| 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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| 05/12/1993 | EP0402367B1 Active filter |
| 05/12/1993 | EP0375687B1 Thyristor on-load change-over switch |
| 05/12/1993 | CN2133086Y Reactive automatic compensation controllor |
| 05/12/1993 | CN2133085Y Gate-control preseter for reactive power compensater |
| 05/12/1993 | CN2133014Y A.c. regulated power supply for etectric power |
| 05/11/1993 | US5210481 Voltage/current characteristics control circuit particularly for protecting power transistors |
| 05/11/1993 | US5210443 Process and apparatus for parallel control of tapped transformers |
| 05/05/1993 | EP0540146A2 Apparatus for controlling consumption power for GaAs fet |
| 05/05/1993 | EP0539593A1 Semiconductor device and built-in power circuit |
| 05/05/1993 | EP0398943A4 Shunt regulator |
| 05/05/1993 | CN2132209Y Tri-phase fully controlled bridge dc adjustable regulated rectifier |
| 05/04/1993 | US5208527 Reference voltage generator with programmable thermal drift |
| 05/04/1993 | US5208485 Apparatus for controlling current through a plurality of resistive loads |
| 04/29/1993 | WO1993008639A1 Virtual current sensing system |
| 04/29/1993 | DE4135059A1 Continuous voltage controller with magnetically decoupled single transformers - employs thyristors in controlled inverter between additional windings of main transformer and sections of additional transformer |
| 04/28/1993 | EP0539353A2 Power distribution system for a phased array radar |
| 04/28/1993 | CN1071521A Clean power supply |
| 04/27/1993 | US5206580 Magnetoelectric generating system |
| 04/21/1993 | EP0537739A2 Power circuit |
| 04/21/1993 | EP0537137A1 Computer element performance enchancer |
| 04/21/1993 | CN2130272Y Power-supply stabilizer for headlight of mini-size motor-driven vehicle |
| 04/20/1993 | US5204594 Circuit for providing a signal proportional to the average current flowing through coils of a motor operated in both linear and PWM modes |
| 04/20/1993 | CA1316575C Control apparatus of resistance welders and control method thereof |
| 04/15/1993 | WO1993007674A1 Regulated auxiliary power supply |
| 04/14/1993 | EP0536877A1 Timed power saving device |
| 04/14/1993 | EP0536736A1 Power supply and control device particularly for RF ion thrustors |
| 04/14/1993 | EP0536693A2 Voltage regulator |
| 04/14/1993 | CN2129946Y Module type ac power supply automatic voltage regulator |
| 04/13/1993 | US5202819 Capacitor input type rectifier having a circuit for preventing inrush current |
| 04/13/1993 | US5202618 Power supply system for electric circuits different in operating voltage |
| 04/08/1993 | DE4233078A1 Stabilised DC power supply unit for, e.g. CD or cassette player and/or tuner - has switch reacting to device mode of operation to select state by which stabilisation is performed using series transistor |
| 04/07/1993 | EP0536011A1 Control and output protection system, especially for a programmable controller |
| 04/07/1993 | EP0535708A2 Controllable current source |
| 04/07/1993 | EP0535603A1 Active harmonic filter |
| 04/07/1993 | EP0535289A1 Method and a device for continuously controlling the power being supplied to an electric load using a controllable static switch |
| 04/07/1993 | CN2129484Y Power factor automatic compensater |
| 04/07/1993 | CN1070774A Reactive power compensating apparatus with higher harmonic suppressing function |
| 04/06/1993 | US5200692 Apparatus for limiting current through a plurality of parallel transistors |
| 04/06/1993 | US5200643 Parallel electric power supplies with current sharing and redundancy |
| 04/05/1993 | CA2052815A1 Method and apparatus for monitoring and maintaining an optimum balance between the main phases of a multi-phase multiple load local electrical distribution system |
| 04/01/1993 | WO1993006541A1 Device for generating intermediate voltages |
| 04/01/1993 | WO1993006540A1 Linear programming circuit for adjustable output voltage power converters |
| 04/01/1993 | DE4238892A1 Continuous reactive power compensation in AC lighting supplies - has bridge network with power transistors switched by PWM controller having phase variable control. |
| 03/31/1993 | EP0316410B1 Quantized duty ratio power sharing converters |
| 03/31/1993 | CN2129020Y Overcompensation AC voltage regulator |
| 03/30/1993 | US5198771 Potentiostatic apparatus and methods |
| 03/30/1993 | US5198701 Current source with adjustable temperature variation |
| 03/25/1993 | DE4131170A1 Vorrichtung zur erzeugung von zwischenspannungen Apparatus for generating intermediate voltages |
| 03/24/1993 | CN2128793Y Imaginary power automatic compensator |
| 03/23/1993 | US5196730 Arrangement of automatically restoring normal operation of latch-in relay |
