| 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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| 02/08/2011 | USRE42116 Low dropout regulator capable of on-chip implementation |
| 02/08/2011 | US7885088 Method for controlling a multiphase interleaving converter and corresponding controller |
| 02/08/2011 | US7884732 Wireless network control for building facilities |
| 02/08/2011 | US7884591 Non-linear PWM controller for DC-to-DC converters |
| 02/08/2011 | US7884590 Voltage converter |
| 02/08/2011 | US7884589 Controllable power supply device with step-up function |
| 02/08/2011 | US7884588 Control method and device for a system of interleaved converters using a designated master converter |
| 02/08/2011 | US7884587 Power supply device and image forming apparatus |
| 02/08/2011 | US7884586 Controlling a switching regulator mode determined by an ideal duty cycle for maintaining high efficiency for a wide input voltage range |
| 02/08/2011 | US7884585 Pre-biased circuit for synchronous rectified power converters |
| 02/08/2011 | US7884584 Switching power supply circuit |
| 02/08/2011 | US7884583 Speed recognition for half bridge control |
| 02/08/2011 | US7884582 Method and device in frequency converter |
| 02/08/2011 | US7884557 Protection circuit and method |
| 02/03/2011 | WO2011014274A1 Systems and method for limiting maximum voltage in solar photovoltaic power generation systems |
| 02/03/2011 | WO2011013187A1 Self-excited reactive power compensation device |
| 02/03/2011 | WO2010138948A3 Buck-boost control circuit |
| 02/03/2011 | US20110025409 Semiconductor integrated circuit device |
| 02/03/2011 | US20110025289 Two-stage switching power supply |
| 02/03/2011 | US20110025288 Method and apparatus for maintaining a constant load current with line voltage in a switch mode power supply |
| 02/03/2011 | US20110025287 Regulator circuit |
| 02/03/2011 | US20110025286 Control Circuit For a Primary Controlled Switched Mode Power Supply with Improved Accuracy of the Voltage Control and Primary Controlled Switched Mode Power Supply |
| 02/03/2011 | US20110025285 Power supply voltage controlling circuit for use in subthreshold digital cmos circuit including minute current generator and controlled output voltage generator circuit |
| 02/03/2011 | US20110025284 Multi-phase dc-to-dc converter with daisy chained pulse width modulation generators |
| 02/03/2011 | US20110025283 Dc-dc converter, control circuit, and power supply control method |
| 02/03/2011 | US20110025282 Driving circuit for an electric load and electric system comprising the circuit |
| 02/03/2011 | US20110025281 Transient Differential Switching Regulator |
| 02/03/2011 | US20110025280 Regulator having phase compensation circuit |
| 02/03/2011 | US20110025279 Power supply circuit and semiconductor device |
| 02/03/2011 | US20110025248 Multi-phase dc/dc boost converter |
| 02/03/2011 | DE102009034349A1 Verfahren und Schaltung zur Leistungsfaktor-Korrektur Method and circuit for power factor correction |
| 02/03/2011 | DE102009033385A1 Netzteil-Schaltungsanordnung und Verfahren zum Betreiben einer Netzteil-Schaltungsanordnung Power supply circuitry and method for operating a power supply circuit |
| 02/02/2011 | EP2280329A1 Apparatus for obtaining information enabling the determination of the maximum power point of a power source. |
| 02/02/2011 | EP2279550A2 System and method using a current mirror to program an output voltage and current |
| 02/02/2011 | CN201732312U Current constant device |
| 02/02/2011 | CN201732311U Low power consumption circuit for automobile-used controller |
| 02/02/2011 | CN201732310U Compensator transformer type AC voltage regulation save-energy device |
| 02/02/2011 | CN201732309U Automatic silicon chain adjusting controller |
| 02/02/2011 | CN1975622B Pulse frequency modulation methods and circuits |
| 02/02/2011 | CN1859820B Constant current driving circuit for LED |
| 02/02/2011 | CN101964608A Photovoltaic power generation distribution type maximum power output system |
| 02/02/2011 | CN101964517A Metal oxide semiconductor current limiting circuit, linear voltage regulator and voltage converting circuit |
| 02/02/2011 | CN101963820A Self-adapting Miller compensation type voltage regulator |
| 02/02/2011 | CN101963819A Reference voltage circuit and electronic device |
| 02/02/2011 | CN101963787A Dual feedback loop control method of power active filter |
| 02/02/2011 | CN101546204B Voltage generator with dynamic resistance feedback control |
| 02/02/2011 | CN101477384B Voltage regulating apparatus of voltage stabilizer |
| 02/01/2011 | US7882383 System on a chip with RTC power supply |
