| 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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| 01/26/2011 | CN1936756B Method and apparatus to improve regulation of a power supply |
| 01/26/2011 | CN101959458A Method and apparatus to facilitate using visible-light images to determine a heart rate |
| 01/26/2011 | CN101958557A Peak power output tracking method and system for solar battery |
| 01/26/2011 | CN101957628A Self-adaption zero-frequency compensation circuit in low-voltage difference linear voltage regulator |
| 01/26/2011 | CN101957627A LDO constant voltage control circuit |
| 01/26/2011 | CN101957626A Constant current source circuit capable of improving precision of constant current source |
| 01/26/2011 | CN101957625A Low dropout linear voltage regulator for driving nF-stage load |
| 01/26/2011 | CN101552548B Power supply control system |
| 01/26/2011 | CN101479854B Solar photovoltaic power generation artificial-power generating method and solar photovoltaic power generation simulator power-supply apparatus |
| 01/26/2011 | CN101261525B Voltage regulator circuit and control method therefor |
| 01/26/2011 | CN101076766B Improved circuit for portable lighting equipment and portable chargeable electronic equipment |
| 01/25/2011 | USRE42063 Multi-phase converter with balanced currents |
| 01/25/2011 | US7876589 Semiconductor circuit device and data processing system |
| 01/25/2011 | US7876146 Method and apparatus for powering down analog integrated circuits |
| 01/25/2011 | US7876081 DC-DC converter with substantially constant on-time and constant switching frequency |
| 01/25/2011 | US7876080 Power converter with monotonic turn-on for pre-charged output capacitor |
| 01/25/2011 | US7876079 System and method for regulating a power supply |
| 01/25/2011 | US7876078 Switching power supply with near zero supply current in light-load operation |
| 01/25/2011 | US7876077 Control circuit and control method of current mode control type DC-DC converter |
| 01/25/2011 | US7876076 Circuit for preventing through current in DC-DC converter |
| 01/25/2011 | US7876075 Control circuit and method for a power converter |
| 01/25/2011 | US7876074 Amplifier employing interleaved signals for PWM ripple supression |
| 01/25/2011 | US7876073 Switching regulator with slope compensation and control method therefor |
| 01/25/2011 | US7876057 Image display apparatus |
| 01/20/2011 | WO2011007927A1 Central management computing system |
| 01/20/2011 | WO2011007198A1 Integrated circuit, communication unit and method for phase adjustment |
| 01/20/2011 | WO2011006979A1 Low-dropout regulator |
| 01/20/2011 | US20110013437 DC-DC Converter And Its Controlling Method |
| 01/20/2011 | US20110013431 Switching power conversion circuit and power sypply using same |
| 01/20/2011 | US20110012672 Body-bias voltage controller and method of controlling body-bias voltage |
| 01/20/2011 | US20110012578 Dc-dc converter controller having optimized load transient response |
| 01/20/2011 | US20110012577 Power converting system with function of reducing dead-time |
| 01/20/2011 | US20110012576 Power supply circuit and receiving apparatus |
| 01/20/2011 | US20110012575 Dc to dc switching power converter controller using spread spectrum pwm |
| 01/20/2011 | US20110012574 Interleaved/all-phase mode switched pwm system |
| 01/20/2011 | US20110012573 Power supply circuit |
| 01/20/2011 | US20110012572 Heat-exchange cooling device and power supply circuit driver used therefore |
| 01/20/2011 | US20110012571 Load driving apparatus |
| 01/20/2011 | US20110012570 Synchronous driver circuit and integrated circuit for use therein |
| 01/19/2011 | EP2276161A2 Method and apparatus for improving efficiency in a switching regulator at light loads |
| 01/19/2011 | EP2276160A2 Method and apparatus for improving efficiency in a switching regulator at light loads |
| 01/19/2011 | EP2275893A2 Automatic voltage regulator |
| 01/19/2011 | EP1756945B1 Current-mode instrumentation amplifier gain error correction circuitry |
| 01/19/2011 | CN1751376B Power supply control unit |
| 01/19/2011 | CN101952786A SEPIC fed buck converter |
| 01/19/2011 | CN101951014A Wind-light-diesel commercial power integral power supply system |
| 01/19/2011 | CN101950191A Voltage reference source with high-order temperature compensation circuit |
| 01/19/2011 | CN101950190A N-well potential control circuit used in booster circuit |
| 01/19/2011 | CN101498945B Control circuit for parallel and series connection of polysilicon reduction power supply silicon rod |
