| 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) |
|---|
| 05/16/1978 | US4090235 Power frequency converter |
| 05/02/1978 | US4087702 Digital electronic dimmer |
| 04/25/1978 | US4086622 Frequency converter and method of operating same |
| 04/25/1978 | US4086621 Cycloconverter and method for its operation |
| 04/25/1978 | US4086526 Method of and a power switching device for regulating the electrical power delivered to a consumer in an A.C. network |
| 04/11/1978 | US4084220 Power converter |
| 03/14/1978 | US4079307 Alternating current generating device |
| 02/14/1978 | US4074348 Circuit arrangement with a number of cycloconverters, particularly direct cycloconverters in y-connection |
| 02/14/1978 | US4074101 Induction heating apparatus using a pair of inversely parallel connected gate-controlled switching devices |
| 12/27/1977 | US4065711 Chopper assisted uninterruptible power supply |
| 12/13/1977 | US4063302 Protection arrangement for an inverter |
| 12/06/1977 | US4061948 Or electrically braked motors of spinning machines |
| 11/29/1977 | US4060754 Electronic motor that includes an electronic waveform synthesizer and the synthesizer per se |
| 11/01/1977 | US4056766 Commutation circuit for a cycloconverter with intermediate D.C. link |
| 10/25/1977 | US4055793 Electrical load controller |
| 10/25/1977 | US4055791 Self commutated SCR power supply |
| 10/11/1977 | US4053822 Subharmonic frequency generator |
| 10/04/1977 | US4052624 Ramp and pedestal control circuit |
| 09/27/1977 | US4051425 Ac to dc power supply circuit |
| 09/27/1977 | US4051045 Ozone generating apparatus |
| 09/20/1977 | US4050007 Control unit for thyristors of a cycloconverter |
| 09/06/1977 | US4047090 Digital controlled low frequency power amplifier |
| 09/06/1977 | US4047089 Starting circuit for inverter |
| 09/06/1977 | US4046991 Power control apparatus |
| 08/30/1977 | US4045722 Power converter system |
| 08/30/1977 | US4045711 Tuned oscillator ballast circuit |
| 08/23/1977 | US4044249 Voltage supply including bilateral attenuator |
| 08/16/1977 | US4042871 Conversion system with overcurrent protection and start-up circuitry |
| 08/16/1977 | US4042870 Transistor oscillator power converter |
| 08/16/1977 | US4041894 Electronic arrangement for generating two alternating voltages whose phases are shiftable |
| 08/09/1977 | US4041368 Three-phase, quasi-square wave VSCF induction generator system |
| 08/09/1977 | US4041267 Microwave oven power control circuit |
| 07/26/1977 | US4038593 Regulated high voltage ac power supply with regulated d.c. bias current |
| 07/26/1977 | US4038592 Voltage and frequency control circuit |
| 07/19/1977 | US4037044 Power control system for single phase induction melting or heating furnace |
| 06/21/1977 | US4031458 A.C. voltage regulator employing thyristor |
| 06/14/1977 | US4030022 Phase-controlled cycloconverters |
| 05/17/1977 | US4024457 Hard-firing zero-crossing trigger control circuit |
| 05/17/1977 | US4024410 Alternating current energy converter |
| 04/26/1977 | US4019519 Nerve stimulating device |
| 04/19/1977 | US4019116 Commutation circuit for a converter |
| 04/12/1977 | US4017785 Power source for fluorescent lamps and the like |
| 04/05/1977 | US4016390 Induction heating apparatus with protective circuit arrangement |
| 03/29/1977 | US4015193 Firing circuit |
| 03/22/1977 | US4013942 Phase shifter |
| 03/22/1977 | US4013937 Naturally commutated cycloconverter with controlled input displacement power factor |
| 03/15/1977 | US4012682 Low KVA static AC motor drive |
| 02/15/1977 | US4008428 Circuit arrangement with a number of frequency converters, particularly Y-connected direct frequency converters |
| 02/15/1977 | US4008427 Variable input power supply |
| 02/01/1977 | US4006368 A.C. voltage regulator including bilateral thyristor |
| 01/25/1977 | US4005370 Power supply means for magnetron |
| 01/25/1977 | US4005335 High frequency power source for fluorescent lamps and the like |
| 01/11/1977 | US4002958 AC output power control system |
| 01/04/1977 | US4001670 Static reactive power generating apparatus |
| 12/21/1976 | US3999112 Polyphase frequency converter |
| 12/07/1976 | US3996402 Fastening device for use with induction heater apparatus and system for holding together two nonmetal surfaces |
| 11/16/1976 | US3992657 AC feed control system |
| 11/02/1976 | US3990000 Alternating current control system |
| 11/02/1976 | US3989996 Force commutation static frequency changer apparatus using direct capacitor commutation |
| 10/26/1976 | US3988660 Circuit for rectifying a three-phase alternating signal |
| 10/19/1976 | US3987357 AC voltage regulator |
| 09/28/1976 | US3983494 Frequency insensitive sine wave-to-cosine wave converter |
| 09/21/1976 | US3982170 Variable speed, constant frequency induction generator system |
| 09/21/1976 | US3982168 Phase shifter for controlling the power components and power factor of a cycloconverter |
| 09/21/1976 | US3982167 Current control system for high frequency link cycloconverter |
| 09/07/1976 | US3979044 Carton construction |
| 08/31/1976 | US3978307 Induction heating apparatus with protective circuit arrangement |
| 08/17/1976 | US3975673 Phase shifter |
| 07/27/1976 | US3971976 Electric power supply |
| 07/20/1976 | US3970914 Circuit arrangement including a number of converters, in particular direct converters, in Y connection |
| 06/29/1976 | US3967189 Power supply for electronic circuits at high-voltage potential |
| 06/29/1976 | US3967185 Generator frequency converter |
| 05/25/1976 | US3959720 Voltage control system for high frequency link cycloconverter |
| 05/25/1976 | US3959719 Static controller for power factor correction and adaptive filtering |
| 05/25/1976 | US3959712 Phase converter |
| 05/25/1976 | US3959709 Multi-phase power supplies |
| 05/18/1976 | US3958174 Modulated induction generator |
| 05/18/1976 | US3958172 Frequency reduction and power control circuit for thyristor line controllers |
| 05/11/1976 | US3956716 Pulse width modulated signal amplifier |
| 04/27/1976 | US3953783 Low cast chopper inverter power supply and gating circuit therefor |
| 04/20/1976 | US3952241 Electronic power varying controller device |
| 04/06/1976 | US3949337 Self-induction device for generating harmonics |
| 03/30/1976 | US3947751 Electronic variac surge current limiting circuit |
| 03/16/1976 | US3944878 Variable brightness light display apparatus |
| 03/16/1976 | US3944874 Solid state multiphase high voltage generator |
| 03/02/1976 | US3942092 Cycloconverter controlled rectifier protection circuit |
| 03/02/1976 | US3942091 Method and apparatus for operating a converter fed rotating field machine |
| 03/02/1976 | US3942090 Control process for operating a parallel-resonant circuit inverter that supplies an inductive charge, as well as the parallel-resonant circuit inverter operated by this method |
| 03/02/1976 | US3942041 Thyristor control circuit |
| 02/17/1976 | US3939387 Variable frequency power converter for ac motor drive |
| 02/03/1976 | US3936721 Electrical power supplies |
| 01/27/1976 | US3935530 Compensation equipment for fluctuations in A.C. source voltage |
| 01/06/1976 | US3931563 Force commutation static frequency changer apparatus using direct current chopper technique |
| 01/06/1976 | US3931530 Apparatus for controlling the supply of power to a resistive load |