| Patents for H02M 7 - Conversion of ac power input into dc power output; Conversion of dc power input into ac power output (46,189) |
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| 08/09/1977 | US4041544 DC to AC inverter having improved switching efficiency, overload and thermal protection features |
| 08/09/1977 | US4041367 Apparatus for generating alternating currents of accurately predetermined waveform |
| 08/09/1977 | US4041366 Voltage multiplier arrangement |
| 08/09/1977 | US4041365 Circuit for detecting a malfunction in an inverter |
| 08/02/1977 | US4039928 Electrical operating circuit having semiconductor device junction temperature monitoring |
| 08/02/1977 | US4039926 Current fed inverter with commutation independent of load inductance |
| 08/02/1977 | US4039925 Phase substitution of spare converter for a failed one of parallel phase staggered converters |
| 08/02/1977 | US4039924 High voltage winding assembly with improved regulation |
| 08/02/1977 | US4039923 Method and apparatus for operating a load controlled inverter |
| 07/26/1977 | US4038593 Regulated high voltage ac power supply with regulated d.c. bias current |
| 07/19/1977 | US4037132 Image tube power supply |
| 07/19/1977 | US4036291 Cooling device for electric device |
| 07/12/1977 | US4035715 Current monitoring of a modular power controller |
| 07/12/1977 | US4035703 Current circuit arrangement for reducing the switch-on power dissipation of a power transistor |
| 06/28/1977 | US4032833 Chopper control device |
| 06/28/1977 | US4032832 Dc to ac inverter with unregulated input and regulated output |
| 06/28/1977 | US4032831 Inverter apparatus |
| 06/28/1977 | US4032740 Two-level temperature control for induction heating |
| 06/21/1977 | US4031454 Transistor inverter |
| 06/14/1977 | US4030021 Inverter |
| 06/14/1977 | US4030019 Static inverter control circuit |
| 06/14/1977 | US4030018 Power converter system |
| 06/14/1977 | US4030017 Controlled reactance regulator circuit |
| 06/14/1977 | US4030016 Precision active rectifier circuit |
| 06/14/1977 | US4030013 Emergency lighting system AC line voltage sensing |
| 06/14/1977 | US4029993 Two level inverter circuit |
| 06/07/1977 | US4028610 Inverters supplying a high frequency alternating current |
| 06/07/1977 | US4028609 Digital firing pulse generator with pulse suppression |
| 06/07/1977 | US4028608 Bridge circuit arrangement on electrical frequency converters which can be fed with a D.C. current |
| 06/07/1977 | US4028607 Inverter control system |
| 05/31/1977 | US4027228 Photocoupled isolated switching amplifier circuit |
| 05/31/1977 | US4027226 Bipolar inverter with induction generator |
| 05/31/1977 | US4027169 High frequency power supply |
| 05/24/1977 | US4025863 Regulating electric power circuit arrangement |
| 05/17/1977 | US4024454 Holding circuit for static convertor valves |
| 05/17/1977 | US4024453 Inverter for supplying a regulated voltage |
| 05/17/1977 | US4024449 Intrinsically safe power source with plural conversions |
| 05/10/1977 | US4023087 Overvoltage protection for a direct current transmission |
| 05/10/1977 | US4023086 Control system for rectifier equipment |
| 05/10/1977 | US4023051 Rectifier switch with series-connected thyristors |
| 05/03/1977 | US4021797 Audio frequency power line control system |
| 05/03/1977 | US4021721 AC-to-DC converter |
| 05/03/1977 | US4021719 Protective circuit for static inverter |
| 04/26/1977 | US4020411 Static power converter controlling apparatus for reducing noise generated by phase shift control |
| 04/26/1977 | US4020410 Rectifier-inverter system of converter substation |
| 04/26/1977 | US4020399 Vapor cooling device for dissipating heat of semiconductor elements |
| 04/26/1977 | US4020361 Switching mode power controller of large dynamic range |
| 04/26/1977 | US4020360 Inverter control system |
| 04/19/1977 | US4019117 Circuit arrangement for an inverter |
| 04/19/1977 | US4019116 Commutation circuit for a converter |
