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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01/08/2008 | US7317287 Circuit for an LED array |
01/03/2008 | WO2008001163A1 Voltage regulation apparatus and method of regulating a voltage |
01/03/2008 | WO2007015889A3 Current mode control with feed-forward for power devices |
01/03/2008 | WO2005091943A3 Methods for electrically isolating a portable electrically-operated device and converter module for portable electrically-operated device |
01/03/2008 | US20080001656 Semiconductor integrated circuit |
01/03/2008 | US20080001655 Programmable power gating circuit |
01/03/2008 | US20080001654 Internal voltage generator |
01/03/2008 | US20080001653 Internal voltage generator of semiconductor device |
01/03/2008 | US20080001652 Electronic circuit device |
01/03/2008 | US20080001651 N-channel negative charge pump |
01/03/2008 | US20080001590 AC-to-DC voltage regulator |
01/03/2008 | US20080001589 Switching power supply equipment |
01/03/2008 | US20080001587 DC to DC voltage converter |
01/03/2008 | US20080001586 Control Circuit for Controlling an Electronic Circuit and Method for This |
01/03/2008 | US20080001585 Low noise, low dropout regulators |
01/03/2008 | US20080001584 Power supply apparatus and method for providing voltage |
01/03/2008 | US20080001583 USB charger for commercial transport vehicle |
01/03/2008 | US20080001582 Internal voltage generator of semiconductor device |
01/03/2008 | US20080001581 Control System for Static VAR Compensator |
01/03/2008 | US20080001552 Input current limiting circuit and driving device using the same |
01/03/2008 | US20080001550 Multi-Lamp Driver With Active Current Regulator |
01/02/2008 | EP1873688A2 Semiconductor device |
01/02/2008 | EP1872187A1 Constant-voltage power supply circuit with fold-back-type overcurrent protection circuit |
01/02/2008 | EP1721228A4 Automatic power factor correction using power measurement chip |
01/02/2008 | CN201001084Y Universal switch power source voltage regulation controlling device |
01/02/2008 | CN201001032Y AC voltage-limiting and current-limiting safety explosion-proof DC voltage stabilizing power source device |
01/02/2008 | CN201000584Y Reactive power dynamic auto compensator |
01/02/2008 | CN201000583Y Voltage stabilizer for providing energy by AC power supply |
01/02/2008 | CN101099121A High efficiency dc-to-dc synchronous buck converter |
01/02/2008 | CN101098079A Electric power supply apparatus and method of synchronously operating power converter |
01/02/2008 | CN101097694A Reference voltage generating circuit and liquid crystal display device using the same |
01/02/2008 | CN101097456A 电压调节器 Voltage Regulator |
01/02/2008 | CN101097455A Method of forming a feedback netork and structure therefor |
01/02/2008 | CN101097454A Voltage regulator |
01/02/2008 | CN101097453A Constant-current controller capable of communicating |
01/02/2008 | CN100359781C Charging apparatus and charging current detecting circuit thereof |
01/02/2008 | CN100359422C Equation power controller |
01/01/2008 | USRE39976 Multi-phase switching regulator |
01/01/2008 | US7315465 Methods of operating and forming chalcogenide glass constant current devices |
01/01/2008 | US7315464 Drive system and AC conversion device |
01/01/2008 | US7315298 Apparatus for controlling CCFL and method for operating the same |
01/01/2008 | US7315198 Voltage regulator |
01/01/2008 | US7315197 Limit swing charge pump and method thereof |
01/01/2008 | US7315196 Voltage generating circuit that produces internal supply voltage from external supply voltage |
01/01/2008 | US7315194 Booster circuit |
01/01/2008 | US7315160 Non linear controlled power supply with a linear soft start operation |
01/01/2008 | US7315159 Power supply for switching operation, electronic apparatus including the same, and method of controlling the same |
01/01/2008 | US7315158 Pulse width modulation circuit |
01/01/2008 | US7315157 ADC transfer function providing improved dynamic regulation in a switched mode power supply |
01/01/2008 | US7315156 System and method for controlling output-timing parameters of power converters |
01/01/2008 | US7315154 Voltage regulator |
01/01/2008 | US7315153 Switching power supply in an integrated circuit having a comparator with two threshold values, a synchronization input and output, voltage feedback and efficient current sensing |
