| 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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| 10/26/2010 | US7821244 Apparatus and method for charge storage and recovery for variable output voltage regulators  | 
| 10/26/2010 | US7821243 DC/DC converter  | 
| 10/26/2010 | US7821242 Constant voltage circuit and method of controlling ouput voltage of constant voltage circuit  | 
| 10/26/2010 | US7821241 Integrated switch with internally adjusted conduction time  | 
| 10/26/2010 | US7821240 Voltage regulator with pass transistors carrying different ratios of the total load current and method of operation therefor  | 
| 10/26/2010 | US7821239 Switching power supply  | 
| 10/26/2010 | US7821238 Feedback loop compensation for buck/boost switching converter  | 
| 10/26/2010 | US7821237 Power factor correction (PFC) controller and method using a finite state machine to adjust the duty cycle of a PWM control signal  | 
| 10/26/2010 | US7821236 Control circuit for detecting a reverse current in a DC-DC converter  | 
| 10/21/2010 | WO2010120315A1 Methods and apparatus for adaptive operation of solar power systems  | 
| 10/21/2010 | WO2010120066A2 Energy supply system for current source arrangement and current feedback circuit device  | 
| 10/21/2010 | WO2010086031A3 Power system frequency inertia for wind turbines  | 
| 10/21/2010 | US20100265242 Power circuit and display device using same  | 
| 10/21/2010 | US20100264983 Systems and Methods for Power Dissipation Control in a Semiconductor Device  | 
| 10/21/2010 | US20100264982 Electronic circuit and method of masking current requirements of an electronic circuit  | 
| 10/21/2010 | US20100264896 Voltage regulator circuit  | 
| 10/21/2010 | US20100264895 Power-supply controller  | 
| 10/21/2010 | US20100264894 Switch driving circuit  | 
| 10/21/2010 | US20100264893 Power supply apparatus and power supply system with multiple power supply apparatuses  | 
| 10/21/2010 | US20100264892 Power supply control device and power supply control method  | 
| 10/21/2010 | US20100264891 Control Method for Voltage Converter and Related Voltage Converter  | 
| 10/21/2010 | US20100264890 Voltage and Current Regulators with Switched Output Capacitors For Multiple Regulation States  | 
| 10/21/2010 | US20100264889 Power supply circuit  | 
| 10/21/2010 | US20100264888 Dc/dc converter and power supply system  | 
| 10/21/2010 | US20100264887 Booster device  | 
| 10/21/2010 | US20100264869 Maximum Power Point Tracking Charge Controller with Coupled Inductor Multi-phase Converter  | 
| 10/21/2010 | US20100264847 Voltage converter, backlight module control system and control method thereof  | 
| 10/21/2010 | US20100264844 Power systems with platform-based controllers  | 
| 10/21/2010 | DE102010000498A1 Frequenzkompensationsmethode zum Stabilisieren eines Reglers unter Verwendung eines externen Transistors in einer Hochspannungsdomäne Frequency compensation method for stabilizing a controller using an external transistor in a high voltage domain  | 
| 10/20/2010 | EP2241000A1 Hybrid on-chip regulator for limited output high voltage  | 
| 10/20/2010 | CN201611451U 智能数控数显直流稳压电源 Intelligent CNC Digital DC Power Supply  | 
| 10/20/2010 | CN101866193A Linear voltage-stabilizing circuit and control chip thereof  | 
| 10/20/2010 | CN101866192A Device for fast stabilizing alternating current in power frequency period  | 
| 10/20/2010 | CN101866191A Complete calibration method of AC stabilized-voltage power supply  | 
| 10/19/2010 | US7816977 Core voltage generator  | 
| 10/19/2010 | US7816976 Power supply circuit using insulated-gate field-effect transistors  | 
| 10/19/2010 | US7816975 Circuit and method for bias voltage generation  | 
| 10/19/2010 | US7816902 Integrated circuit including a controller for regulating a power supply  | 
| 10/19/2010 | US7816901 PWM modulator for scalable converters  | 
| 10/19/2010 | US7816900 Correction circuit for improved load transient response  | 
| 10/19/2010 | US7816899 Power conversion device  | 
| 10/19/2010 | US7816898 Switching regulator  | 
| 10/19/2010 | US7816897 Current limiting circuit  | 
| 10/19/2010 | US7816896 Circuits and methods for controlling a converter  | 
| 10/19/2010 | US7816895 Power supplying device  | 
| 10/19/2010 | US7816894 Method and apparatus for regulating voltage  | 
| 10/14/2010 | WO2010117082A1 Power device and power control system  | 
| 10/14/2010 | WO2010116806A1 Power conversion device  | 
| 10/14/2010 | WO2010095159A3 Method for controlling an electric power generation system based on energy sources, in particular renewable energy sources, and related controller device  | 
| 10/14/2010 | WO2009151764A8 Carrier solvent for fingerprint formulations  | 
| 10/14/2010 | US20100259953 Method and apparatus for limiting maximum output power of a power converter  | 