| 01/19/2011 | CN101345491B Frequency conversion multi-phase voltage regulator and its control method |
| 01/19/2011 | CN101257757B Fixed power limiter and lighting lamp |
| 01/18/2011 | USRE42039 DC to AC inverter with single-switch bipolar boost circuit |
| 01/18/2011 | USRE42037 Programmable current-sensing circuit providing continuous temperature compensation for DC-DC converter |
| 01/18/2011 | US7873442 System and method for managing and optimizing power use |
| 01/18/2011 | US7872884 Cascaded step-up converter and charge pump for efficient compliance voltage generation in an implantable stimulator device |
| 01/18/2011 | US7872845 Control system |
| 01/18/2011 | US7872520 Semiconductor integrated circuit device |
| 01/18/2011 | US7872519 Voltage divider circuit |
| 01/18/2011 | US7872463 Current balance arrangement |
| 01/18/2011 | US7872461 Reverse current stopping circuit of synchronous rectification type DC-DC converter |
| 01/18/2011 | US7872460 Method for detecting output short circuit in switching regulator |
| 01/18/2011 | US7872459 Semiconductor integrated circuit device and regulator using it |
| 01/18/2011 | US7872458 DC-to-DC converter |
| 01/18/2011 | US7872457 Syncronous switching regulator control circuit |
| 01/18/2011 | US7872456 Discontinuous conduction mode pulse-width modulation |
| 01/18/2011 | US7872455 Low-power voltage reference |
| 01/18/2011 | US7872454 Digital low dropout regulator |
| 01/18/2011 | US7872453 Customer intelligent reactive power automatic compensation energy-saved device |
| 01/18/2011 | US7872430 Solid state lighting panels with variable voltage boost current sources |
| 01/18/2011 | US7872428 Line or low voltage AC dimmer circuits with compensation for temperature related changes |
| 01/18/2011 | US7872427 Dimming circuit for LED lighting device with means for holding TRIAC in conduction |
| 01/18/2011 | US7872426 Ballast protecting device |
| 01/18/2011 | US7871420 Resonant converter tuning for maintaining substantial constant phaco handpiece power under increased load |
| 01/13/2011 | WO2011005339A1 Systems and methods for distributed power factor correction and phase balancing |
| 01/13/2011 | WO2011003971A1 Apparatus for obtaining information enabling the determination of the maximum power point of a power source |
| 01/13/2011 | WO2008079188A3 Apparatus and method for controlling the propagation delay of a circuit by controlling the voltage applied to the circuit |
| 01/13/2011 | US20110009171 Power supply circuit and electronic device |
| 01/13/2011 | US20110007432 Power Node Switching Center With Active Feedback Control Of Power Switches |
| 01/13/2011 | US20110006838 Device for controlling a power transistor |
| 01/13/2011 | US20110006836 Charge pump and charging/discharging method capable of reducing leakage current |
| 01/13/2011 | US20110006747 Step-up circuit and step-up circuit device |
| 01/13/2011 | US20110006746 Soft-start circuit and method for a switching regulator |
| 01/13/2011 | US20110006745 Method for regulating an output voltage |
| 01/13/2011 | US20110006744 System, method and apparatus to transition between pulse width modulation and pulse-frequency modulation in a switch mode power supply |
| 01/13/2011 | US20110006743 Controlling A Multi-Mode Switching Converter |
| 01/13/2011 | US20110006742 Dynamic Energy Harvesting Control |
| 01/13/2011 | US20110006694 Dc/dc converter control circuit, and power supply apparatus, light emitting apparatus and electronic device using the same |
| 01/13/2011 | US20110006691 Voltage converter for supplying a semiconductor light source, in particular a led lamp |
| 01/13/2011 | US20110006606 Voltage regulator circuit |
| 01/13/2011 | US20110006603 Portable power manager operating methods |
| 01/12/2011 | EP2273643A1 Protection circuit for a power supply unit and respective power supply unit |
| 01/12/2011 | EP2273466A1 Smoke sensor |
| 01/12/2011 | EP2273338A1 Current source regulator |
| 01/12/2011 | EP2271260A2 Optical microneedle-based spectrometer |
| 01/12/2011 | CN101944850A Voltage step-up and down switching power circuit as well as control circuit and method thereof |
| 01/12/2011 | CN101943926A Voltage reference circuit with temperature compensation |
| 01/12/2011 | CN101943925A Discharge circuit for voltage regulators |
| 01/12/2011 | CN101414195B High voltage stabilizing feedback type electricity-saving device |
| 01/12/2011 | CN101196755B High-precision voltage regulator |
| 01/11/2011 | US7869311 Built-in type optical disc apparatus |