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
01/23/2008CN100364218C Dc/dc conversion circuits and relative display system
01/23/2008CN100364201C System interconnection inverter device
01/23/2008CN100363853C Multi-phase buck converter
01/22/2008USRE40016 Power factor correction control circuit
01/22/2008US7321258 Method and apparatus for controlling the charge of a bootstrap capacitor for non-synchronous type DC-DC converter
01/22/2008US7321257 Semiconductor device capable of detecting an open bonding wire using weak current
01/22/2008US7321255 Voltage generating circuit, data driver and display unit
01/22/2008US7321224 DC-DC converter with clamping capacitor and output winding for reduced output voltage ripple
01/22/2008US7321223 Switching power supply apparatus
01/22/2008US7321222 Switching regulator with DC offset (bias) in controller
01/22/2008US7321206 LED driving apparatus
01/22/2008US7321205 Method and a controller to control power supply to a CCFL
01/22/2008US7321199 Display apparatus and control method thereof
01/22/2008US7320482 Semiconductor integrated circuit device
01/17/2008WO2008009025A2 Methods and apparatus for providing an extremely fast response in swithcing power converters
01/17/2008US20080012631 Bias current generation circuit and method thereof
01/17/2008US20080012629 Active driver for use in semiconductor device
01/17/2008US20080012628 A dual mode voltage supply circuit
01/17/2008US20080012627 System and method for low voltage booster circuits
01/17/2008US20080012546 DC-DC converter
01/17/2008US20080012545 Half bridge switching regulator and electronic device
01/17/2008US20080012544 Methods and apparatus for providing an extremely fast response in switching power converters
01/17/2008US20080012543 Voltage regulator
01/17/2008US20080012542 DC-DC converter with over-voltage protection
01/17/2008US20080012541 Voltage generator and power supply circuit
01/17/2008US20080012540 Reverse current preventing circuit and method
01/17/2008US20080012539 Amplifier employing interleaved signals for PWM ripple suppression
01/17/2008US20080012510 Backlight module and digital programmable control circuit thereof
01/17/2008DE102007018302A1 Verfahren und Vorrichtung zur Verlängerung der Batterielebensdauer durch adaptive Steuerung von Reglern Method and apparatus for extending the battery life by adaptive control of regulators
01/17/2008DE10190481B4 Konstantspannungsquelle, Konstantspannungsquellen-Schaltungsplatte und Verfahren zum Zuführen einer vorbestimmten Spannung Constant voltage source, constant voltage source circuit board and method for supplying a predetermined voltage
01/16/2008EP1879092A1 Method for regulating bus voltage and preswitching device
01/16/2008EP1879091A1 Voltage sag generator device
01/16/2008EP1877885A2 Power factor correction apparatus and method of producing a power factor correction capacitance for a specified load
01/16/2008EP1711875A4 Bootstrap capacitor refresh circuit
01/16/2008CN201008126Y High-power intelligent voltage regulating device
01/16/2008CN201007805Y Digital type adjustable constant-current constant voltage source
01/16/2008CN201007804Y Electric synchronization type high-power constant current source and device
01/16/2008CN101106334A Power converter for providing output power limit and depending on load voltage adjustment
01/16/2008CN101106278A A voltage powerless control method for transformer station
01/16/2008CN101105697A Solar energy generation system most power tracking method and device
01/16/2008CN101105696A Voltage buffer circuit for linear potentiostat
01/16/2008CN101105695A Reference voltage generators for reducing and/or eliminating termination mismatch
01/16/2008CN100362443C Regulating board of static var compensator based on floating point DSP and FPGA
01/16/2008CN100362421C Light emitting apparatus generating white light by mixing of light of a plurality of oscillation wavelengths
01/15/2008US7319361 Internal voltage generation circuit of a semiconductor device
01/15/2008US7319360 Modulator
01/15/2008US7319359 High current charge pump for intelligent power switch drive
