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