| 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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| 04/12/1977 | US4017788 Programmable shunt voltage regulator circuit |
| 04/12/1977 | US4017787 Switching regulator having a load responsive alternate biasing circuit |
| 04/05/1977 | US4016484 Solid state weld timer |
| 04/05/1977 | US4016480 Dual function coupling system and method |
| 04/05/1977 | US4016408 Method and arrangement for supervising power supply systems |
| 03/29/1977 | US4015193 Firing circuit |
| 03/29/1977 | US4015191 D.C. high voltage power source with precise load current measurement |
| 03/22/1977 | US4013941 Transformer voltage regulator responsive to input variations |
| 03/22/1977 | US4013925 Overload protection circuit for voltage regulator |
| 03/15/1977 | US4012687 Driver amplifier for adjustable high voltage power supply |
| 03/15/1977 | US4012685 Regulated power supply for very high current with voltage and current programmable to zero |
| 03/15/1977 | US4012617 Power controller for microwave magnetron |
| 03/08/1977 | US4011499 Low loss a.c. voltage regulator |
| 03/08/1977 | US4011498 Controlling circuit |
| 03/08/1977 | US4011497 Current regulated power supply for very high output currents |
| 03/08/1977 | US4011152 System for autocontrolling and regulating the average value of the voltage applied to processes for the electrolytic coloring of anodized aluminum |
| 03/01/1977 | US4010403 Radiation protected solid state voltage regulating apparatus |
| 02/22/1977 | US4009433 Method and apparatus for compensating reactive power |
| 02/22/1977 | US4009420 Solid state power controller |
| 02/22/1977 | US4009091 Power source for an electroplating bath |
| 02/15/1977 | US4008429 Voltage translator for solid state watch |
| 02/15/1977 | US4008418 High voltage transient protection circuit for voltage regulators |
| 02/08/1977 | US4007415 Constant voltage generating circuit |
| 02/01/1977 | US4006400 Reference voltage regulator |
| 02/01/1977 | US4006396 Universal battery charging apparatus |
| 02/01/1977 | US4006368 A.C. voltage regulator including bilateral thyristor |
| 01/25/1977 | US4005353 Direct current voltage regulating circuitry |
| 01/18/1977 | US4004247 Voltage-current converter |
| 01/18/1977 | US4004215 Alternating current voltage regulator including saturable inductor and means to block the current flow therethrough |
| 01/18/1977 | US4004214 Phase-controlled voltage regulator |
| 01/18/1977 | US4004155 Bipolar regulated high voltage power supply |
| 01/11/1977 | US4002964 Temperature compensation technique |
| 01/04/1977 | US4001671 Apparatus for providing feedback to eliminate a dc component in the output of a static var generator |
| 01/04/1977 | US4001670 Static reactive power generating apparatus |
| 01/04/1977 | US4001667 Constant current-pulse led drive circuit |
| 01/04/1977 | US4001665 High efficiency power supply having a reactive buck automatic d.c. voltage regulator |
| 01/04/1977 | US4000643 Apparatus for producing a compensating voltage |
| 12/21/1976 | US3999117 Method and control apparatus for static VAR generator and compensator |
| 12/21/1976 | US3999115 Dynamic stabilizer for synchronous machines having torsional oscillations and method |
| 12/21/1976 | US3999114 Control unit for a converter |
| 12/21/1976 | US3999074 Fiber-optic photoelectric power control device |
| 12/21/1976 | US3999032 Current control in an electron beam welder |
| 12/14/1976 | US3997802 Temperature-compensated zener diode arrangement |
| 12/07/1976 | US3996508 Three phase primary power regulator |
| 12/07/1976 | US3996125 Apparatus for electrolytically processing aluminium material |
| 11/30/1976 | US3995266 Device for setting an electric command variable |
