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)
10/1999
10/26/1999US5973936 Current-voltage regulator
10/26/1999US5973605 Thermistor monitor system
10/26/1999US5973565 DC bias feedback circuit for MESFET bias stability
10/26/1999US5973548 Internal supply voltage generating circuit for generating internal supply voltage less susceptible to variation of external supply voltage
10/26/1999US5973488 Method for balancing a current controller
10/26/1999US5973484 Voltage regulator circuit for semiconductor memory device
10/21/1999WO1999053601A1 Circuit for a power supply unit
10/21/1999DE19816806A1 Electronic circuit including e.g. VDMOS power output transistors in parallel
10/21/1999DE19816447A1 Schaltungsanordnung für ein Stromversorgungsgerät Circuit arrangement for a power supply
10/20/1999EP0951126A1 Compensation device and power transmission system using a compensation device
10/20/1999EP0950943A1 D.C. power supply
10/20/1999CN2344801Y Voltage stabilizer for electric heating blanket
10/20/1999CN2344800Y Intelligence voltage stabilizer
10/20/1999CN1232310A Compensation device and power transmission system using compensation device
10/20/1999CN1232173A Method for correction of measured value of measuring mechanism
10/19/1999US5969988 Voltage multiplier circuit and nonvolatile semiconductor memory device having voltage multiplier
10/19/1999US5969515 Apparatus and method for digital control of a power converter current
10/19/1999US5969512 Output voltage variable power circuit
10/19/1999US5969511 Method and device for continuous adjustment and regulation of transformer turns ratio, and transformer provided with such device
10/19/1999US5969509 Method and a device for control of a capacitor device for a shunt-connected compensator unit
10/17/1999WO1999050860A1 Power distribution network incorporating a voltage support transformer and process of use
10/14/1999WO1999052023A1 Method and arrangement for preventing overload
10/14/1999DE19916020A1 Power supply circuit structure
10/14/1999DE19832309C1 Integrated circuit with voltage regulator
10/13/1999EP0949739A2 Power supply apparatus
10/13/1999EP0948762A1 Voltage regulator circuits and semiconductor circuit devices
10/13/1999CN2343617Y Ultra-low voltage full-automatic ac voltage-stabilized source
10/13/1999CN2343616Y Intelligent voltage stabilizer
10/13/1999CN1231780A Voltage controlled variable current reference
10/12/1999US5966562 Fixing device having temperature control means
10/12/1999US5966026 Output buffer with improved tolerance to overvoltage
10/12/1999US5966004 Electronic system with regulator, and method
10/12/1999US5966003 DC-DC converter control circuit
10/12/1999US5966002 Method and apparatus for adapting voltage control in alarm systems
10/12/1999US5964309 Power supply system, electric vehicle with power supply system mounted thereon, and method of regulating amount of fuel supply
10/07/1999WO1999031560A8 Digitally controlled illumination methods and systems
10/06/1999EP0948123A1 Protecting method for inrush current preventing resistor
10/06/1999EP0947905A2 Solar power generating device
10/06/1999EP0947904A2 AC power supply using sunlight
10/06/1999EP0947808A1 Method for calibrating a sensor
10/06/1999EP0946911A1 Inverter circuit biased to limit the maximum drive current to a following stage and method
10/06/1999CN1231037A Hybrid regulator
10/06/1999CN1230817A Automatic reactive power control method for electric power system
10/06/1999CN1230709A Solar generating device
10/06/1999CN1230708A Power supply unit
10/06/1999CN1045494C Balance control device of driving signal of power switching tube
10/05/1999US5963443 Power circuit for driving a capacitive load
10/05/1999US5963064 Linear transfer voltage to current circuit
10/05/1999CA2153111C Air conditioning device
10/05/1999CA2030686C Direct-arc electric furnace fed with controlled current and method to feed a direct-arc furnace with controlled current
09/1999
09/30/1999WO1999049377A1 Circuit for controlling and measuring the load current through a load
