| Patents for G05F 1 - Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems (37,749) |
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| 02/19/1980 | US4189664 Power control unit for automatic control of power consumption in a lighting load |
| 02/19/1980 | CA1072182A1 Low dissipation voltage regulator |
| 02/12/1980 | US4188573 Static VAR generator with time-related-error minimizer |
| 02/06/1980 | EP0007804A1 A stabilising bias circuit having a desired temperature dependence |
| 02/06/1980 | EP0007781A1 Method and apparatus for controlling the current supplied to a load |
| 01/29/1980 | US4186336 Limit cycling regulator apparatus for plural parallel power sources |
| 01/29/1980 | US4186329 Electrical power supplies |
| 01/29/1980 | CA1070763A1 Ac inverter with constant power output |
| 01/22/1980 | US4185177 Latch operated tap changing switch for transformer regulating system |
| 01/15/1980 | CA1069975A1 Semiconductor switch |
| 01/09/1980 | EP0006785A1 Cathode heating device for electron power tube and emitter including such a device |
| 01/08/1980 | US4183082 Regulated power supply |
| 01/01/1980 | US4181932 Power converter |
| 12/25/1979 | US4180768 Energy limiting foldback circuit for power supply |
| 12/25/1979 | US4180761 Control device, particularly for controlling the emission current of an X-ray tube |
| 12/18/1979 | US4179649 Voltage supply apparatus powered from a vehicular electrical system |
| 12/11/1979 | US4178539 Stepping AC line voltage regulator |
| 12/11/1979 | US4177770 Compensation of sensor voltage for reference potential variation |
| 11/27/1979 | US4176309 Stabilized voltage regulator circuit, particularly for use with a serially connected PNP transistor |
| 11/27/1979 | US4176308 Voltage regulator and current regulator |
| 11/27/1979 | CA1067149A1 Three-phase quasi-square wave vscf induction generator system |
| 11/27/1979 | CA1067125A1 Power control system for single phase induction melting or heating furnace |
| 11/20/1979 | US4175250 Transistor bias circuit |
| 11/20/1979 | US4175249 Self-reconfiguring solar cell system |
| 11/14/1979 | EP0005311A1 Method and apparatus for regulating the power supplied to an electrical load |
| 11/13/1979 | US4174497 Circuit and method for controlling reactive load currents of a three-phase system |
| 11/13/1979 | US4174496 Monolithic solid state power controller |
| 11/06/1979 | CA1065966A1 Temperature dependent voltage reference circuit |
| 11/06/1979 | CA1065959A1 Ground wire fed incandescent buoys |
| 10/31/1979 | EP0005109A2 Installation and power supply for beacon flash lamps |
| 10/31/1979 | EP0005108A2 Installation and power supply for beacon incandescent lamps |
| 10/31/1979 | EP0005107A1 Device and method for diverting energy from a capacitive source with shunt switching regulation |
| 10/30/1979 | US4172991 AC current control system for AC power supply |
| 10/23/1979 | US4172279 Integrated current supply circuits |
| 10/23/1979 | US4172234 Static VAR generator compensating control circuit and method for using same |
| 10/16/1979 | CA1064576A1 High efficiency switching drive for a resonate power transformer |
| 10/04/1979 | WO1979000714A1 Motor speed controlling circuit |
| 10/03/1979 | EP0004462A1 AC control apparatus |
| 10/02/1979 | CA1063683A1 Bidirectional thyristor switch circuit |
| 09/25/1979 | US4169259 Frequency sensitive switching circuit |
| 09/25/1979 | US4169241 Overvoltage protected de-boost regulator |
| 09/18/1979 | US4168477 Electric regulators |
| 09/18/1979 | US4168461 Voltage regulator providing wide range of voltage regulation |
| 09/18/1979 | US4168459 Non-interruptible power supply systems |
| 09/11/1979 | US4167777 Switching-mode regulator |
| 09/11/1979 | US4167696 Zero phase switching for multi-phase systems |
| 09/11/1979 | CA1062332A1 Control circuit for a power switching element |
| 09/06/1979 | WO1979000615A1 Electronic arrangement for adjusting the light intensity of an electrical discharge lamp without incandescent cathode |
| 09/05/1979 | EP0003841A1 Power control circuit |
| 09/04/1979 | US4167037 Apparatus for DC/AC power conversion by electromagnetic induction |