| 11/23/1976 | USRE29048 AC and DC regulator circuit |
| 11/09/1976 | US3991359 Power regulation system |
| 11/09/1976 | US3991344 Solid-state dimmer for dual high pressure discharge lamps |
| 11/02/1976 | US3990000 Alternating current control system |
| 11/02/1976 | US3989976 Solid-state hid lamp dimmer |
| 10/26/1976 | US3988662 Variable flux-reset ferroresonant voltage regulator |
| 10/19/1976 | US3987357 AC voltage regulator |
| 10/19/1976 | US3987355 High efficiency switching drive for a resonate power transformer |
| 10/12/1976 | US3986102 Low loss stabilized power supply circuit |
| 10/12/1976 | US3986101 Automatic V-I crossover regulator |
| 10/12/1976 | US3986100 DC-voltage supply means for an inverter |
| 10/12/1976 | US3986078 Devices for limiting the output voltage of current-controlled remote feed apparatuses |
| 10/12/1976 | US3986058 Transistor biasing circuit |
| 10/12/1976 | US3986047 Ramp release and reset circuit for a three phase voltage regulator |
| 10/05/1976 | US3984780 CMOS voltage controlled current source |
| 10/05/1976 | US3984761 Line powered voltage regulator |
| 09/28/1976 | US3983473 Series direct-current voltage regulator |
| 09/28/1976 | US3983469 Controlled reactance regulator circuit |
| 09/21/1976 | US3982173 AC-DC voltage regulator |
| 09/21/1976 | US3982171 Gate current source |
| 09/14/1976 | US3980936 D.C. control circuits |
| 09/14/1976 | US3980935 Volatile memory support system |
| 09/14/1976 | US3980538 Silver from photographic films |
| 09/07/1976 | US3979663 Constant current source |
| 09/07/1976 | US3979661 Power supply apparatus having an output voltage within a limited range regardless of input voltage variations and having minimal power dissipation |
| 09/07/1976 | US3979044 Carton construction |
| 08/31/1976 | US3978392 Energy transfer circuit |
| 08/31/1976 | US3978391 Direct current stabilizing device |
| 08/31/1976 | US3978339 Regulating installation for power transmitted to a three-phase user |
| 08/24/1976 | US3976931 AC regulator |
| 08/17/1976 | US3975673 Phase shifter |
| 08/10/1976 | US3974436 Circuit arrangement for an electric melting furnace |
| 08/10/1976 | US3974425 Isolator circuit with improved frequency response |
| 08/10/1976 | US3974395 Power generating apparatus |
| 07/27/1976 | US3971979 Voltage transducer |
| 07/20/1976 | US3970919 Regulating digital power supply |
| 07/20/1976 | US3970918 High speed, step-switching AC line voltage regulator with half-cycle step response |
| 07/06/1976 | US3968422 Method and apparatus for the static compensation of reactive power |
| 07/06/1976 | US3968421 Delayed on quick off regulator circuit for appliance control |
| 06/22/1976 | US3965408 Controlled ferroresonant transformer regulated power supply |
| 06/08/1976 | US3962625 Convertor station with parallel-connected static convertors |
| 06/08/1976 | US3962532 Power supply for an audio-video recording system |
| 06/01/1976 | US3961281 Digital control system |
| 06/01/1976 | US3961236 Constant power regulator for xerographic fusing system |
| 05/25/1976 | US3959715 Automatic controller for electrostatic precipitator |
| 05/25/1976 | US3959713 Solid state current limit circuit |
| 05/25/1976 | US3959668 Semiconductor bidirectional switch circuit |
| 05/18/1976 | US3958175 Current limiting switching circuit |
| 05/18/1976 | US3958172 Frequency reduction and power control circuit for thyristor line controllers |
| 05/18/1976 | US3958160 Current pulse generator |
| 05/18/1976 | US3958131 Solid state power control apparatus |
| 05/11/1976 | US3956687 Staggered stage shunt regulator |
| 05/11/1976 | US3956661 D.C. power source with temperature compensation |
| 05/11/1976 | US3956638 Battery paralleling system |