| 10/14/2010 | US20100259317 High-output-impedance current mirror  | 
| 10/14/2010 | US20100259316 Semiconductor integrated circuit device  | 
| 10/14/2010 | US20100259315 Circuit and Methods for Temperature Insensitive Current Reference  | 
| 10/14/2010 | US20100259304 Power detecting device, power supply device using the same and reference voltage generator  | 
| 10/14/2010 | US20100259239 Regulator control circuits, switching regulators, systems, and methods for operating switching regulators  | 
| 10/14/2010 | US20100259238 Direct Current Converter  | 
| 10/14/2010 | US20100259237 Compensation Circuit  | 
| 10/14/2010 | US20100259236 Voltage regulator controller frequency varied by load current (61065-R)  | 
| 10/14/2010 | US20100259235 Voltage Regulator with Quasi Floating Gate Pass Element  | 
| 10/14/2010 | US20100259234 Power FET gate charge recovery  | 
| 10/14/2010 | US20100259233 Direct Current Converter  | 
| 10/14/2010 | US20100259232 System and method for driving a power supply device in an initial activation stage  | 
| 10/14/2010 | US20100259231 Extremely high-speed switchmode DC-DC converters  | 
| 10/14/2010 | US20100259230 Power factor correction device with adjustable capacitance  | 
| 10/14/2010 | US20100259229 Battery charging apparatus  | 
| 10/14/2010 | US20100259227 Method and system for controlling current flow through a power distribution circuit  | 
| 10/14/2010 | DE102009002271A1 Schaltungsanordnung zum Betreiben eines Haushaltsgeräts und entsprechendes Verfahren Circuit arrangement for operating a household appliance and corresponding method  | 
| 10/13/2010 | CN201607655U 精密电压调整电路 Precision voltage regulator circuit  | 
| 10/13/2010 | CN1753291B Power factor correction circuit and output voltage control method thereof  | 
| 10/13/2010 | CN1510835B Power integrated circuit with switch adjuster and series adjuster  | 
| 10/13/2010 | CN101860190A Configuration method of component parameters of converter with power factor correction function  | 
| 10/13/2010 | CN101859158A Reference current circuit and generating method thereof  | 
| 10/13/2010 | CN101859157A Current compensation type alternating-current voltage stabilizer  | 
| 10/13/2010 | CN101859156A Bias voltage control device of electrooptic modulator and control method thereof  | 
| 10/13/2010 | CN101141117B Differential amplifier circuit, voltage regulator using the differential amplifier circuit, and method for controlling the differential amplifier circuit  | 
| 10/12/2010 | US7813752 Power control subsystem for powering a node over communication cabling  | 
| 10/12/2010 | US7812663 Bandgap voltage reference circuit  | 
| 10/12/2010 | US7812588 Output voltage adaptive voltage converting apparatus and method thereof  | 
| 10/12/2010 | US7812586 One cycle control PFC circuit with dynamic gain modulation  | 
| 10/12/2010 | US7812585 Advanced current-mode control for switched regulators  | 
| 10/12/2010 | US7812584 Method for regulating a voltage and circuit therefor  | 
| 10/12/2010 | US7812583 Management of regulator-induced switching noise for sampled systems  | 
| 10/12/2010 | US7812582 System and method of power distribution control of an integrated circuit  | 
| 10/12/2010 | US7812581 Pulse adding scheme for smooth phase dropping at light load conditions for multiphase voltage regulators  | 
| 10/12/2010 | US7812580 Power supply apparatus having switchable switching regulator and linear regulator  | 
| 10/12/2010 | US7812579 High-efficiency DC/DC voltage converter including capacitive switching pre-converter and up inductive switching post-regulator  | 
| 10/12/2010 | US7812578 DC-DC converter  | 
| 10/12/2010 | US7812577 Sepic fed buck converter  | 
| 10/12/2010 | US7812576 Power factor control systems and methods  | 
| 10/12/2010 | US7812575 Bidirectional DC-DC converter and power supply apparatus with the same  | 
| 10/12/2010 | US7812553 LED lighting device and method for controlling the same based on temperature changes  | 
| 10/12/2010 | US7812551 Lighting control method having a light output ramping function  | 
| 10/12/2010 | US7812548 Driver system and method with multi-function protection for cold-cathode fluorescent lamp and external-electrode fluorescent lamp  | 
| 10/07/2010 | WO2010114720A1 Method and circuit for low power voltage reference and bias current generator  | 
| 10/07/2010 | WO2010114183A1 Blood testing kit having suction type sampling equipment which collects a predetermined volume of blood  | 
| 10/07/2010 | US20100253422 Semiconductor device and apparatus including semiconductor device  | 
| 10/07/2010 | US20100253421 Electronic Device for Supplying DC Power  | 
| 10/07/2010 | US20100253420 Power Efficiency of a Line Driver  | 
| 10/07/2010 | US20100253403 Radiation-Hardened Charge Pump Topology  |