| 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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| 02/09/1988 | US4724375 Selectable direct current power supply |
| 02/09/1988 | US4724374 Solid state current limited power controller for DC circuits |
| 02/09/1988 | US4724335 Relay authorizing or interrupting the flow of a current in a load circuit and application of this relay to a load circuit in which flows a random direction current or an alternating current |
| 02/04/1988 | DE3626088A1 Controlling system |
| 02/03/1988 | CN87206181U Consecutive adjustable dc regulated power supply |
| 02/03/1988 | CN87101348A A simplified high-efficient d c voltage stabilized power unit |
| 02/02/1988 | US4723191 Electronic voltage regulator for use in vehicles with protection against transient overvoltages |
| 02/02/1988 | US4723108 Reference circuit |
| 02/02/1988 | US4723068 Electric power control device in an automatic temperature adjusting apparatus |
| 01/28/1988 | WO1988000770A1 Final stage of a bridge circuit |
| 01/27/1988 | EP0254073A2 Harmonic suppressing device |
| 01/26/1988 | US4722024 Device for detecting excess-current in a direct-current generator with controlled rectifier |
| 01/20/1988 | CN87201126U Industance adjusting ac voltage stabilizing device |
| 01/19/1988 | US4720758 Load dependent current limiter for the power supply of a multi-module electronic system |
| 01/19/1988 | US4720623 Power control device for a resistance heater in an oven |
| 01/13/1988 | EP0252638A1 Drive circuit |
| 01/13/1988 | EP0252095A1 D.c. motor control system. |
| 01/13/1988 | CN87200698U Energy saving and life prolonging lamp controller |
| 01/12/1988 | US4719405 High voltage current regulator |
| 01/12/1988 | US4719404 Switched resistor regulator with linear dissipative regulator |
| 01/12/1988 | US4719364 Multiple time delay power controller apparatus |
| 01/07/1988 | EP0251403A1 Transistor arrangement |
| 01/07/1988 | EP0250932A1 Power supply system |
| 01/07/1988 | EP0250483A1 Power controller |
| 01/05/1988 | US4717998 Static device for control of energy-exchange between electrical generating and/or receiving systems |
| 01/05/1988 | US4717869 Controlled current source apparatus for signals of either polarity |
| 01/05/1988 | US4717868 Uniform intensity led driver circuit |
| 01/05/1988 | US4717833 Single wire current share paralleling of power supplies |
| 01/05/1988 | CA1231130A1 Fuel cell/battery hybrid system |
| 12/29/1987 | US4716372 Circuit arrangement for monitoring the current supply of an electric consumer |
| 12/29/1987 | US4716359 Output stage control circuit |
| 12/29/1987 | US4716358 Constant current circuits |
| 12/29/1987 | US4716357 AC voltage regulator with split primary switching |
| 12/29/1987 | US4716307 Regulated power supply for semiconductor chips with compensation for changes in electrical characteristics or chips and in external power supply |
| 12/29/1987 | US4716301 Digital light control |
| 12/29/1987 | CA1230920A1 Operating coil control system |
| 12/26/1987 | CN87203063U Ac voltage regulated power supply |
| 12/23/1987 | EP0250086A2 Electrical circuit utilizing a concentric collector PNP transistor |
| 12/23/1987 | CN86200791U Bidirectional dc voltage-stabilizing power supply with symmetrical circuit |
| 12/22/1987 | US4714870 Arrangement for controlling an A.C. voltage |
| 12/22/1987 | CA1230643A1 Reactive-power compensator for compensating a reactive-current component in an alternating-voltage system |
| 12/17/1987 | WO1987007781A1 Method and apparatus for improving electrochemical processes |
| 12/16/1987 | EP0249083A2 Current supply device |
| 12/15/1987 | US4713619 Electronic device for feeding ion pump |
| 12/15/1987 | CA1230389A1 Integrated circuit having a variably boosted node |
| 12/09/1987 | EP0248550A1 Voltage control system |
| 12/09/1987 | EP0248381A1 Power voltage regulator circuit |
| 12/09/1987 | CN86207823U Power-saving ac voltage stabilizer |
| 12/09/1987 | CN86205937U Simple electronic voltage regulator |
| 12/08/1987 | US4712171 Electrical power source |
| 12/08/1987 | CA1230166A1 Constant potential/constant current automatic control system for air-carbon arc metal removal systems |
