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)
02/2008
02/19/2008US7332877 Light controller
02/19/2008US7332875 Illumination apparatus, and an illumination head and power source device used therefore
02/19/2008US7332870 Driving voltage controller for light-emitting source
02/19/2008US7332867 Apparatus and method for driving lamp of liquid crystal display device
02/19/2008US7332833 Switching circuit for master-slave feeding mode of low voltage power supply
02/19/2008US7332828 Causing operation of load in alternate, reduced peak power mode
02/19/2008US7332699 Feed-forward methods and apparatus for setting the light intensities of one or more LEDs
02/19/2008CA2543025C Setting apparatus for remote monitoring and controlling system
02/19/2008CA2347890C High efficiency power supply for a two-wire loop powered device
02/19/2008CA2287798C Static voltage regulator
02/14/2008WO2008019099A1 Dual mode single temperature trimming
02/14/2008WO2008018250A1 Solar photovoltaic power generation system, vehicle, solar photovoltaic power generation system control method, and computer readable recording medium having recorded therein program for causing computer to execute that control method
02/14/2008WO2008018095A1 Fixed-off-time power factor correction controller
02/14/2008WO2008018094A1 Control device for power factor correction device in forced switching power supplies
02/14/2008US20080037186 Power switching circuit and liquid crystal display using same
02/14/2008US20080036637 Current addition type digital analog converter
02/14/2008US20080036531 Regulated charge pump circuit and application in power stages employing normally on power switching devices
02/14/2008US20080036530 Low power reference voltage circuit
02/14/2008US20080036529 Power supply circuit, display driver, electro-optical device, and electronic instrument
02/14/2008US20080036528 Charge pump circuit
02/14/2008US20080036526 Control circuit for multi-phase converter
02/14/2008US20080036496 Current mode logic-cmos converter
02/14/2008US20080036439 Apparatus to prevent overheating of a print head, and a method thereof
02/14/2008US20080036438 Switching regulator
02/14/2008US20080036437 Multiple output stage converter and operating method thereof
02/14/2008US20080036436 Voltage Regulator and Voltage Regulation Method
02/14/2008US20080036435 Phase control device for DC/DC converter
02/14/2008US20080036434 Semiconductor integrated circuit
02/14/2008US20080036433 Voltage converting apparatus with auto-adjusting boost multiple
02/14/2008US20080036432 Power supply device
02/14/2008US20080036431 Voltage Regulator Having Overvoltage Protection
02/14/2008US20080036430 Apparatus and method for controlling a power converter device
02/14/2008US20080036399 System and methods for dimming a high pressure arc lamp
02/14/2008DE202006015456U1 Batteriebetriebenes Navigationsgerät Battery-powered navigation device
02/14/2008DE102006054539B3 Generating low voltage power supply for washing machine controller, employs power supply unit switched by separate capacitor power supply and program selector switch
02/13/2008EP1887333A1 Microelectronic device equipped with a thermal protection circuit and thermal protection method for a microelectronic device
02/13/2008EP1886153A2 Bi-directional mos current sense circuit
02/13/2008EP1678768A4 Process and apparatus for improving led performance
02/13/2008EP1652189B8 Area efficient charge pump
02/13/2008EP1293031B1 Multi-phase pulse width modulated voltage regulator
02/13/2008CN201022186Y Three-phase permanent magneto voltage adjuster
02/13/2008CN101124621A Mechanical motion sensor and low-power trigger circuit
02/13/2008CN101123394A DC power conversion circuit having self-auxiliary power and self-protection
02/13/2008CN101122803A Adjustable current source device using loaded suspension control circuit
02/13/2008CN100369369C Step-up / step-down circuit
02/13/2008CN100369262C Field effect transistor, integrated circuit and manufacturing method
02/12/2008US7330364 Device for converting high voltage alternating current (AC) to low voltage direct current (DC) and method therefor
02/12/2008US7330362 Switching converter having at least two converter stages
02/12/2008US7330067 Semiconductor apparatus