| 04/12/1977 | US4017780 Dynamic temperature compensating circuit for power transistor converters |
| 04/05/1977 | US4016479 High frequency power converter drive circuit |
| 04/05/1977 | US4016478 High-voltage transformer |
| 04/05/1977 | US4016477 Novel multi-path leakage transformer and inverter ballast |
| 04/05/1977 | US4016468 Controlled rectifier motor drive system including d.c. fault detection and commutation means |
| 04/05/1977 | US4016392 Pan detector for induction heating apparatus |
| 04/05/1977 | US4016391 Induction heating apparatus with means for improving the dv/dt capability of a silicon-controlled rectifier used therein |
| 04/05/1977 | US4016390 Induction heating apparatus with protective circuit arrangement |
| 03/29/1977 | US4015184 Silicon junction diode rectifier power pack |
| 03/29/1977 | US4015173 Support for mounting the electronic components of a single phase unit for an inverter |
| 03/22/1977 | US4013940 Semiconductor circuit device |
| 03/22/1977 | US4013935 Circuit arrangement for a dc to dc converter |
| 03/22/1977 | US4013900 Cross inhibit circuit to prevent misfires of alternately triggered switching devices |
| 03/15/1977 | US4012683 Method and apparatus for reducing inverter no-load losses |
| 03/15/1977 | US4012682 Low KVA static AC motor drive |
| 03/15/1977 | US4012646 Powering scheme for josephson logic circuits which eliminates disturb signals |
| 03/15/1977 | US4012641 Portable pulsed signal generator |
| 03/08/1977 | US4011495 High voltage generator arrangement |
| 03/08/1977 | US4010535 Method of fabricating a voltage multiplier circuit assembly |
| 03/01/1977 | US4010401 Constant-voltage converter having beam current detector |
| 03/01/1977 | US4010342 Induction cooking appliance having improved protection circuits |
| 02/22/1977 | US4009452 Submersible power package |
| 02/22/1977 | US4009430 Antiparallel commutated inverter |
| 02/15/1977 | US4008427 Variable input power supply |
| 01/25/1977 | US4005370 Power supply means for magnetron |
| 01/25/1977 | US4005350 Arrangement for protection of self-controlled inverter fed from an intermediate d.c. voltage link |
| 01/25/1977 | US4005335 High frequency power source for fluorescent lamps and the like |
| 01/18/1977 | US4004251 Inverter transformer |
| 01/11/1977 | US4002999 Static inverter with controlled core saturation |
| 01/11/1977 | US4002958 AC output power control system |
| 01/11/1977 | US4002921 High frequency power supply |
| 01/11/1977 | US4002875 High frequency heating apparatus |
| 01/04/1977 | US4001668 Electric shaver operable from a wide range of supply voltages |
| 01/04/1977 | US4001665 High efficiency power supply having a reactive buck automatic d.c. voltage regulator |
| 12/21/1976 | US3999111 Gating signal control for a phase-controlled rectifier circuit |
| 12/07/1976 | US3996604 Vapor cooled semiconductor device having an improved structure and mounting assembly |
| 12/07/1976 | US3996506 Inrush current limiter |
| 12/07/1976 | US3996444 Apparatus for welding rolled seams |
| 12/07/1976 | US3996402 Fastening device for use with induction heater apparatus and system for holding together two nonmetal surfaces |
| 11/23/1976 | US3993943 Three phase power circuit |
| 11/16/1976 | US3992659 High voltage direct current transmission |
| 11/16/1976 | US3992657 AC feed control system |
| 11/09/1976 | US3991343 Control circuit for progressively varying illumination intensity of lamps |
| 11/02/1976 | US3989997 Absolute-value circuit |
| 11/02/1976 | US3989916 Induction heating appliance for a cooking utensil |
| 11/02/1976 | US3989099 Vapor cooling device for semiconductor device |
| 10/26/1976 | US3988660 Circuit for rectifying a three-phase alternating signal |
| 10/19/1976 | US3987356 Controlled capacitive filter for active loads |
| 10/12/1976 | US3986100 DC-voltage supply means for an inverter |
| 10/12/1976 | US3986099 Multi-purpose thyristor commutation circuit |