| 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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| 02/08/1983 | CA1140992A1 Control for var generator with deadband |
| 02/08/1983 | CA1140991A1 High-power ac voltage stabilizer |
| 02/08/1983 | CA1140990A1 Low loss stabilizer |
| 02/03/1983 | WO1983000397A1 A current source circuit |
| 02/01/1983 | US4371830 High voltage charge-regulating power supply for a pulsed load |
| 01/26/1983 | EP0070664A1 Phase controlled regulated power supply circuit |
| 01/26/1983 | EP0070633A2 Electrical switching circuit for a multi-phase load |
| 01/25/1983 | CA1140223A1 Voltage-to-current converter |
| 01/18/1983 | CA1139870A1 Dynamically checked safety laod switching circuit |
| 01/18/1983 | CA1139839A1 Simple method of switching an ac line |
| 01/12/1983 | EP0069538A1 Power supply circuit |
| 01/11/1983 | US4368420 Supply voltage sense amplifier |
| 01/11/1983 | US4368419 Power supply and method utilizing applied current for increased hysteresis swing in transformer core |
| 01/11/1983 | US4367936 Switching control system |
| 01/06/1983 | WO1983000071A1 Static reactive compensator |
| 01/05/1983 | EP0068463A2 A high frequency switching circuit |
| 01/05/1983 | EP0068180A1 Direct current arc furnace control system |
| 01/04/1983 | US4367437 Reference voltage generator |
| 12/29/1982 | EP0067978A2 Method and device for regulating the network reactive power in a high voltage direct current power transmission |
| 12/29/1982 | EP0067937A2 Multi-chopping drive circuit for an electromagnetic print hammer or the like |
| 12/29/1982 | EP0067936A2 Chopping drive circuit for an electromagnetic print hammer or the like |
| 12/28/1982 | US4366433 Output voltage-drop detecting apparatus technical field |
| 12/28/1982 | US4366432 Highly stable constant-voltage power source device |
| 12/23/1982 | WO1982004487A1 Power source for automotive electronic equipment |
| 12/22/1982 | EP0067686A2 Power supply device for atomizer used in atomic absorptiometer |
| 11/30/1982 | US4361866 Power converter apparatus |
| 11/23/1982 | US4360783 Lamp power regulator |
| 11/23/1982 | US4360763 Method and device for control of great currents particularly of the pulse type |
| 11/17/1982 | EP0064642A2 Electric safety device for the control of a printing machine |
| 11/16/1982 | US4359681 Alternating current power controller with DC transistor switching and an internal DC power supply |
| 11/10/1982 | EP0064333A1 Circuitry including charge storage means for boosting a limited current supplied to a load |
| 11/09/1982 | US4358818 Thyristor-controlled AC/DC converter system |
| 11/09/1982 | US4358730 AC Power control circuit |
| 11/09/1982 | US4358728 Voltage control circuit responsive to FET propagation time |
| 11/09/1982 | CA1135349A1 Current sources |
| 11/03/1982 | EP0063611A1 Electric power source for a control unit |
| 11/02/1982 | US4357570 Voltage compensation for an A-C network supplying a rapidly-changing load |
| 11/02/1982 | CA1134909A1 Load-responsive treater controller |
| 11/02/1982 | CA1134908A1 Apparatus for controlling electrical power consumption |
| 10/27/1982 | EP0063483A2 Semiconductor integrated circuit |
| 10/27/1982 | EP0063356A1 Time switch arrangement |
| 10/26/1982 | US4356542 Digital controller |
| 10/26/1982 | US4356525 Method and circuit for controlling a hybrid contactor |
| 10/26/1982 | US4356403 Masterless power supply arrangement |
| 10/26/1982 | CA1134436A1 Closed loop potential regulated power supply circuit arrangements |
| 10/19/1982 | US4355277 Dual mode DC/DC converter |
| 10/19/1982 | CA1133988A1 Apparatus for controlling the power supplied to a load |
| 10/12/1982 | US4354224 Manipulation-variable separated type system control method and apparatus |
| 10/12/1982 | US4354122 Voltage to current converter |
| 10/12/1982 | CA1133585A1 Method for controlling power flow between an electrochemical cell and a power grid |
| 10/12/1982 | CA1133584A1 Static var generator compensating control circuit and method for using same |
