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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12/06/2012 | US20120306466 Step-up dc-dc converter |
12/06/2012 | US20120306465 Power supply device, control circuit, electronic device and control method for power supply |
12/06/2012 | US20120306464 Circuit Arrangement with an Adjustable Transistor Component |
12/06/2012 | US20120306463 Resonant-recovery power-reduction technique for boost converters |
12/06/2012 | US20120306462 Electricity Generation Device and Permanent-Magnet Electric Generator |
12/06/2012 | US20120306461 Power supply device, control integrated circuit thereof, and method of controlling power supply device |
12/06/2012 | US20120306460 Resistance Simulation and Common Mode Rejection for Digital Source-Measure Units |
12/06/2012 | US20120306459 Power Factor Correction Circuit, Control circuit Therefor and Method for Driving Load Circuit through Power Factor Correction |
12/06/2012 | US20120306407 Primary-Side Control Of A Switching Power Converter With Feed Forward Delay Compensation |
12/06/2012 | DE102012208416A1 Stromversorgungseinrichtung in einer elektronischen Anlage sowie deren Stromversorgungsverfahren und elektronische Anlage A power supply device in an electronic system and its power supply method and electronic equipment |
12/06/2012 | DE102010045389B4 Spannungsversorgungsanordnung und Verfahren zur Spannungsversorgung einer elektrischen Last Power Apparatus and method for supplying power to an electrical load |
12/06/2012 | DE102005002360B4 Tiefsetzer, Verfahren zur Ansteuerung und Verwendung des Tiefsetzers Down converter, procedures for control and use of the buck converter |
12/06/2012 | DE102004041920B4 Spannungsversorgungsschaltung und Verfahren zur Inbetriebnahme einer Schaltungsanordnung Power supply circuit and method for starting a circuit arrangement |
12/05/2012 | EP2530818A1 Power conversion apparatus, grid connection apparatus, and grid connection system |
12/05/2012 | EP2530803A1 Substation automatic control system |
12/05/2012 | CN202583931U Power output circuit of endoscope |
12/05/2012 | CN202583930U Circuit capable of dynamically adjusting working current of power device |
12/05/2012 | CN202583929U Analog quantity field energy-saving controller |
12/05/2012 | CN202583928U Direct-current high voltage generating circuit for direct-current high voltage tester |
12/05/2012 | CN202583927U Single-phase thyristor voltage and power regulator |
12/05/2012 | CN202583926U Voltage and current output system of single phase alternating current power source for intelligent electric energy meter calibrating device for power grid |
12/05/2012 | CN202583925U Current output transformer system adopting single-phase AC power source for intelligent electric energy meter detection device of power grid |
12/05/2012 | CN102812626A DC TO DC converter having switch control and method of operation |
12/05/2012 | CN102812409A Power supply improvements |
12/05/2012 | CN102811000A Photovoltaic power generating system, maximal power point tracking method thereof and tracking device |
12/05/2012 | CN102809980A Maximum power point tracking method based on efficient adaptive perturbation and observation |
12/05/2012 | CN102809979A Third-order compensation band-gap reference voltage source |
12/05/2012 | CN102023665B 源发生器及其控制方法 Source generator and control method |
12/05/2012 | CN101552608B System and method for adjusting the common mode voltage of the preamplifier in ADC system. |
12/05/2012 | CN101394131B Switching regulator control circuit, switching regulator and switching regulator control method |
12/05/2012 | CN101375482B 电源系统 Power Systems |
12/04/2012 | US8325503 High voltage power supply |
12/04/2012 | US8325496 Switching power supply circuit and surge absorbing circuit |
12/04/2012 | US8324974 Regulating power consumption of digital circuitry using a multi-layer ring oscillator |
12/04/2012 | US8324960 Charge pump doubler |
12/04/2012 | US8324959 Bias circuit and wireless communication device including the bias circuit |
12/04/2012 | US8324880 Power converting system with function of reducing dead-time |
12/04/2012 | US8324879 Power inverter control device for switching point determination |
12/04/2012 | US8324878 Voltage regulator with gate resistor for improved efficiency |
12/04/2012 | US8324877 Voltage down converter |
12/04/2012 | US8324876 Unconditional frequency compensation technique on-chip low dropout voltage regulator |
12/04/2012 | US8324875 Multiphase DC/DC converter with output phases deviated from or aligned with each other and driven with fixed on time |
12/04/2012 | US8324874 System and method for controlling synchronous switch for a synchronous converter |
12/04/2012 | US8324873 Power supply apparatus and power supply method |
12/04/2012 | US8324872 Voltage regulator with coupled inductors having high coefficient of coupling |
12/04/2012 | US8324871 Integrated multi-inductor magnetic member and multi-loop power factor correction circuit having same |
