/1991 | EP0409226A2 Power supply control system |
| 01/22/1991 | CA1279367C Protection circuit for a thyristor converter |
| 01/16/1991 | CN2069632U Large thyristor controlled module |
| 01/15/1991 | US4985664 Electronic ballast with high power factor |
| 01/10/1991 | WO1991000644A1 Ac to dc converter with unity power factor |
| 01/10/1991 | WO1991000643A1 Ac/dc conversion with reduced supply waveform distortion |
| 01/10/1991 | WO1991000642A1 Power supply with integral filter and cooling device |
| 01/09/1991 | CN2069181U Contactless and stepless speed regulator for electric tool |
| 01/08/1991 | US4984148 Two-phase bang-bang current control synchronizer |
| 01/08/1991 | US4984147 Control method for PWM converter |
| 01/08/1991 | US4984146 Suppression of radiated EMI for power supplies |
| 01/02/1991 | EP0406143A1 Indicator light which can be fed by a DC voltage or an AC voltage |
| 01/02/1991 | EP0404913A1 Improved dimming control circuit |
| 01/01/1991 | US4982148 Power factor maintenance system |
| 12/31/1990 | WO1991000564A1 Power supply and oscillator for a computer system providing automatic selection of supply voltage and frequency |
| 12/27/1990 | EP0403595A1 Switched electrical power conversion and balancing |
| 12/26/1990 | CN2068296U Silicon controlled rectifier current transformer power device |
| 12/25/1990 | US4980812 Uninterrupted power supply system having improved power factor correction circuit |
| 12/18/1990 | US4979089 Method for balancing currents to switching devices |
| 12/18/1990 | CA1278039C Voltage converter |
| 12/12/1990 | CN1047772A Pwm conversion current apparatus |
| 12/11/1990 | US4977493 Efficient snubber for rectifier circuits |
| 12/11/1990 | US4977334 Crest factor correction circuit |
| 12/11/1990 | CA1277702C Instantaneous failure compensation circuit |
| 12/05/1990 | CN1010729B Electric power converter |
| 12/04/1990 | US4975822 Harmonic reduction for multi-bridge converters |
| 12/04/1990 | US4975755 Optically controllable static induction thyristor device |
| 12/04/1990 | US4975630 Constant power supply unit of electric heating apparatus |
| 11/28/1990 | EP0399313A2 Inverter circuit utilizing the reserve voltage capabilities of symmetrical gate turn off thyristors |
| 11/27/1990 | US4974141 AC to DC power converter with input current waveform control for buck-boost regualtion of output |
| 11/27/1990 | CA1276991C Ac input free power source |
| 11/22/1990 | EP0398176A2 Harmonic reduction for multi bridge converters |
| 11/21/1990 | CN1047177A Method for controlling pw inverter |
| 11/20/1990 | US4972097 Reference voltage generating circuit in semiconductor device |
| 11/15/1990 | DE3915510A1 Low loss inverter circuit with energy feedback capability - has thyristor switching, voltage and current limitation by wattless components and transformer feedback to source |
| 11/14/1990 | EP0397241A1 Driver for high voltage half-bridge circuits |
| 11/14/1990 | EP0396631A1 Arrangement for controlled energy transfer for electrical supply, especially for reducing switching transients |
| 11/14/1990 | CN2065799U Silicon control current changing device |
| 11/13/1990 | US4970635 Inverter with proportional base drive controlled by a current transformer |
| 11/13/1990 | CA1276227C Input voltage compensated, microprocessor controlled, power regulator and method |
| 11/08/1990 | DE3913932A1 Protection circuit for AC switching of transformer loads - has memory elements to control circuit by detection of current direction |
| 11/07/1990 | CN1010359B Gate signal generator for thyristor valve |
| 11/06/1990 | US4969081 Inverter switch current sensor with shoot-through current limiting |
| 10/30/1990 | US4967334 Inverter input/output filter system |
| 10/30/1990 | US4967332 HVIC primary side power supply controller including full-bridge/half-bridge driver |
| 10/25/1990 | DE3912706A1 Method of reducing noise in pulse-controlled machine - using mean values of wide range of frequencies from pulse generator for processing by pulse width modulator to match control parameters |
| 10/24/1990 | EP0394110A1 Switch control method for power supply by full waves in a three phase circuit |
| 10/24/1990 | EP0393280A2 Power supplies |
| 10/24/1990 | CN2064554U Electronically light changing pullswitches |
| 10/24/1990 | CN1046421A Improvements in gate pulse generator for static var compensator |
| 10/23/1990 | US4965508 Power supply circuit having controllable thyristor network and adjustable voltage regulator |
| 10/23/1990 | CA1275440C Rfi suppression technique for switching circuits |
| 10/23/1990 | CA1275438C Third harmonic auxiliary impulse commutation inverter with means for precharging commutation capacitor |
| 10/20/1990 | CA2014604A1 Efficient initial power-up technique for a switching power supply |
| 10/17/1990 | EP0392770A2 Ballast circuits for discharge lamps |
| 10/17/1990 | EP0392458A2 Improvements in gate pulse generator for static var compensator |