01/15/2008US7319358 Method and apparatus for generating an adaptive power supply voltage
01/15/2008US7319313 Photovoltaic DC-to-AC power converter and control method
01/15/2008US7319312 Digital power supply controller with voltage positioning
01/15/2008US7319311 Step down switching regulator with the substrate of the switching transistor selectively connected to either its drain or source
01/15/2008US7319310 Regulated power supply unit
01/15/2008US7319308 DC/DC converter
01/15/2008US7319298 Digitally controlled luminaire system
01/15/2008US7318292 Method and device for attenuating the motion of hydraulic cylinders of mobile work machinery
01/15/2008CA2334418C Power supply for lamps
01/10/2008WO2008005442A2 Power converter with segmented power module
01/10/2008WO2008003629A1 Electronic system for a field device that is fed by an external electric energy supply
01/10/2008WO2007123884A3 Single stage integrated boost inverter motor drive circuit
01/10/2008WO2006099161A3 A mosfet temperature compensation current source
01/10/2008WO2005041393A3 Method and system for power factor correction
01/10/2008US20080007325 Current source circuit
01/10/2008US20080007323 Systems and methods forminimizing static leakage of an integrated circuit
01/10/2008US20080007322 Power supply apparatus
01/10/2008US20080007321 Control integrated circuit for a charge pump
01/10/2008US20080007320 Control circuit for automatically generating latch signal to control led device according to input data signal and clock signal
01/10/2008US20080007244 Electronic Circuits and Methods for Starting Up a Bandgap Reference Circuit
01/10/2008US20080007241 Load compensated switching regulator
01/10/2008US20080007240 Method and apparatus to control output power from a switching power supply
01/10/2008US20080007239 Switching regulator
01/10/2008US20080007238 Switching regulator
01/10/2008US20080007237 Switching power supply, electronic apparatus, and method of controlling switching power supply circuit
01/10/2008US20080007236 Power converter with segmented power module
01/10/2008US20080007235 Switching power supply circuit
01/10/2008US20080007234 Voltage regulator
01/10/2008US20080007233 Switching power supply circuit
01/10/2008US20080007232 DC-DC converting method and apparatus
01/10/2008US20080007231 Low drop-out voltage regulator
01/10/2008US20080007230 Corrective device protection
01/10/2008US20080007188 Starting circuit for electric discharge lamp
01/10/2008CA2656329A1 Field device electronics fed by an external elctrical energy supply
01/09/2008EP1875591A1 Multi-phase voltage regulator
01/09/2008EP1522005B8 Circuit arrangement for stabilizing a supply voltage and method for operating said circuit arrangement
01/09/2008CN201004436Y A general switch for onboard electromagnetic power
01/09/2008CN201004192Y Voltage stabilizer for AC to DC
01/09/2008CN101102095A Offset voltage correction circuit and class d amplifier
01/09/2008CN101102079A Power factor correction circuit and method therefor
01/09/2008CN101101491A Power supply circuit
01/09/2008CN101101490A Temperature compensation device
01/09/2008CN101101489A Adjustable current source device using loaded suspension control circuit
01/09/2008CN101101488A Adjustable current source device using loaded suspension control circuit
01/09/2008CN100361375C Inrush current prevention circuit for dc-dc converter
01/09/2008CN100361364C Zero cross controller of reactive compensator
01/08/2008US7317627 Semiconductor integrated circuit with voltage generation circuit, liquid crystal display controller and mobile electric equipment
01/08/2008US7317625 Parallel current mode control using a direct duty cycle algorithm with low computational requirements to perform power factor correction
01/08/2008US7317306 Nonlinear adaptive voltage positioning for DC-DC converters
01/08/2008US7317305 Method and apparatus for multi-phase DC-DC converters using coupled inductors in discontinuous conduction mode
01/08/2008US7317302 Converter with feedback voltage referenced to output voltage
01/08/2008US7317301 Auxiliary power supply
01/08/2008US7317289 Method and apparatus for controlling driving current of illumination source in a display system