09/30/1999DE19811605A1 Schaltungsanordnung zur Ansteuerung eines Pulsweitenmodulators in einem Schaltnetzteil Circuit arrangement for driving a pulse width modulator in switching power supply
09/30/1999CA2265003A1 Switched converter with multiple regulated outputs
09/29/1999CN2341310Y Static imaginary power compensator
09/29/1999CN1230050A Series electronic switching power source device
09/29/1999CN1229922A Current sensing circuit
09/28/1999US5959855 Voltage control with feedback utilizing analog and digital control signals
09/28/1999US5959816 Voltage regulator circuit
09/28/1999US5959471 Method and apparatus for reducing the bias current in a reference voltage circuit
09/28/1999US5959443 Controller circuit for controlling a step down switching regulator operating in discontinuous conduction mode
09/28/1999US5959368 Power supply apparatus for supplying power from a plurality of batteries to a plurality of loads, and electronic appliance using the power supply apparatus
09/28/1999US5958614 Fuel cell generating set including lysholm compressor
09/23/1999WO1999048204A1 Circuit for controlling a pulse width modulator in a switched-mode power supply
09/22/1999EP0944100A1 Method and apparatus for controlling electromagnetic valve in industrial vehicle
09/22/1999EP0943975A1 Bias voltage control circuit for a floating well in a semiconductor integrated circuit
09/22/1999EP0943974A1 Voltage regulator circuit
09/22/1999EP0943124A1 High impedance bias circuit for ac signal amplifiers
09/22/1999CN1229302A Charge pump for generating negative voltage
09/21/1999US5955925 Digital AGC circuit
09/21/1999US5955915 Circuit for limiting the current in a power transistor
09/21/1999US5955914 Voltage regulator for a voltage pump in a DRAM
09/21/1999US5955891 Semiconductor integrated circuit device with output circuit
09/21/1999US5955885 Battery power supply device characteristic measuring apparatus and measuring method
09/21/1999US5955871 Voltage regulator that bases control on a state of a power conservation mode
09/21/1999US5955870 Multi-mode low power voltage regulator
09/21/1999US5955792 Method and device for driving a load
09/16/1999WO1999046843A1 Bit-weighted regulator
09/16/1999WO1999046655A1 Power circuit for low power solenoid operation using an ac or dc supply
09/16/1999WO1999046611A2 Power supply circuit
09/16/1999DE19809999A1 Energy-saving network
09/15/1999CN2338787Y Large current output voltage stabilizer
09/15/1999CN1228599A Power source circuit for generating positive and negative voltage sources
09/14/1999CA2184731C An electrically controllable inductor
09/10/1999WO1999045449A1 Ldo regulator dropout drive reduction circuit and method
09/08/1999EP0940907A1 Power supply for mains operated electronic devices, in particular for electric meters and/or remote control receivers, for generating at least a DC voltage with an integral predefined capacity
09/08/1999EP0939925A1 Self-compensating resonant switching power converter
09/08/1999CN2337598Y Ultra-wide range high-reliability, full-automatic AC voltage-stabilizing electric sources
09/07/1999US5949671 Power supply with re-configurable outputs for different output voltages and method of operation thereof
09/07/1999US5949668 Power amplifier with multiple switched output stages, and method and driver for operating same
09/07/1999US5949667 Supply device with converters connected in redundant mode
09/07/1999US5949666 Staircase adaptive voltage generator circuit
09/07/1999US5949279 Devices for sourcing constant supply current from power supply in system with integrated circuit having variable supply current requirement
09/07/1999US5949275 Dual output voltage boost circuit
09/07/1999US5949274 Constant voltage source
09/07/1999US5949228 Feedback circuit to compensate for process and power supply variations
09/07/1999US5949227 Low power circuit for disabling startup circuitry in a voltage Reference circuit
09/02/1999WO1999044267A1 POWER SUPPLIES FOR ECUs
09/02/1999WO1999044110A1 Electrical appliance
09/02/1999WO1999044109A1 Apparatus and method for digital control of a power converter current
09/02/1999WO1999031560A3 Digitally controlled illumination methods and systems