| 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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| 11/18/2009 | CN100561845C Self-driving synchronous rectification and voltage-stabilizing circuit |
| 11/18/2009 | CN100561788C Power supply |
| 11/18/2009 | CN100561395C Timer structure and microcontroller and optical ballast possessing same |
| 11/17/2009 | US7619940 Apparatus and method of generating power up signal of semiconductor integrated circuit |
| 11/17/2009 | US7619908 Prognostic health monitoring in switch-mode power supplies with voltage regulation |
| 11/17/2009 | US7619903 Switching mode power supply and a method of operating the power supply in a power save mode |
| 11/17/2009 | US7619464 Current comparison based voltage bias generator for electronic data storage devices |
| 11/17/2009 | US7619402 Low dropout voltage regulator with programmable on-chip output voltage for mixed signal embedded applications |
| 11/17/2009 | US7619400 Compact voltage step-up/step-down switching regulator |
| 11/17/2009 | US7619399 Apparatus to generate high voltage using digital control and method thereof |
| 11/17/2009 | US7619398 Programmable on-chip sense line |
| 11/17/2009 | US7619397 Soft-start circuit for power regulators |
| 11/17/2009 | US7619396 Thermal dissipation improved power supply arrangement and control method thereof |
| 11/17/2009 | US7619395 End-point prediction scheme for voltage regulators |
| 11/17/2009 | US7619370 Power allocation methods for lighting devices having multiple source spectrums, and apparatus employing same |
| 11/17/2009 | US7619362 Outer jacket leak detection method and ballast implementing the method |
| 11/12/2009 | WO2009137115A1 Addressable led light string |
| 11/12/2009 | US20090281048 Method and System for Inducing Anti-aging in Skin |
| 11/12/2009 | US20090278592 Internal voltage discharge circuit and its control method |
| 11/12/2009 | US20090278521 Power Supply Device And Electronic Appliance Therewith |
| 11/12/2009 | US20090278520 Power Converter with Capacitive Energy Transfer and Fast Dynamic Response |
| 11/12/2009 | US20090278519 Bus loop power interface and method |
| 11/12/2009 | US20090278518 Voltage regulator |
| 11/12/2009 | US20090278517 Regulator with Device Performance Dynamic Mode Selection |
| 11/12/2009 | US20090278516 transient recovery circuit for switching devices |
| 11/12/2009 | US20090278515 Multiple output voltage regulator |
| 11/12/2009 | US20090278514 Feedback power control system for an electrical component |
| 11/12/2009 | US20090278513 Enhancement mode III-nitride switch with increased efficiency and operating frequency |
| 11/12/2009 | US20090278512 Apparatus, system, and method for controlling a matching network |
| 11/12/2009 | US20090278511 Method for reducing the reactive power requirement of a fundamental frequency clocked power supply side converter under no load and with low motor loading |
| 11/12/2009 | US20090278066 Hydraulic valve control device and method for checking a hydraulic valve control device |
| 11/12/2009 | DE102008014776A1 Electronic power supply unit for producing secondary-side output voltage from primary-side input voltage for feeding electronic device, has control unit, which has arrangement for monitoring voltage on power supply connections |
| 11/11/2009 | EP2115860A1 Gate drive voltage selection for a voltage regulator |
| 11/11/2009 | EP2115547A1 Switching technique for efficient electrical power utilization |
| 11/11/2009 | CN201345616Y Auxiliary output circuit of switch power supply |
| 11/11/2009 | CN201345612Y Power supply circuit of display |
| 11/11/2009 | CN201345611Y Ultra-low voltage running device for separate wall-hanging rated air-conditioner |
| 11/11/2009 | CN201345067Y Full digital power regulating device |
| 11/11/2009 | CN201345066Y High-precision automatic AC voltage regulator |
| 11/11/2009 | CN201345065Y Electricity-saving device |
| 11/11/2009 | CN201345064Y Stable-value soft-regulation AC (alternating current) voltage stabilizer |
| 11/11/2009 | CN201345063Y AC regulated power supply with network access function |
| 11/11/2009 | CN201345062Y AC regulated power supply capable of being maintained conveniently |
| 11/11/2009 | CN201345047Y Human-computer interface type cigarette hollow head notch detector |
| 11/11/2009 | CN201345044Y Power source control circuit |
| 11/11/2009 | CN101578203A Device, system and method for reducing the consumption of closed-circuit current of a motor vehicle |
