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