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