02/12/2008US7330066 Reference voltage generation circuit that generates gamma voltages for liquid crystal displays
02/12/2008US7330019 Adjusting on-time for a discontinuous switching voltage regulator
02/12/2008US7330018 Step-down controller circuit
02/12/2008US7330017 Driver for a power converter and a method of driving a switch thereof
02/12/2008US7330002 Circuit for controlling LED with temperature compensation
02/12/2008US7330000 Discharge lighting bulbs control system
02/12/2008US7329999 Lamp lighting circuit
02/12/2008US7329998 Lighting system including photonic emission and detection using light-emitting elements
02/12/2008US7329997 System including an electronic ballast for use with a spa
02/07/2008WO2008016705A1 Extended range rms-dc converter
02/07/2008WO2006138476A3 Multiplexed temperature sensing circuit for hid lamp ballast
02/07/2008US20080031651 Power unit and image forming system
02/07/2008US20080031059 Internal voltage generator capable of regulating an internal voltage of a semiconductor memory device
02/07/2008US20080031058 Internal voltage generator capable of regulating an internal voltage of a semiconductor memory device
02/07/2008US20080030263 Controller for oring field effect transistor
02/07/2008US20080030262 Circuit Arrangement And Method For Generating A Square Wave Signal
02/07/2008US20080030261 Charge Pump Circuit
02/07/2008US20080030184 System for smoothing output voltage or power generator
02/07/2008US20080030183 Method of feedback controlling a switched regulator
02/07/2008US20080030182 Power array system and method
02/07/2008US20080030181 Control circuit and method for a constant on-time PWM switching converter
02/07/2008US20080030180 Switching Regulator
02/07/2008US20080030179 Voltage regulator
02/07/2008US20080030178 Circuits and methods for adjustable peak inductor current and hysteresis for burst mode in switching regulators
02/07/2008US20080030177 Soft-start circuit of linear voltage regulator and method thereof
02/07/2008US20080030176 Power array system and method
02/07/2008US20080030175 Multi-function voltage regulator
02/07/2008US20080030174 Load driving circuit and protection method
02/07/2008US20080030173 Switching Power Supply Unit
02/07/2008US20080030151 Light source driving device
02/06/2008EP1884856A1 Voltage/current converter circuit and method for providing a ramp current
02/06/2008EP1884855A2 Voltage generator circuit and method for controlling thereof
02/06/2008EP1884018A2 System and method for driving a power field-effect transistor (fet)
02/06/2008EP1883880A2 Device, system, and method for providing a low-voltage fault ride-through for a wind generator farm
02/06/2008EP1883878A1 Large kitchen professional electrical apparatus with adaptive feeding
02/06/2008EP1883877A1 Apparatus and method to compensate for effects of load capacitance on power regulator
02/06/2008CN201018701Y Numerical control voltage-regulating green illumination power-saving device
02/06/2008CN201018285Y Numerical control multi-order switching reactive compensator
02/06/2008CN201017255Y High power high precision power-supply apparatus
02/06/2008CN201017254Y Direct current constant voltage constant current source special for high voltage velocity modulated valve device
02/06/2008CN201017253Y Wide region and contactless communion voltage-stabilized power supply
02/06/2008CN201017252Y High precision controllable electric power
02/06/2008CN201017251Y Electric capacity voltage dividing type DC voltage-stabilized power supply
02/06/2008CN201017250Y Complete digital multifunctional experimental laboratory controllable power-supply apparatus
02/06/2008CN101120503A Converter control apparatus
02/06/2008CN101119031A Photovoltaic three-phase grid control method for fast and steadily implementing maximal power tracing
02/06/2008CN101118803A Distributing transformator electronic type loaded automatic wide region voltage regulating device
02/06/2008CN101118779A Electrical resistance bias canceling circuit and electrical resistance compensation process using same
02/06/2008CN101118450A Returning type current limiting circuit used for linearity voltage stabilizer
02/06/2008CN101118449A Low-noise programmable current source
02/06/2008CN100367328C Projection type video display apparatus