| 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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| 01/13/2009 | US7477045 Multi-phase buck converter |
| 01/13/2009 | US7477044 Voltage regulator output stage with low voltage MOS devices |
| 01/13/2009 | US7477043 Voltage regulator output stage with low voltage MOS devices |
| 01/13/2009 | US7477025 Power control circuit for adjusting light |
| 01/13/2009 | US7476823 Current pause device for an electric power circuit interrupter |
| 01/08/2009 | WO2009005697A1 Negative n-epi biasing sensing and high side gate driver output spurious turn-on prevention due to n-epi p-sub diode conduction during n-epi negative transient voltage |
| 01/08/2009 | WO2008005442A3 Power converter with segmented power module |
| 01/08/2009 | US20090009237 Boosting circuit and boosting method |
| 01/08/2009 | US20090009236 Step-down circuit with stabilized output voltage |
| 01/08/2009 | US20090009148 Steady state frequency control of variable frequency switching regulators |
| 01/08/2009 | US20090009147 Low drop-out voltage regulator with high-performance linear and load regulation |
| 01/08/2009 | US20090009137 Apparatus and method to integrate the power management IC with the system IC |
| 01/08/2009 | US20090009104 Step-Up/Down Regulator Circuit and Liquid Crystal Display Device Incorporating It |
| 01/08/2009 | US20090009093 Switchable induction light |
| 01/08/2009 | US20090008937 DC Voltage Regulator |
| 01/08/2009 | DE102007031528A1 Method for switching controller with small voltage drop, involves determining actual active period of current requirement of electronic device |
| 01/07/2009 | EP1842120B1 Device for smoothing a current supplied to a consumer |
| 01/07/2009 | CN201178510Y Optical power control APC circuit for voltage boosting driving light transmitter |
| 01/07/2009 | CN201178383Y Energy saving consumption lowering electric power of electric screwdriver |
| 01/07/2009 | CN201178381Y Improvement of DC-DC circuit |
| 01/07/2009 | CN201177772Y 高效智能调压器 Intelligent and efficient regulator |
| 01/07/2009 | CN201177768Y Thermostatic control apparatus for electric water heater |
| 01/07/2009 | CN101341453A Constant voltage circuit and method of controlling output voltage of constant voltage circuit |
| 01/07/2009 | CN101341452A Constant voltage circuit |
| 01/07/2009 | CN101340183A Variable-frequency oscillator |
| 01/07/2009 | CN101340152A Digital direct tuning DC voltage stabilizing and regulating power source |
| 01/07/2009 | CN101339444A Voltage regulator and its manufacture method |
| 01/07/2009 | CN101339443A Broad output current scope low pressure difference linear manostat |
| 01/07/2009 | CN101339414A Power management system and method |
| 01/07/2009 | CN100449921C Voltage detection circuit, power supply unit and semiconductor device |
| 01/07/2009 | CN100449920C Constant-voltage power supply unit |
| 01/07/2009 | CN100449918C Output voltage adjustable dc-dc conversion circuit |
| 01/07/2009 | CN100449593C Semiconductor device for driving current load device and displaying apparatus |
| 01/07/2009 | CN100449448C Installation designed for the operation of a building door and method for controlling the power supply of such an installation |
| 01/07/2009 | CN100449447C Single current bias circuit of current source |
| 01/07/2009 | CN100449376C Sampling for color control feedback using an optical cable |
| 01/06/2009 | US7474544 Initial voltage establishing circuit for a switching voltage converter |
| 01/06/2009 | US7474146 Electronic device with standby function, standby power supply system and method thereof |
| 01/06/2009 | US7474145 Constant current circuit |
| 01/06/2009 | US7474144 Ratioed feedback body voltage bias generator |
| 01/06/2009 | US7474143 Voltage generator circuit and method for controlling thereof |
| 01/06/2009 | US7474142 Internal voltage generating circuit |
| 01/06/2009 | US7474141 Mode transition control method and circuit for a charge pump |
| 01/06/2009 | US7474140 Apparatus for generating elevated voltage |
| 01/06/2009 | US7474086 Frequency-on-the-fly control circuit and method for a DC/DC PWM converter |
| 01/06/2009 | US7474085 Power supply switch circuit with current leakage protection |
| 01/06/2009 | US7474084 Circuit arrangement and method for driving a gate of a transistor, in particular a MOSFET |
| 01/06/2009 | US7474083 Semiconductor device |
| 01/06/2009 | US7474082 Voltage converting apparatus with auto-adjusting boost multiple |
