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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05/29/1979 | US4156899 Current source inverter |
05/29/1979 | US4156897 Apparatus for supplying direct current from a three-phase alternating-current source |
05/29/1979 | US4156896 Method of controlling a power conversion system |
05/29/1979 | US4156888 Flyback transformer |
05/22/1979 | US4156275 Power conversion unit |
05/22/1979 | US4156274 Inverter circuit |
05/22/1979 | US4156210 Resonant transformer push-pull transistor oscillator |
05/22/1979 | CA1055112A1 Complementary commutation circuit for bipolar inverter |
05/15/1979 | US4155113 Protective circuit for transistorized inverter-rectifier apparatus |
05/08/1979 | US4153930 Balanced control waveform for reducing inverter harmonics |
05/01/1979 | US4152759 Frequency converter |
05/01/1979 | US4152656 Apparatus for monitoring an AC variable |
05/01/1979 | CA1053752A1 Apparatus for controlling controlled systems with dead time |
05/01/1979 | CA1053749A1 Converter valve |
04/24/1979 | US4151586 Method and apparatus for shutting down an inverter |
04/24/1979 | US4151387 Metal base cookware induction heating apparatus having improved power control circuit for insuring safe operation |
04/24/1979 | CA1053338A1 Two-level temperature control for induction heating apparatus |
04/24/1979 | CA1053327A1 Holding circuit for static converter valves |
04/17/1979 | US4150426 Transistorized power supply drive circuit arrangement |
04/17/1979 | US4150425 Module failure isolation circuit for paralleled inverters |
04/17/1979 | US4150325 Power conversion system having inversion fault detection and correction circuit |
04/17/1979 | US4150323 Intensity control of fluorescent lamps |
04/10/1979 | US4149234 Inverter arrangements |
04/10/1979 | US4149233 Circuit for automatic load sharing in parallel converter modules |
04/10/1979 | US4149232 Voltage boosting circuits |
04/10/1979 | CA1052279A1 Switching circuit utilizing the base storage characteristic of a transistor for use in a facsimile transceiver and the like |
04/03/1979 | CA1051977A1 Modulated induction generator |
04/03/1979 | CA1051976A1 Peak load levelling system |
03/27/1979 | US4146921 Power control or conversion apparatus |
03/27/1979 | US4146920 Pre-charge circuit for aux-comm inverter |
03/27/1979 | CA1051516A1 Spatial arrangement of the valves of a twelve pulse converter system |
03/20/1979 | CA1051089A1 Inverter control circuit |
03/13/1979 | US4144559 Power converter control system |
03/13/1979 | US4144462 Emergency lighting fluorescent pack |
03/06/1979 | US4143414 Three phase ac to dc voltage converter with power line harmonic current reduction |
03/06/1979 | CA1050099A1 High frequency power supply for corona generator |
02/27/1979 | CA1049611A1 Dc to ac inverter having improved switching efficiency, overload and thermal protection features |
02/20/1979 | US4141064 Booster circuit |
02/13/1979 | US4139880 CMOS polarity reversal circuit |
02/13/1979 | CA1048666A1 High voltage generator arrangement |
02/13/1979 | CA1048612A1 Regulated power supply means for magnetron |
01/30/1979 | US4137570 Waveform synthesizer |
01/30/1979 | US4137560 Multiphase full-wave rectifier assembly |
01/23/1979 | US4136382 Converter system |
01/23/1979 | US4136305 Power converter control apparatus |
01/23/1979 | CA1047120A1 Controlled h.f. induction heating apparatus |
01/23/1979 | CA1047108A1 Synchronized push-pull inverter |
01/16/1979 | US4135237 Inverter |
01/16/1979 | US4135235 Synthesizer circuit for generating three-tier waveforms |
01/16/1979 | CA1046579A1 Controlled reactance regulator circuit |
01/02/1979 | US4133025 Pulse width modulator symmetry correction circuit and method thereof |