01/01/2008 | US7315152 System for detecting current in an output stage of a power amplifier |
01/01/2008 | US7315151 Method and apparatus for electronic power control |
01/01/2008 | US7315150 Method of power conversion and apparatus which achieves high power factor correction using ripple current mode control |
01/01/2008 | US7315139 Light source having more than three LEDs in which the color points are maintained using a three channel color sensor |
01/01/2008 | US7315138 Cold cathode fluorescent discharge lamp apparatus and operating method for same |
01/01/2008 | US7315137 Method and apparatus for a CCFL driving device |
01/01/2008 | US7315097 Power saving control method and device in electronic device, and power saving electronic device |
01/01/2008 | US7315095 Voltage regulating apparatus supplying a drive voltage to a plurality of loads |
12/27/2007 | WO2007077386A3 Circuit for the current conditioning of a source at the maximum power point |
12/27/2007 | US20070296887 Power supply device, led driver, illumination device, and display device |
12/27/2007 | US20070296488 Semiconductor integrated circuits |
12/27/2007 | US20070296487 Voltage generation circuit and method thereof |
12/27/2007 | US20070296486 Voltage generator circuit, method for providing an output voltage and electronic memory device |
12/27/2007 | US20070296484 Time-Limiting Protection and Control Circuit for Protecting an Element by Limiting a Pulse Width of an Input Pulse |
12/27/2007 | US20070296391 Current-monitoring apparatus |
12/27/2007 | US20070296390 Method and apparatus for regulating voltage |
12/27/2007 | US20070296389 Switching regulators |
12/27/2007 | US20070296388 Power supply circuit |
12/27/2007 | US20070296387 Multi-phase dc-dc converter using auxiliary resistor network to feed back multiple single-ended sensed currents to supervisory controller for balanced current-sharing among plural channels |
12/27/2007 | US20070296386 Switching power-supply circuit and semiconductor integrated circuit |
12/27/2007 | US20070296385 Low ripple line-state dependent pwm dcdc converter controllers and methods for slic switching load regulation |
12/27/2007 | US20070296384 Method of forming a feedback network and structure therefor |
12/27/2007 | US20070296383 Non-Isolated Bus Converters with Voltage Divider Topology |
12/27/2007 | US20070296382 Dynamic multiphase operation |
12/27/2007 | US20070296381 Method of operating a converter circuit |
12/27/2007 | US20070296380 Power factor correction control circuit |
12/27/2007 | US20070296353 Switching Regulator Control Circuit, Current Drive Circuit, Light Emitting Apparatus, and Information Terminal Apparatus |
12/27/2007 | US20070296352 Display panel driving circuit |
12/27/2007 | US20070296350 Method and apparatus for packaging circuitry within a lightbulb |
12/27/2007 | US20070296275 Static Exciter System for a Generator and Method of Operation |
12/27/2007 | DE102006008839B4 Elektronische Einrichtung zur Regelung der Spannung über einer sich in High-Side befindlichen Last Electronic device for regulating the voltage across a load in the high-side |
12/26/2007 | EP1869318A2 Fiel configure ballast |
12/26/2007 | EP1766489A4 Voltage regulator with adaptive frequency compensation |
12/26/2007 | EP1664964A4 Dual stage voltage regulation circuit |
12/26/2007 | EP1119907B1 Method of and arrangement for converting voltage to current |
12/26/2007 | CN200997574Y Light-energy battery |
12/26/2007 | CN200997565Y USB power-supply circuit |
12/26/2007 | CN200997532Y Intelligent dynamic reactive compensated controller |
12/26/2007 | CN101095271A Secondary battery protection circuit with over voltage transient protection |
12/26/2007 | CN101093961A Resonance converter, and voltage stabilizing method for implementing light loading and idling load |
12/26/2007 | CN101093960A Minimizing saturation caused by power transfer in a communication system transformer |
12/26/2007 | CN101093400A Programmable sensing adjuster |
12/26/2007 | CN100358217C Switching circuit for low voltage power supply in master-slave power supply mode |
12/25/2007 | US7313048 Reset detection circuit in semiconductor integrated circuit |
12/25/2007 | US7313007 Power factor correction controller |
12/25/2007 | US7313005 PWM circuit control method |
12/25/2007 | US7312972 Actuator driving apparatus |
12/25/2007 | US7312652 Voltage regulation system |