| 09/04/1979 | US4166982 Logical circuit reference electric level generating circuitry |
| 09/04/1979 | US4166962 Current mode D/A converter |
| 08/22/1979 | EP0003528A1 Electronic device for controlling the light intensity of a gaseous discharge lamp without a heated cathode |
| 08/21/1979 | US4165477 Instrument intended to be carried at the wrist |
| 08/21/1979 | CA1060946A1 Stroboscopie beacons fed by a capacitive source___ |
| 08/07/1979 | US4164018 Method and apparatus for steering a spacecraft and regulating its onboard supply voltage |
| 08/07/1979 | CA1060096A1 High tension dc source |
| 07/31/1979 | US4163190 Apparatus for control of electrical current by electromagnetic induction |
| 07/31/1979 | US4163188 System for establishing and steering a precise current |
| 07/31/1979 | US4163161 MOSFET circuitry with automatic voltage control |
| 07/26/1979 | WO1979000449A1 Variable intensity control apparatus for operating a gas discharge lamp |
| 07/24/1979 | US4162526 Failsafe primary power control apparatus for systems using computer controlled power sequencing |
| 07/24/1979 | US4162522 Apparatus for frequency conversion by electromagnetic induction |
| 07/24/1979 | US4162441 Apparatus for control of DC power by electromagnetic induction |
| 07/17/1979 | US4161772 Conversion and control of electrical energy by electromagnetic induction |
| 07/17/1979 | US4161771 Inverter ripple regulator |
| 07/17/1979 | US4161760 Short circuit protection of regulated power supplies |
| 07/17/1979 | US4161759 Protection circuit for a voltage regulator |
| 07/11/1979 | EP0002975A1 DC-voltage regulating device |
| 07/10/1979 | US4160934 Current control circuit for light emitting diode |
| 07/10/1979 | CA1058278A1 Solid-state dimmer for dual high pressure disclosure lamps |
| 07/03/1979 | US4160201 Voltage regulators |
| 06/26/1979 | US4159428 Method of dividing direct current among parallel circuits and device for effecting same |
| 06/19/1979 | US4158804 MOSFET Reference voltage circuit |
| 06/19/1979 | CA1056887A1 Power control system for independent generators |
| 05/31/1979 | WO1979000295A1 Current sources |
| 05/29/1979 | US4156837 DC static switch circuit with power saving feature |
| 05/29/1979 | CA1055569A1 Cycloconverter for compensating reactive power in a three-phase network |
| 05/22/1979 | US4156175 Voltage regulation apparatus using simulated ferroresonance |
| 05/22/1979 | US4156150 Circuit for regulating a DC voltage on which a large AC voltage is superimposed |
| 05/22/1979 | US4155829 Apparatus for regulating anode-cathode spacing in an electrolytic cell |
| 05/22/1979 | CA1157516A Capacitive energy source extraction system with shunt switching control |
| 05/22/1979 | CA1055115A1 Alternating current control circuits |
| 05/22/1979 | CA1055111A1 System for extracting energy from a capacitive source, with shunt switched regulation |
| 05/16/1979 | EP0001806A2 Electromedical excitation apparatus |
| 05/15/1979 | CA1054677A1 Low cost voltage regulating relay |
| 05/08/1979 | US4153872 Crest firing means |
| 05/08/1979 | US4153871 Implicit pulse-to-pulse high voltage detection and controller |
| 05/08/1979 | US4153835 Temperature compensation circuit |
| 05/08/1979 | CA1054221A1 Current regulation system for three-phase load |
| 05/08/1979 | CA1054220A2 Control system for phase displacement regulator circuits |
| 05/08/1979 | CA1054219A2 Control system for phase displacement regulator circuits |
| 05/02/1979 | EP0001722A2 Fast high voltage on-off switch with possibility of voltage regulation, load- and self- protection |
| 05/01/1979 | CA1053754A1 Voltage and frequency control circuit |
| 04/24/1979 | US4151456 Voltage regulator for battery power source |
| 04/24/1979 | US4151425 Voltage sequencing circuit for sequencing voltages to an electrical device |
| 04/24/1979 | US4151387 Metal base cookware induction heating apparatus having improved power control circuit for insuring safe operation |
| 04/24/1979 | CA1053331A1 Control system for controlling the operation of a three-phase load |
| 04/10/1979 | US4149236 Process for control or regulation of analog electrical machines |
| 04/03/1979 | US4147972 Control circuit for an a-c control element |