| 12/05/1987 | CN86202407U New ac voltage stabilizer |
| 12/02/1987 | EP0247382A2 Load control circuit |
| 12/01/1987 | US4710849 High voltage control |
| 12/01/1987 | US4710698 Phase-controlled automatic switching circuit |
| 12/01/1987 | US4710696 Control device for controllable electric valve |
| 11/24/1987 | US4709165 Voltage supply level detecting circuit |
| 11/24/1987 | CA1229659A1 Protective circuit for thyristor switches used in static var generators |
| 11/24/1987 | CA1229658A1 Dimmer circuit with soft start |
| 11/19/1987 | WO1987007050A1 Device for filtering and transient stabilization of the network voltage |
| 11/17/1987 | US4707838 Current supply for radiation sources of frequency-proportional optical sensors |
| 11/17/1987 | US4707142 Master clock system for a parallel variable speed constant frequency power system |
| 11/17/1987 | CA1229380A1 Residual charge controller for switched capacitor installation |
| 11/17/1987 | CA1229379A1 Method of operating parallel-connected semiconductor switch elements |
| 11/11/1987 | EP0115897B1 Current source arrangement |
| 11/11/1987 | CN85205689U Ac voltage regulator with automatic modulation |
| 11/10/1987 | US4706011 High voltage pulse detector with controllable current consumption |
| 11/10/1987 | US4706010 Linear solar array voltage control system |
| 11/10/1987 | CA1229132A1 Power control system |
| 11/04/1987 | EP0244268A2 Power control device for temperature control |
| 11/04/1987 | CN87204981U Automatic ac voltage regulator |
| 11/04/1987 | CN87200740U 晶体管交流调压器 AC voltage regulator transistors |
| 11/03/1987 | US4704652 Hybrid electrical power controller |
| 11/03/1987 | US4704572 Series voltage regulator with limited current consumption at low input voltages |
| 10/27/1987 | US4703410 Power failure indicator |
| 10/27/1987 | US4703193 Apparatus for controlling the parallel operation of an A-C output converter for a commercial power source including a circuit for simulating output current for test purposes |
| 10/27/1987 | US4703178 Noise erasing apparatus for stimulable phosphor sheet |
| 10/22/1987 | WO1987006375A1 Power regulator for a contactless credit card system |
| 10/21/1987 | EP0241692A2 Device to avoid undesirable degradation during the zero-load operation of solar modules made in particular of amorphous silicon solar cells |
| 10/21/1987 | EP0241534A1 Switching control apparatus for vending machine alternating current device switching |
| 10/21/1987 | CN87200101U Three-phase ferromagnetic saturation voltage stabilizer with double iron core |
| 10/21/1987 | CN87100634A Voltage adaptive power circuit |
| 10/14/1987 | EP0240618A2 Power buffer circuit |
| 10/14/1987 | EP0240617A1 Power failure indicator |
| 10/14/1987 | CN87204008U Ac voltage-regulating type regulated power supply for single phase and 3-phase electric network |
| 10/13/1987 | US4700283 Control system for an electric locomotive having AC to DC converters |
| 10/13/1987 | US4700125 Power supply switching circuit |
| 10/13/1987 | US4700124 Current and frequency controlled voltage regulator |
| 10/13/1987 | CA1228118A1 Soft-starting phase-control circuit for low voltage load |
| 10/08/1987 | WO1987006033A1 Power controller circuit with automatic correction for phase lag between voltage and current |
| 10/07/1987 | EP0240402A1 Method and device for sending an electrical current to a circuit with the aid of a transistor |
| 10/07/1987 | EP0239989A1 Power source voltage regulator device incorporated in LSI circuit |
| 10/07/1987 | EP0239863A1 Circuit for the protection of a load against overvoltages |
| 10/07/1987 | EP0239671A1 Power controller circuit with automatic correction for phase lag between voltage and current |
| 10/06/1987 | US4698582 Power driver having short circuit protection |
| 10/06/1987 | US4698517 Power supply source control system |
| 10/03/1987 | CN86206609U Two-way scr voltage regulator |
| 09/30/1987 | EP0239278A2 Capacitor apparatus for reactive power compensation |
| 09/30/1987 | EP0238803A1 Stabilized power-supply circuit |
| 09/30/1987 | EP0238516A1 Electric power converter |