| 03/18/1993 | WO1993005513A1 Circuit for controlling the programming voltage of programmable memories |
| 03/18/1993 | DE4130512A1 Signal gain and offset compensation appts. for electrical measurement signals, esp. for engine induction - uses operational amplifier with variable reference voltage and variable resistance to earth |
| 03/18/1993 | DE4130213A1 Control circuit for switched current regulator - uses comparator acting as pulse width modulator for controlling transistor switch element. |
| 03/17/1993 | EP0531945A2 Low-drop voltage regulator |
| 03/17/1993 | CN2128396Y Safety flame-proof dc regulated power supply made of integrated voltage-regulator |
| 03/16/1993 | US5194803 Superconductive voltage stabilizer having improved current switch |
| 03/16/1993 | US5194802 Transconductance current regulator using precisely sampled charges for current control |
| 03/16/1993 | US5194762 Mos-type charging circuit |
| 03/11/1993 | DE4129679A1 Current supply with polarity monitoring for communications appts. - detects DC voltage short-circuit to control output voltage regulator |
| 03/11/1993 | CA2077869A1 Variable frequency solenoid driver circuit |
| 03/10/1993 | EP0531101A2 Low-noise bias circuit for multiple current sources |
| 03/10/1993 | EP0530679A2 Series regulator to supply a d.c. load and its method of use |
| 03/10/1993 | EP0530347A1 Shunt coil controlled transformer |
| 03/10/1993 | EP0441805B1 Current regulator |
| 03/10/1993 | EP0291530B1 Multiple voltage-pulsed corona charging with a single power supply |
| 03/10/1993 | CN1069838A 包含两个谐振储能电路的电源 Contains two resonant tank circuit supply |
| 03/09/1993 | US5193211 Power saving dc-dc converter for radio pagers |
| 03/09/1993 | US5192917 Circuit and method for detecting an amplitude and offset deviation of two sinusoidal signals |
| 03/04/1993 | WO1993004527A1 Resonant power supplies |
| 03/04/1993 | WO1993004423A1 Method for temperature-compensating zener diodes having either positive or negative temperature coefficients |
| 03/04/1993 | WO1993004422A1 Low power switching power supply circuits and methods |
| 03/04/1993 | DE4127577A1 High voltage generation system from vehicle electrical circuit for electrostatic soot precipitator - uses voltage regulator producing theoretical value for at least one current regulator regulating flow through precipitator |
| 03/03/1993 | EP0530072A1 Method and device for control and regulation |
| 03/03/1993 | EP0529605A2 Method for current limitation of a series regulator and its application |
| 03/03/1993 | EP0529118A1 Current regulating circuit |
| 03/02/1993 | US5191520 Power supply system |
| 03/02/1993 | US5191278 High bandwidth low dropout linear regulator |
| 03/02/1993 | US5191226 Circuit for supplying plural loads via a smps and/or directly from an ac voltage source |
| 02/25/1993 | DE4226047A1 Eine interne spannungsversorgung erzeugender schaltkreis An internal power supply generating circuit |
| 02/25/1993 | DE4224202A1 DC control circuit for audio appts. - contains stabilised voltage output circuit for Zener diode, generating reference voltage |
| 02/24/1993 | CN1069366A 电源供电电路 Power supply circuit |
| 02/24/1993 | CN1069348A Logarithmic curve soft start circuit for switching power supply |
| 02/24/1993 | CA2076475A1 Control and regulation process and device |
| 02/23/1993 | US5189600 Combined power supply for main and stand-by power |
| 02/23/1993 | US5189317 Circuit for limiting the output voltage of a monolithic semiconductor power device which drives a resonant load connected to a power supply |
| 02/23/1993 | US5189316 Stepdown voltage generator having active mode and standby mode |
| 02/23/1993 | US5189307 Isolated current mirror with optical insulator generating feedback signal |
| 02/23/1993 | US5189283 Current to power crossover heater control |
| 02/18/1993 | WO1993003536A1 Power supply including two tank circuits |
| 02/17/1993 | CN2127193Y Electranic current adjusting unit |
| 02/17/1993 | CA2050199A1 Low power switching power supply circuits and methods |
| 02/16/1993 | US5187631 For controlling the power supply of an electrical load |
| 02/16/1993 | US5187429 Reference voltage generator for dynamic random access memory |
| 02/16/1993 | US5187428 Shunt coil controlled transformer |
| 02/16/1993 | US5187386 Low standby current intermediate dc voltage generator |
| 02/16/1993 | US5186170 Simultaneous radio frequency and magnetic field microprocessor reset circuit |
| 02/16/1993 | CA1313690C Voltage and current limiting power supply |
| 02/10/1993 | CA2072825A1 Timed power saving device |
| 02/09/1993 | WO1993003430A1 Phase-shifting transformer system |
| 02/09/1993 | US5185567 Power circuit for an LSI |