| 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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| 09/30/1987 | EP0238509A1 Solenoid driver control unit. |
| 09/30/1987 | CN87100466A Control apparatus for ac-dc converter |
| 09/30/1987 | CN86205993U Wide range and energy-saving v-mos ac voltage stabilizer |
| 09/29/1987 | US4697229 Electronic control equipment |
| 09/29/1987 | US4697136 Inverter system for inputting alternating current and direct current in combination |
| 09/29/1987 | US4696785 Testable voted logic power circuit and method of testing the same |
| 09/29/1987 | CA1227536A1 Var generator having controlled discharge of thyristor switched capacitors |
| 09/29/1987 | CA1227535A1 Power conversion device for solar cell |
| 09/24/1987 | WO1987005760A1 Cmos voltage translator |
| 09/23/1987 | EP0237652A1 AC current sensing circuit |
| 09/23/1987 | CN86210746U Three phase digital power modulator |
| 09/22/1987 | US4695785 Circuit arrangement for feeding an electrical load from a solar generator |
| 09/22/1987 | US4695737 Microcomputer controlled power regulator system and method |
| 09/16/1987 | EP0236372A1 Power supply circuitry for electric or electronic controllers or regulators |
| 09/16/1987 | EP0073818B1 Welding apparatus |
| 09/16/1987 | CN86208771U Compensation type automatic ac voltage-stabilizing power source |
| 09/16/1987 | CN86206136U Voltage-stabilizing power source with protection circuit |
| 09/15/1987 | US4694239 Electronic voltage regulating device with compensation for thermal dissipation, particularly for alternators |
| 09/15/1987 | US4694193 Fault recognition circuit for parallel power supply devices feeding a user |
| 09/15/1987 | CA1226897A1 Current supply for series-fed electronic circuits |
| 09/09/1987 | EP0235401A1 Power supply switch circuit |
| 09/08/1987 | US4692689 FET voltage reference circuit with threshold voltage compensation |
| 09/08/1987 | US4692686 Low-distortion line voltage regulator |
| 09/02/1987 | EP0234610A2 Circuit arrangement for regulating high voltages |
| 09/02/1987 | EP0234040A1 Control process for a quick reactive current compensation of parallel thyristor-controlled inductances |
| 09/02/1987 | EP0231211A4 Electronic control circuit. |
| 09/02/1987 | EP0074391B1 Regulated power supply |
| 09/01/1987 | US4691159 Partial shunt switching limiter for a spacecraft solar-panel or like power-source array |
| 09/01/1987 | US4691158 Method of operating a secondary battery to recondition the battery |
| 09/01/1987 | US4691124 Self-compensating, maximum speed integrated circuit |
| 09/01/1987 | US4691123 Semiconductor integrated circuit with an internal voltage converter circuit |
| 08/26/1987 | EP0233224A1 Device for filtering and stabilizing transients in the voltage of a network |
| 08/25/1987 | US4689735 Power supply for single-phase traction system |
| 08/25/1987 | US4689548 Phase controlled regulator |
| 08/25/1987 | US4689547 Multiple location dimming system |
| 08/18/1987 | US4688162 Rectifier control apparatus with improved power factor |
| 08/18/1987 | US4687985 Two terminal control switch having a main switch and a saturable current transformer whose primary winding is series connected with the main switch |
| 08/18/1987 | US4687970 Digital cathode current control loop |
| 08/18/1987 | CA1225699A1 Integrated circuit protection circuit |
| 08/12/1987 | EP0231987A2 Automatic switching apparatus for an electrical appliance |
| 08/12/1987 | EP0231211A1 Electronic control circuit |
| 08/12/1987 | EP0128182B1 Method and apparatus for automatically setting the demand phase lag input to an induction-motor power factor controller |
| 08/11/1987 | US4686448 Slewing power supply for programmable phase shifter drive |
| 08/11/1987 | US4686447 Static var compensators |
| 08/11/1987 | US4686384 Fuse programmable DC level generator |
| 08/06/1987 | DE3603482A1 Adjustable semi-digital voltage control circuit |
| 08/05/1987 | EP0231012A2 Control apparatus for AC-DC converter |