| 10/05/1982 | US4353024 Control for VAR generator with deadband |
| 10/05/1982 | CA1133055A1 Frequency sensitive switching circuit |
| 10/05/1982 | CA1133054A1 Method and apparatus for controlling electric valve in ac power supply |
| 10/05/1982 | CA1133053A1 Constant current circuit |
| 10/05/1982 | CA1133051A1 Process and apparatus for charging a capacitor and application of the process |
| 09/28/1982 | US4352153 Regulated converter with volt-balancing control circuit |
| 09/28/1982 | US4352055 AC Variable voltage source utilizing pulse width modulation |
| 09/28/1982 | US4352053 Temperature compensating voltage generator circuit |
| 09/28/1982 | CA1132657A1 Method and system of controlling effective value of alternating current |
| 09/21/1982 | US4350949 Bidirectional switching circuit with control terminal |
| 09/16/1982 | WO1982003142A1 Regulated converter with volt-balancing control circuit |
| 09/16/1982 | WO1982003141A1 Regulated power supply |
| 09/16/1982 | WO1982003033A1 Microprocessor control of welding apparatus |
| 09/14/1982 | US4349879 Apparatus for controlling electrical power consumption |
| 09/14/1982 | US4349777 Variable current source |
| 09/14/1982 | US4349775 Temperature compensated voltage regulator for photovoltaic charging systems |
| 09/14/1982 | CA1131700A1 Power supply providing constant power output |
| 09/10/1982 | EP0037818A4 Current source having saturation protection. |
| 09/07/1982 | US4348632 Servosystem operating about noise component error signal |
| 09/07/1982 | US4348631 Static VAR generator |
| 09/07/1982 | US4348590 X-ray tube anode voltage compensator |
| 09/01/1982 | EP0059089A1 Power supply apparatus |
| 08/31/1982 | US4347474 Solid state regulated power transformer with waveform conditioning capability |
| 08/31/1982 | CA1130861A1 Stepping ac line voltage regulator |
| 08/24/1982 | US4346343 Power control means for eliminating circuit to circuit delay differences and providing a desired circuit delay |
| 08/24/1982 | US4346342 Current limiting voltage regulator |
| 08/24/1982 | US4346341 Method and apparatus for automatic voltage reduction control |
| 08/19/1982 | WO1982002806A1 Switched capacitor bandgap reference |
| 08/17/1982 | US4345189 Motor rotation speed control circuit |
| 08/17/1982 | US4345188 Television receiver high frequency regulated power supply including a low voltage ferroresonant transformer coupled to a step-up high voltage transformer |
| 08/17/1982 | US4345166 Current source having saturation protection |
| 08/17/1982 | CA1129955A1 Reference voltage arrangement |
| 08/11/1982 | EP0057563A2 Semiconductor integrated circuit |
| 08/11/1982 | EP0057351A2 Circuit for delay normalisation of interconnected semiconductor circuits |
| 08/10/1982 | CA1129526A1 Programmable energy load controller system and methods |
| 08/10/1982 | CA1129497A1 Three phase power control unit |
| 08/10/1982 | CA1129485A1 Variable intensity control apparatus for operating a gas discharge lamp |
| 08/03/1982 | US4343034 Magnetic amplifier preregulator for linear power supplies |
| 08/03/1982 | US4342926 Bias current reference circuit |
| 08/03/1982 | CA1129003A1 Compensation of sensor voltage for reference potential variation |
| 08/03/1982 | CA1128994A1 Series pass voltage regulator with overcurrent protection |
| 07/28/1982 | EP0056710A2 Recovery of energy from waste gas streams |
| 07/27/1982 | US4342006 Amplifier circuit for supplying load with output signal current proportional to input signal voltage |
| 07/27/1982 | US4341990 High frequency line ripple cancellation circuit |
| 07/27/1982 | US4341607 Solar power system requiring no active control device |
| 07/14/1982 | EP0055937A2 A temperature compensated voltage regulator for photovoltaic charging systems |
| 07/13/1982 | US4339792 Voltage regulator using saturable transformer |
| 07/13/1982 | US4339705 Thyristor switched inductor circuit for regulating voltage |
| 07/13/1982 | US4339697 Propulsion motor control apparatus and method |