| 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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| 08/05/2009 | CN201285522Y Constant current source circuit for electronic gun filament |
| 08/05/2009 | CN201285521Y Digital boost converter based on complicated programmable logic device |
| 08/05/2009 | CN101501799A Signal generation unit and method to generate a data signal in a control unit of a power system device |
| 08/05/2009 | CN101501603A Power converters having balanced power rail currents |
| 08/05/2009 | CN101501602A Solar photovoltaic power generation system, vehicle, solar photovoltaic power generation system control method, and computer readable recording medium having recorded therein program for causing compu |
| 08/05/2009 | CN101501601A System and method for driving a power field-effect transistor (FET) |
| 08/05/2009 | CN101500358A Output current compensation circuit of LED driving circuit |
| 08/05/2009 | CN101499749A Slow starting control circuit for DC motor |
| 08/05/2009 | CN101499724A Controller applied for resonance type DC/DC converter |
| 08/05/2009 | CN101499722A Switching type voltage regulator and controlling circuit and method thereof |
| 08/05/2009 | CN101499666A Photovoltaic grid connection power generation system based on DC converter and working method thereof |
| 08/05/2009 | CN101499664A Low voltage traversing control method for wind power generation set grid-connection current transformer |
| 08/05/2009 | CN101499662A Environment friendly reactive power regulator |
| 08/05/2009 | CN101499656A Power supply circuit having resistance element changing its resistance value |
| 08/05/2009 | CN101498948A Regulating circuit and its correlated regulating method |
| 08/05/2009 | CN101498947A Voltage-stabilizing circuit and charging micro-control integrated circuit embedded with the same |
| 08/05/2009 | CN101498946A Voltage-stabilizing circuit and method for chips |
| 08/05/2009 | CN101498945A Control circuit for parallel and series connection of polysilicon reduction power supply silicon rod |
| 08/05/2009 | CN100525046C Power supply controller and method therefor |
| 08/05/2009 | CN100525043C Protection circuit for a power supply unit, and power supply unit with a respective protection circuit |
| 08/05/2009 | CN100525039C Multi-channel power converter with electricity-saving switching frequency modulation circuit |
| 08/05/2009 | CN100524144C Voltage-stabilizing silicon chain device |
| 08/05/2009 | CN100524143C Common-mode voltage generator for a battery-supplied handset apparatus |
| 08/04/2009 | US7570108 Apparatus for regulating voltage |
| 08/04/2009 | US7570107 Band-gap reference voltage generator |
| 08/04/2009 | US7570106 Substrate voltage generating circuit with improved level shift circuit |
| 08/04/2009 | US7570105 Variable current charge pump with modular switch circuit |
| 08/04/2009 | US7570104 Charge pump circuit control system |
| 08/04/2009 | US7570039 Apparatus and method for control supply output voltage techniques to track battery voltage |
| 08/04/2009 | US7570038 Control circuit to reduce reverse current of synchronous rectifier |
| 08/04/2009 | US7570037 Hybrid control methods for digital pulse width modulator (DPWM) |
| 08/04/2009 | US7570036 Multi-threshold multi-gain active transient response circuit and method for digital multiphase pulse width modulated regulators |
| 08/04/2009 | US7570035 Voltage regulator with a hybrid control loop |
| 08/04/2009 | US7570034 Step-up/down DC-DC converter |
| 08/04/2009 | US7570033 Apparatus and method for PWM buck-or-boost converter with smooth transition between modes |
| 08/04/2009 | US7570032 Regulator with integrator in feedback signal |
| 08/04/2009 | US7570031 Method and apparatus for preventing multiple attempted firings of a semiconductor switch in a load control device |
| 08/04/2009 | US7570030 Boost converter circuit having selectable modes |
| 08/04/2009 | US7570029 Active power conditioner |
| 08/04/2009 | US7570010 Solar panel with pulse charger |
| 08/04/2009 | US7569998 Striking and open lamp regulation for CCFL controller |
| 07/30/2009 | WO2008109715A3 Method and firmware for controlling voltage and current in a fluorescent lamp array |
| 07/30/2009 | US20090189686 Semiconductor integrated circuit and power control method |
| 07/30/2009 | US20090189685 Leakage Control |
| 07/30/2009 | US20090189682 Method and apparatus for mode selection for high voltage integrated circuits |
| 07/30/2009 | US20090189681 Self-oscillating regulated low-ripple charge pump and method |