12/04/2012 | US8324870 Adaptive current limit for power factor correction |
12/04/2012 | US8324840 Apparatus, method and system for providing AC line power to lighting devices |
12/04/2012 | US8324839 Lamp control system |
12/04/2012 | US8324837 Parallel light-emitting circuit of parallel LED light-emitting device and circuit board thereof |
12/04/2012 | US8324835 Modular LED lamp and manufacturing methods |
12/04/2012 | US8324831 Light emitting diode illuminating system and controlling method thereof |
12/04/2012 | US8324830 Color management for field-sequential LCD display |
12/04/2012 | US8324828 High-pressure discharge lamp lighting device, high pressure discharge lamp apparatus using this, projector using the high-pressure discharge lamp apparatus, and high-pressure discharge lamp lighting method |
12/04/2012 | US8324826 Method and device for composing a lighting atmosphere from an abstract description and lighting atmosphere composition system |
12/04/2012 | US8324825 Method and circuit for driving a low voltage light emitting diode |
12/04/2012 | US8324821 Two-wired LED light adjusting system |
12/04/2012 | US8324812 Protecting ballast circuitry against miswiring |
12/04/2012 | US8324538 Systems and methods for limiting input power and RMS input current drawn from a DC power source |
11/29/2012 | WO2012160864A1 Current collector box |
11/29/2012 | WO2012160646A1 Var compensator, and system and method therefor |
11/29/2012 | WO2012128882A3 Power flow control using distributed saturable reactors |
11/29/2012 | US20120299571 System and method for providing stable control for power systems |
11/29/2012 | US20120299570 Fixed dead time pfc controller |
11/29/2012 | US20120299569 Constant On-Time Switching Regulator Implementing Light Load Control |
11/29/2012 | US20120299568 Step-up/down dc-dc converter and switching control circuit |
11/29/2012 | US20120299567 Power Conversion System and Power Control Method for Reducing Cross Regulation Effect |
11/29/2012 | US20120299566 Power supply |
11/29/2012 | US20120299565 Constant On-Time Switching Regulator Implementing Dual Control Loops |
11/29/2012 | US20120299564 Low drop-out voltage regulator with dynamic voltage control |
11/29/2012 | US20120299563 Power converter and control method using the same |
11/29/2012 | US20120299562 Switching regulator and electronic device incorporating same |
11/29/2012 | US20120299561 Quasi-resonant controlling and driving circuit and method for a flyback converter |
11/29/2012 | US20120299553 Bidirectional hysteretic power converter |
11/29/2012 | US20120299522 Two-quadrant chopper |
11/29/2012 | US20120299477 Power supply device and lamp and vehicle including same |
11/29/2012 | US20120299305 Method and System for Operating and Controlling a Wind Turbine to Prevent Excitation of Subsynchronous Oscillations within the Wind Turbine |
11/29/2012 | US20120298166 Solar Panel with Energy Efficient Bypass Diode System |
11/28/2012 | EP2528186A1 Management device for charging circuit and wireless terminal |
11/28/2012 | EP2527949A1 Mppt controller, solar battery control device, solar power generation system, mppt control program, and control method for mppt controller |
11/28/2012 | EP2527948A2 Maximum power point tracking method |
11/28/2012 | EP2527947A2 Systems and methods for testable current limiting with hiccup reset |
11/28/2012 | EP2527946A1 Current limitation for LDO |
11/28/2012 | CN202565237U Voltage comparator provided with signal locking function |
11/28/2012 | CN202563369U Solar photovoltaic assembly |
11/28/2012 | CN202563368U Four-hole dust-removal constant-power control device of electric furnace |
11/28/2012 | CN202563367U Equipment for generating adjustable bandgap reference voltage and integrated circuit |
11/28/2012 | CN202563366U Current regulator for thermal dissipation measurement probe on trunk liquid flow |
11/28/2012 | CN202563365U Voltage-current switch circuit |
11/28/2012 | CN202562988U Synchronous phase control simulation device |
11/28/2012 | CN102804096A Solar array regulator based on step-up and down conversion and solar power system comprising the same |
11/28/2012 | CN102799208A Photovoltaic power generation maximum power point tracking fuzzy proportion integration differentiation (PID) control method |
11/28/2012 | CN102799207A Trimming circuit and semiconductor device |
11/28/2012 | CN102096434B High-slew-rate error amplifier-based high-accuracy and high-speed low dropout (LDO) regulator circuit |
11/28/2012 | CN101605287B Integrated circuit used for providing microphone interface |
11/28/2012 | CN101421684B Power converting device, and control method therefor |
11/27/2012 | US8319548 Integrated circuit having low power mode voltage regulator |
11/27/2012 | US8319547 Self biased low noise high PSRR constant GM for VCO |
11/27/2012 | US8319546 Method and apparatus for maintaining circuit stability |
11/27/2012 | US8319545 Charge pump with reduced current variation |