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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07/18/2000 | US6091282 High voltage generating circuit for a semiconductor memory circuit |
07/18/2000 | US6091281 High precision reference voltage generator |
07/18/2000 | US6091268 Potential detecting circuit and semiconductor integrated circuit |
07/18/2000 | US6091164 Single inverter with dual boost |
07/18/2000 | CA2193477C Load tap changer |
07/13/2000 | DE19920973A1 Equipment for improving power factor of air conditioning system equipped with inverter frequency changer by forced modification of the supply current wave shape |
07/12/2000 | EP1018799A2 Low noise step-down switching regulator circuits with programmable slew rate limiter and methods of use |
07/12/2000 | EP1018675A2 Power supply device, control method for the power supply device, portable electronic device, timepiece, and control method for the timepiece |
07/12/2000 | EP1018127A1 Power distribution network incorporating a voltage support transformer and process of use |
07/12/2000 | EP1018064A4 Solid-state high voltage linear regulator circuit |
07/12/2000 | EP1018064A1 Solid-state high voltage linear regulator circuit |
07/12/2000 | EP0920658A4 Precision bandgap reference circuit |
07/12/2000 | CN2387573Y AC power source stablizer |
07/12/2000 | CN1260082A Method and arrangement in a DC-to-DC converter |
07/12/2000 | CN1260078A Apparatus for controlling and power feed a number of power-consuming parts |
07/12/2000 | CN1260077A Apparatus for power supplying and controlling a number of external device |
07/12/2000 | CN1259643A Device for improving power factor for air conditioner |
07/12/2000 | CN1054443C Dual voltage voltage regulator with foldback current limiting |
07/11/2000 | US6087893 Semiconductor integrated circuit having suppressed leakage currents |
07/11/2000 | US6087891 Integrated power supply voltage generators having reduced susceptibility to parasitic latch-up during set-up mode operation |
07/11/2000 | US6087889 Fuse circuit for a semiconductor device |
07/11/2000 | US6087813 Internal voltage generation circuit capable of stably generating internal voltage with low power consumption |
07/06/2000 | WO2000039653A1 A method and system for alternating current regulation |
07/05/2000 | EP1016204A1 Circuit device for approximately-sinusoidal lowering of an ac voltage |
07/05/2000 | EP1016201A1 Adjustable voltage converter utilizing a charge pump |
07/05/2000 | CN1258958A Harmonic suppression equipment for air conditioner and its suppression method |
07/05/2000 | CN1258957A Supply unit for electronic machine |
07/05/2000 | CN1258950A Power circuit and method |
07/05/2000 | CN1258870A Automatic D/A current-regulating constant-voltage method |
07/05/2000 | CN1054218C Power source device for electric meter |
07/04/2000 | US6084783 Method and device for controlling a power converter with an auxiliary output |
07/04/2000 | US6084389 Voltage regulator with internal generation of a logic signal |
07/04/2000 | US6084387 Power source circuit for generating positive and negative voltage sources |
07/04/2000 | US6084386 Voltage generation circuit capable of supplying stable power supply voltage to load operating in response to timing signal |
07/04/2000 | US6084385 System and method for multi-mode low power voltage regulator |
07/04/2000 | US6084383 Synchronizer module for a multivoltage power supply |
07/04/2000 | US6082122 Method for calibrating a measured value of detecting means |
06/29/2000 | DE19951490A1 Medical implant, e.g. pacemaker, comprises primary and secondary digital signal processors, analogue and digital circuits, and power source |
06/28/2000 | EP1014549A2 DC-to-DC converter with inductor current sensing and related methods |
06/28/2000 | EP1012946A1 Method and device for improving the quality of voltage of a secondary supply unit |
06/28/2000 | CN2385462Y Rectifier switch voltage stabilizer for motorcycle |
06/28/2000 | CN2384730Y Wireless remote control coding and decoding elecric welding machine current controller |
06/28/2000 | CN1258392A Adjustable voltage converter utilizing charge pump |
06/28/2000 | CN1054009C Method and device for automatically changing upper, balanced and lower voltage in electric power saving transformer |
06/27/2000 | US6081107 Control circuit for controlling a floating well bias voltage in a semiconductor integrated structure |
06/27/2000 | US6081106 Voltage setpoint error reduction |
06/27/2000 | US6081105 Multi-mode low power voltage regulator |