| 07/30/2009 | US20090189647 Bias current generator for multiplie supply voltage circuit |
| 07/30/2009 | US20090189591 Power Supply Insensitive PTAT Voltage Generator |
| 07/30/2009 | US20090189587 High accuracy average output current control scheme for power current converter in critical DCM |
| 07/30/2009 | US20090189586 Switched-capacitor soft-start ramp circuits |
| 07/30/2009 | US20090189585 Pulse width modulation controller and the controlling method thereof |
| 07/30/2009 | US20090189584 Voltage regulator |
| 07/30/2009 | US20090189583 Switching power supply with switching circuits |
| 07/30/2009 | US20090189582 Switching power supply device and electrical apparatus using the same |
| 07/30/2009 | US20090189581 Apparatus and method for recycling the energy from load capacitance |
| 07/30/2009 | US20090189580 Drive control apparatus for controlling drive of inductive load and drive control method for controlling the same |
| 07/30/2009 | US20090189578 Low ripple dc to dc power converter |
| 07/30/2009 | US20090189577 Linear regulator and voltage regulation method |
| 07/30/2009 | US20090189576 Voltage Regulator with Communication Ring Scheme |
| 07/30/2009 | US20090189574 Simplified maximum power point control utilizing the pv array voltage at the maximum power point |
| 07/30/2009 | US20090189573 Method for regulating a voltage and circuit therefor |
| 07/30/2009 | US20090189447 Multi-channel switching regulator |
| 07/29/2009 | EP2082306A1 Voltage control for electric power systems |
| 07/29/2009 | CN201281825Y Isolation type contactless AC voltage stabilizer |
| 07/29/2009 | CN101495935A Controlling apparatus for linear compressor |
| 07/29/2009 | CN101495934A Resonant discontinuous forward power converter |
| 07/29/2009 | CN101493713A Hot working performance test power control system of refrigerated container |
| 07/29/2009 | CN101493712A Automobile light automatic regulation system |
| 07/29/2009 | CN101493711A Stabilized power supply delaying charging type stepless high position tracking system |
| 07/29/2009 | CN101493710A Voltage stabilizer |
| 07/29/2009 | CN101493709A Boost control chip |
| 07/29/2009 | CN100521024C Method and system for supplying power to capacitor loads |
| 07/29/2009 | CN100520960C Internal voltage convertor conception for controlling power-on slope of internal supply voltage |
| 07/29/2009 | CN100520666C DC voltage-stablized source apparatus |
| 07/29/2009 | CN100520665C Low-voltage linear voltage adjuster |
| 07/29/2009 | CN100520664C Voltage regulator |
| 07/29/2009 | CN100520663C Power controller |
| 07/29/2009 | CN100520646C Portable photographing apparatus and power switching control method |
| 07/28/2009 | US7567119 Current limiting protection circuit |
| 07/28/2009 | US7567118 Booster circuit |
| 07/28/2009 | US7567117 Data output clock signal generating apparatus and semiconductor integrated circuit with the same |
| 07/28/2009 | US7567116 Voltage converting circuit and battery device |
| 07/28/2009 | US7567070 Method and apparatus to limit output power in a switching power supply |
| 07/28/2009 | US7567069 Step-up power supply device |
| 07/28/2009 | US7567067 Power supply, display device, and light source driving apparatus |
| 07/28/2009 | US7567066 Integrated switch with internally adjusted conduction time |
| 07/28/2009 | US7567065 Switching regulator and method for changing output voltages thereof |
| 07/28/2009 | US7567064 Systems of parallel operating power electronic converters |
| 07/28/2009 | US7567041 Discharge lamp lighting apparatus and projector |
| 07/28/2009 | US7567040 High efficiency driver for color light emitting diodes (LED) |
| 07/28/2009 | US7566828 Power source device and charge controlling method to be used in same |
| 07/28/2009 | CA2340467C System and method providing output signal control for a power supply |
| 07/23/2009 | WO2009090889A1 Three-phase four-cable power distribution system and method for installing balancer in the system |
| 07/23/2009 | WO2009090826A1 Power supply circuit and testing apparatus |
| 07/23/2009 | US20090187773 Mcu with power saving mode |
| 07/23/2009 | US20090184757 Semiconductor device having input circuit minimizing influence of variations in input signals |
| 07/23/2009 | US20090184756 Semiconductor Power Device with Bias Circuit |
| 07/23/2009 | US20090184755 Current control apparatus applied to transistor |
| 07/23/2009 | US20090184753 Charge pump circuit |
| 07/23/2009 | US20090184752 Bias circuit |