| 08/05/1987 | CN86207509U 硅管调谐器 Silicon tube tuner |
| 08/04/1987 | US4684878 Transistor base current regulator |
| 08/04/1987 | US4684877 Electrical system utilizing a concentric collector PNP transistor |
| 08/04/1987 | US4684876 Voltage regulating device using transistor means for voltage clipping and having load current compensation |
| 07/30/1987 | WO1987004538A1 Scheme for rapid adjustment of network impedance |
| 07/29/1987 | CN86202311U Continuous regulator for high-power d.c. regulated power supply |
| 07/29/1987 | CN86100399A High power high stability single phase (three phase) ac voltage stabilizer |
| 07/28/1987 | US4683415 Line frequency switching power supply |
| 07/28/1987 | US4683382 Power-saving voltage supply |
| 07/22/1987 | EP0229726A1 Delay regulation circuit |
| 07/21/1987 | CA1224543A1 Constant-current source circuit and differential amplifier using the same |
| 07/15/1987 | EP0228796A1 Start controlling circuit for adapting a constant current generator to a wide variety of loads |
| 07/15/1987 | CN85205036U Super stepping tracking type numerically controlled ac stabilizer |
| 07/14/1987 | US4680667 Solenoid driver control unit |
| 07/14/1987 | US4680536 Dimmer circuit with input voltage compensated soft start circuit |
| 07/14/1987 | US4680535 Stable current source |
| 07/14/1987 | US4680508 Load control circuit |
| 07/14/1987 | US4680483 Comparator circuit |
| 07/14/1987 | CA1224247A1 Voltage controller |
| 07/14/1987 | CA1224246A1 Static var generator having reduced harmonics |
| 07/08/1987 | EP0227924A2 Reactive power regulation device for controlling reactive power and correcting power factor |
| 07/08/1987 | CN86107978A Inverse current transformer system common to ac and dc inputs |
| 07/07/1987 | US4679130 Programmable power supply |
| 07/07/1987 | US4678983 DC power supply with adjustable operating point |
| 07/02/1987 | WO1987003976A1 Direct voltage stabilizer |
| 07/01/1987 | EP0227147A1 Integrated circuit containing a load capacitance and an integrated reference source |
| 07/01/1987 | EP0226725A1 Stabilizer circuit for a microcomputer |
| 06/30/1987 | US4677536 AC Current sensing circuit |
| 06/30/1987 | US4677519 Short-circuit protected mains supply unit, especially for television receivers |
| 06/30/1987 | US4677369 CMOS temperature insensitive voltage reference |
| 06/30/1987 | CA1223636A1 Phase-regulated switching circuit |
| 06/24/1987 | EP0226249A1 Power supply circuit |
| 06/24/1987 | CN86204024U Logically controlled automatic alternating voltage stabilizer |
| 06/24/1987 | CN85204548U Fixed-point stabilizer |
| 06/23/1987 | US4675802 Three-phase-to-three-phase power converter |
| 06/23/1987 | US4675770 Multiple voltage regulator integrated circuit having control circuits for selectively disabling a voltage regulator in an over-current condition |
| 06/23/1987 | US4675594 Voltage-to-current converter |
| 06/23/1987 | US4675557 CMOS voltage translator |
| 06/18/1987 | WO1987003753A1 D.c. motor control system |
| 06/18/1987 | WO1987003713A1 Power controller |
| 06/17/1987 | CN85205400U Self-compensative and non-phase angle constant-power controller |
| 06/16/1987 | US4673866 Constant voltage generator using memory transistors |
| 06/16/1987 | US4673864 Circuit comprising series-connected semiconductor elements |
| 06/16/1987 | US4673850 Universal motor control system |
| 06/16/1987 | US4673832 Safety device for electronic equipments |
| 06/16/1987 | US4673825 Uninterruptible power supply with isolated bypass winding |
| 06/16/1987 | US4673824 Power supply switch circuit |
| 06/16/1987 | EP0225657A1 Method for controlling several electrical loads |
| 06/11/1987 | DE3542765A1 Supply circuit |
| 06/09/1987 | US4672522 Power factor correcting network |
| 06/09/1987 | US4672301 Power controller circuit with automatic correction for phase lag between voltage and current |
| 06/09/1987 | US4672298 Power factor correction system |
| 06/09/1987 | US4672226 Redundant resistance temperature detector power supply system |