01/02/1979 | US4133018 Thyristor fault-detecting apparatus |
12/26/1978 | US4131939 Constant current power supply |
12/26/1978 | US4131937 Naturally commutated voltage-fed converter for linking a DC source to an AC system |
12/26/1978 | US4131936 Symmetrical phase shifting apparatus, digital delaying device used therein and harmonic neutralized inverter system using the apparatus |
12/12/1978 | US4129809 Power factor corrected dual converter motor drive |
12/12/1978 | US4129808 Electronic control arrangement which can be used in particular for driving a brushless and slip-ringless motor and an installation incorporating such an arrangement |
12/12/1978 | US4129805 Impulse generator for use with phosphor energizable lamps |
12/12/1978 | CA1044332A1 Microwave and induction heating oven |
12/05/1978 | US4128871 High voltage DC power supply |
12/05/1978 | US4128870 High current-rectifier arrangement |
12/05/1978 | US4128869 Phase control arrangement of valve converter |
11/28/1978 | US4127893 Tuned oscillator ballast circuit with transient compensating means |
11/28/1978 | US4127798 Lamp circuit |
11/28/1978 | CA1043430A1 Multi-purpose thyristor commutation circuit |
11/14/1978 | US4125800 Power controller with a modular power output |
11/07/1978 | US4124886 Generation of low frequency, high voltages |
11/07/1978 | US4124885 Offset compensation for harmonic neutralized static AC generator |
11/07/1978 | US4124811 Circuit for bi-directionally powering a motor |
11/07/1978 | CA1042076A1 Radio frequency transmitters |
10/31/1978 | US4123670 Transistor switching circuit |
10/31/1978 | CA1041602A1 Starting circuit for inverter |
10/31/1978 | CA1041601A1 Inverter |
10/24/1978 | US4122517 Thyristor control method for thyristor AC-DC converter |
10/24/1978 | US4122516 Inverter control apparatus |
10/24/1978 | US4122515 High harmonic current reducing apparatus in power converter |
10/24/1978 | US4122512 Superconductive energy storage for power systems |
10/24/1978 | CA1041180A1 Thyristor gate control for induction heating appliance |
10/24/1978 | CA1041169A1 Paralleling of inverters for low harmonics |
10/17/1978 | CA1040706A1 Momentary power supply shutdown system |
10/10/1978 | US4119897 Static convertor |
10/03/1978 | US4118770 Inverter apparatus commutated by an auxiliary source |
10/03/1978 | US4118769 Full wave demand controlled preregulating supply |
10/03/1978 | US4118768 Demand controlled preregulating rectifier circuit for power supplies |
10/03/1978 | US4118641 Chopper including transistor switches |
09/26/1978 | USRE29788 Inverter having forced turn-off |
09/26/1978 | US4117389 Low frequency high output alternating current generating device |
09/26/1978 | US4117373 Emergency/normal lighting circuit for a gaseous discharge lamp |
09/26/1978 | US4117364 Voltage waveform synthesizer and a system that includes the same |
09/26/1978 | CA1039355A1 Control system for phase displacement regulator circuits |
09/12/1978 | US4114048 Load balancing system for ups rectifiers |
09/05/1978 | US4112287 Central oscillator for induction range using triac burner controls |
09/05/1978 | US4112286 Power circuit for induction heating |
08/29/1978 | US4110821 Semiconductor device having a semiconductor accommodated in a sealed vessel |
08/22/1978 | US4109308 Circuit for converting a.c. voltage into a d.c. voltage |
08/22/1978 | US4109307 High power factor conversion circuitry |
08/22/1978 | US4109306 Power supply |
08/22/1978 | US4109167 Transistor amplifier applying large output currents to a load |
08/15/1978 | US4107771 Circuit for shutting down an inverter |
08/15/1978 | CA1036668A1 Overvoltage protection for a direct current transmission |