| 01/06/2009 | US7474081 AC/DC converter and method of modulation thereof |
| 01/06/2009 | US7474064 Lamp driving circuit for a discharge lamp and a control method thereof |
| 01/01/2009 | US20090003113 Block-by-Block Leakage Control and Interface |
| 01/01/2009 | US20090002064 Charge pump circuit |
| 01/01/2009 | US20090002062 Method for sensing integrated circuit temperature including adjustable gain and offset |
| 01/01/2009 | US20090001960 Systems and methods for ASIC power consumption reduction |
| 01/01/2009 | US20090001955 DC-DC Converter |
| 01/01/2009 | US20090001954 Switching power supply |
| 01/01/2009 | US20090001953 Low dropout linear voltage regulator |
| 01/01/2009 | US20090001952 Apparatus and method for improving a transient response of a power converter |
| 01/01/2009 | US20090001951 Current direction detection circuit and switching regulator having the same |
| 01/01/2009 | US20090001950 Flash memory and related voltage regulator |
| 01/01/2009 | US20090001949 Switching regulator and method of converting dc voltage |
| 01/01/2009 | US20090001948 Programmable Power Limiting for Power Transistor System |
| 01/01/2009 | US20090001947 Low power optimized voltage regulator |
| 01/01/2009 | US20090001946 System and method to calculate initial duty cycle |
| 01/01/2009 | US20090001945 Circuit and method for phase shedding with reverse coupled inductor |
| 01/01/2009 | US20090001944 Soft start circuit and power supply including soft start circuit |
| 01/01/2009 | US20090001943 Current mode boost converter using slope compensation |
| 01/01/2009 | US20090001942 Reactive power compensator and control device therefor |
| 01/01/2009 | US20090001941 Inductive Powering Surface for Powering Portable Devices |
| 01/01/2009 | US20090001813 Configurable input high power dc-dc converter |
| 12/31/2008 | WO2009003063A2 A current mode boost converter using slope compensation |
| 12/31/2008 | WO2009002341A1 Instrument power controller and method for adaptively providing an output voltage and an output current that together maintain a substantially constant electrical output power |
| 12/31/2008 | EP2009759A1 Power supply device and power supply device control method |
| 12/31/2008 | EP2009538A1 Electronic module and assembly for transmitting signals with such a module |
| 12/31/2008 | EP2008163A2 Low-dropout voltage regulator with a voltage slew rate efficient transient response boost circuit |
| 12/31/2008 | EP2007925A1 An electrical device for impeding corrosion |
| 12/31/2008 | EP1872187B1 Constant-voltage power supply circuit with fold-back-type overcurrent protection circuit |
| 12/31/2008 | EP1700178B1 Voltage regulation system |
| 12/31/2008 | CN201174799Y Electronic ballast for AC large power LED illuminating energy saving lamp |
| 12/31/2008 | CN201174664Y Controllable rectifying circuit of inverter of digital electricity generator |
| 12/31/2008 | CN201174606Y Charging apparatus of solar and wind energy |
| 12/31/2008 | CN201174600Y AC integrated power source apparatus of mobile communication base station |
| 12/31/2008 | CN201174595Y Selection type reactive compensating controller having diagnosis function |
| 12/31/2008 | CN201174564Y Direct-current ice melting apparatus |
| 12/31/2008 | CN201174090Y Electricity supplying adapter for notebook type computer |
| 12/31/2008 | CN201174058Y Standby electric power of ultramicro power consumption |
| 12/31/2008 | CN201174057Y Compensating AC voltage regulator |
| 12/31/2008 | CN101336399A Two level current limiting power supply system |
| 12/31/2008 | CN101336027A Light-adjusting voltage-reducing type LED drive device |
| 12/31/2008 | CN101335517A Amplifier |
| 12/31/2008 | CN101334680A Public voltage generation circuit and LCD device |
| 12/31/2008 | CN100448144C Power supply circuit |
| 12/31/2008 | CN100447699C Low drop-out voltage regulator |
| 12/31/2008 | CN100447698C Method of forming low quescent current voltage regulator and structure thereof |
| 12/31/2008 | CN100447574C Open-phase detecting method of three-phase transformer |
| 12/31/2008 | CA2691803A1 Instrument power controller and method for adaptively providing an output voltage and an output current that together maintain a substantially constant electrical output power |
| 12/30/2008 | US7471287 Light source driving circuit for driving light emitting diode components and driving method thereof |
| 12/30/2008 | US7471139 Voltage buffer for capacitive loads |
| 12/30/2008 | US7471138 DC output voltage circuit with substantially flat PSRR |