| 02/01/2011 | US7881079 UPS frequency converter and line conditioner |
| 02/01/2011 | US7881026 Semiconductor integrated circuit |
| 02/01/2011 | US7880554 Periodic timing jitter reduction in oscillatory systems |
| 02/01/2011 | US7880535 Semiconductor device, control method of semiconductor device, and control information generating method for semiconductor device |
| 02/01/2011 | US7880534 Reference circuit for providing precision voltage and precision current |
| 02/01/2011 | US7880532 Reference voltage generating circuit |
| 02/01/2011 | US7880531 System, apparatus, and method for selectable voltage regulation |
| 02/01/2011 | US7880530 Power supply circuit, display driver, electro-optical device, and electronic instrument |
| 02/01/2011 | US7880458 Method and device for driving power converters |
| 02/01/2011 | US7880457 Dual-loop DC-to-DC converter apparatus |
| 02/01/2011 | US7880456 DC/DC voltage regulator with automatic current sensing selectability for linear and switch mode operation utilizing a single voltage reference |
| 02/01/2011 | US7880455 Short circuit current ratcheting in switch mode DC/DC voltage regulators |
| 02/01/2011 | US7880454 Methods and systems for control of switches in power regulators/power amplifiers |
| 02/01/2011 | US7880453 Interleaved switching converter, and switching controller and controlling method thereof |
| 02/01/2011 | US7880452 Trimming circuit and method for replica type voltage regulators |
| 02/01/2011 | US7880451 Method and apparatus for power conversion and regulation |
| 02/01/2011 | US7880450 Switching power supply, control circuit controlling switching power supply and control method of switching power supply |
| 02/01/2011 | US7880449 Capacitor start-up apparatus and method with fail-safe short circuit protection |
| 02/01/2011 | US7880440 Switching power supply |
| 02/01/2011 | US7880405 System and method for providing adjustable ballast factor |
| 02/01/2011 | US7880404 Controlling current through serial LEDs using a low voltage transistor when using a high voltage driver |
| 02/01/2011 | US7880088 Power electronic switching device with laminated bus |
| 01/27/2011 | WO2011011503A2 System and method for pre-charging a bootstrap capacitor in a swithing regulator with high pre- bias voltage |
| 01/27/2011 | WO2011011135A1 High bandwidth power supply system with high efficiency and low distortion |
| 01/27/2011 | WO2010096682A3 Power transfer management for local power sources of a grid-tied load |
| 01/27/2011 | WO2010002612A3 Internal power supply for a ballast |
| 01/27/2011 | US20110019315 Over-current protection for dc-to-dc converters |
| 01/27/2011 | US20110018851 Liquid crystal display and charge pump thereof |
| 01/27/2011 | US20110018618 Charge pump circuit |
| 01/27/2011 | US20110018617 Charge Pump with Reduced Energy Consumption Through Charge Sharing and Clock Boosting Suitable for High Voltage Word Line in Flash Memories |
| 01/27/2011 | US20110018615 Charge Pump with Current Based Regulation |
| 01/27/2011 | US20110018608 Bipolar Transistor, Band-Gap Reference Circuit and Virtual Ground Reference Circuit |
| 01/27/2011 | US20110018517 Multi-level signaling |
| 01/27/2011 | US20110018516 Dc-dc converters |
| 01/27/2011 | US20110018515 Dc-dc converters |
| 01/27/2011 | US20110018514 Dual-mode buck switching regulator and control circuit therefor |
| 01/27/2011 | US20110018513 Variable voltage dc-dc converter |
| 01/27/2011 | US20110018512 Switching power supply device |
| 01/27/2011 | US20110018511 Integratable efficient switching down converter |
| 01/27/2011 | US20110018510 Adaptive miller compensated voltage regulator |
| 01/27/2011 | US20110018509 Driver, Current Regulating Circuit Thereof, and Method of Current Regulation |
| 01/27/2011 | US20110018508 Method and apparatus for high performance switch mode voltage regulators |
| 01/27/2011 | US20110018507 Switched power regulator |
| 01/27/2011 | US20110018506 H-bridge circuit and method for operating such circuit |
| 01/27/2011 | US20110018505 Current Sensing Load Demand Apparatus and Methods |
| 01/27/2011 | US20110018480 Converter circuit |
| 01/26/2011 | EP2278428A2 Diagnostic system for protecting a tap-changer |
| 01/26/2011 | EP2276406A2 Apparatus and methods for non-invasive measurement of a substance within a body |
| 01/26/2011 | EP1510897B1 Noise filter circuit |
| 01/26/2011 | EP1361649B1 Dc/dc buck-boost converter |
| 01/26/2011 | CN201726098U Multifunctional circuit for controlling and protecting switching device |
| 01/26/2011 | CN201725234U Low-power circuit for household appliances |