06/27/2000 | US6081046 Power supply circuit for microcomputer |
06/22/2000 | WO2000036739A1 Power converter circuit and method for controlling |
06/22/2000 | WO2000036735A1 Switched load voltage regulation circuit |
06/22/2000 | WO2000036483A2 Continuous feed-forward ac voltage regulator |
06/21/2000 | EP1010231A1 Method and device for offsetting network voltage distortions |
06/21/2000 | EP1010230A1 An apparatus for controlling and power feeding a number of power-consuming parts |
06/21/2000 | EP1010048A1 Voltage regulating circuit for eliminating "latch-up |
06/21/2000 | DE4091340C2 Pulse welding appts. improving welding quality |
06/21/2000 | CN2384367Y Common interference-resisting power factor corrector |
06/21/2000 | CN2384249Y AC power voltage stabilizer |
06/21/2000 | CN2383443Y Automatic controller for ordinary electric rice pot |
06/20/2000 | US6078488 Fault-tolerant analog output circuit |
06/20/2000 | US6078210 Internal voltage generating circuit |
06/20/2000 | US6078168 Parallel voltage regulator |
06/20/2000 | US6078148 Transformer tap switching power supply for LED traffic signal |
06/15/2000 | WO2000035073A1 An apparatus for controlling and managing electrically-driven users |
06/14/2000 | EP0740386B1 Power supply voltage supplying circuit |
06/14/2000 | CN2383262Y Power factor computer automatic compensator |
06/14/2000 | CN1256441A Power supply device, portable electronic device, timing device and their control method thereof |
06/13/2000 | US6075353 Power circuit for low power solenoid operation using an AC or DC supply |
06/13/2000 | US6075351 Control system with nonlinear network for load transients |
06/13/2000 | US6075349 Compensation device and power transmission system using a compensation device |
06/13/2000 | CA2229071C Appliance ac power control apparatus |
06/08/2000 | WO2000033153A1 Voltage regulator modules (vrm) with current sensing and current sharing |
06/07/2000 | EP1006424A1 Capacitors applied circuit |
06/07/2000 | CN1255822A Two-wire circuit equipment |
06/06/2000 | US6072742 Semiconductor memory device with a voltage down converter stably generating an internal down-converted voltage |
06/06/2000 | US6072305 Electronic tap position indication system |
06/06/2000 | US6072304 Circuit and method for triggering a thyristor |
06/02/2000 | WO2000031603A1 Circuit for producing a stabilised supply voltage for a plurality of users |
05/31/2000 | DE19906090C1 Generating supply D.C. voltage from variable input D.C. voltage involves producing supply voltage in three related input voltage intervals depending on input D.C. voltage |
05/31/2000 | CN1254870A Method and equipment for overall increasement of electricity quality |
05/30/2000 | US6069833 Voltage drop circuit enabling ROM to read data with high reliability |
05/30/2000 | US6069470 Circuit configuration for producing a load-independent DC voltage |
05/25/2000 | WO2000030251A1 A current generator for delivering a reference current of which the value is proportional to the absolute temperature |
05/25/2000 | WO2000030241A1 Voltage switch-over device |
05/25/2000 | WO2000029919A1 Rapid on chip voltage generation for low power integrated circuits |
05/25/2000 | CA2349611A1 Voltage switch-over device |
05/24/2000 | EP1003290A2 Electronic devices and low-voltage detection method |
05/24/2000 | CN2379826Y Intelligent manostat for road lamp |
05/24/2000 | CN1254117A Energy-saving circuit of display apparatus and its method |
05/24/2000 | CN1254113A Long-life multipurpose new type D. C. power supply |
05/23/2000 | US6067239 Smoothing circuit for switching power supply |
05/23/2000 | US6066979 Solid-state high voltage linear regulator circuit |
05/23/2000 | US6066945 Method and device for automatically switching three-phase voltage for power saving transformer |
05/23/2000 | US6066943 Capacitive-summing switch-mode power conversion control |
05/18/2000 | DE19950193A1 Mittel-Versorgungsreferenzspannungsgenerator Medium supply reference voltage generator |
05/17/2000 | EP1001522A1 Method and device for controlling a DC brushless current generator |
05/17/2000 | CN1253450A Central power supply reference generator |
05/17/2000 | CN1253407A Current supply device |
05/17/2000 | CN1052588C Regulating method for stepping switch |
05/16/2000 | US6064937 Compound cruise control system and method for solar cars |
05/16/2000 | US6064275 Internal voltage generation circuit having ring oscillator whose frequency changes inversely with power supply voltage |