| 11/11/2009 | CN101577999A Circuit device of light-emitting diode (LED) drive stabilizing system |
| 11/11/2009 | CN101577998A Method and device for controlling light-emitting diode luminance feedback |
| 11/11/2009 | CN101577502A Linear direct current regulated power supply |
| 11/11/2009 | CN101577500A Regulated power supply used for hydraulic servo controller |
| 11/11/2009 | CN101577442A Cell phone battery charge system and control method thereof |
| 11/11/2009 | CN101576754A Charge pump circuit and method for controlling same |
| 11/11/2009 | CN100559715C Short circuit and overload protective device of the transistor output |
| 11/11/2009 | CN100559320C Testing apparatus and electric source circuit |
| 11/11/2009 | CN100559319C Hybrid switched mode/linear power amplifier power supply for use in polar transmitter |
| 11/11/2009 | CN100559318C Frequency compensation circuit and method for a switching regulator using external zero |
| 11/11/2009 | CN100559316C 电路保护系统 Circuit Protection Systems |
| 11/10/2009 | US7616467 Circuit apparatus for transformerless conversion of an electric direct voltage into an alternating voltage |
| 11/10/2009 | US7616465 Energy storage and hold-up method and apparatus for high density power conversion |
| 11/10/2009 | US7616464 Reverse current control system for a power converter |
| 11/10/2009 | US7616456 Apparatus and system for providing transient suppression power regulation |
| 11/10/2009 | US7616051 Integrated circuit, electronic device and integrated circuit control method |
| 11/10/2009 | US7616049 Pumping voltage generating apparatus of semiconductor integrated circuit |
| 11/10/2009 | US7615984 DC-DC converter and method of controlling thereof |
| 11/10/2009 | US7615983 High frequency power device for protecting an amplifying element therein |
| 11/10/2009 | US7615982 Power converter able to rapidly respond to fast changes in load current |
| 11/10/2009 | US7615981 Boost converter with enhanced control capabilities of emulating an inductor current |
| 11/10/2009 | US7615980 Marginal check voltage setting means built-in power-supply device |
| 11/10/2009 | US7615979 Flexible power converter and simplified process controller |
| 11/10/2009 | US7615978 Current mode control with feed-forward for power devices |
| 11/10/2009 | US7615977 Linear voltage regulator and method of limiting the current in such a regulator |
| 11/10/2009 | US7615976 Switching circuit of power converter having voltage-clipping device to improve efficiency |
| 11/10/2009 | US7615975 Motor module having a deformable component that absorbs tolerances |
| 11/10/2009 | US7615974 High dimming ratio LED drive circuit |
| 11/10/2009 | US7615941 Apparatus and method for maximizing the longevity of arc tube bulbs during pulsing operation |
| 11/10/2009 | US7615940 Gate driver topology for maximum load efficiency |
| 11/10/2009 | US7615939 Spectrally calibratable multi-element RGB LED light source |
| 11/10/2009 | US7615937 High-pressure discharge lamp lighting device and lighting fixture |
| 11/05/2009 | WO2009134016A2 Automatic voltage regulator |
| 11/05/2009 | WO2009133781A1 Field instrument |
| 11/05/2009 | WO2009133512A1 Power management |
| 11/05/2009 | US20090276641 Multi-phase voltage regulator on motherboard |
| 11/05/2009 | US20090273391 Flash memories and regulated voltage generators thereof |
| 11/05/2009 | US20090273330 Merged ramp/oscillator for precise ramp control in one cycle pfc converter |
| 11/05/2009 | US20090273329 Step-down type switching regulator |
| 11/05/2009 | US20090273328 Voltage/current control apparatus and method |
| 11/05/2009 | US20090273327 Power supply device, electronic device using the same, and semiconductor device |
| 11/05/2009 | US20090273326 Systems and methods for controlling output currents of power converters |
| 11/05/2009 | US20090273325 Current negative-feedback circuit and dc-dc converter using the circuit |
| 11/05/2009 | US20090273323 Series regulator with over current protection circuit |
| 11/05/2009 | US20090273237 Regulator circuit and car provided with the same |
| 11/05/2009 | CA2722764A1 Automatic voltage regulator |
| 11/04/2009 | EP2114002A1 3-phase power conversion device |
| 11/04/2009 | EP2113979A1 Power generating device and method for operating the same |
| 11/04/2009 | CN201341088Y Power factor correction control circuit for inverter air conditioner |
| 11/04/2009 | CN201340561Y DC voltage-stabilized power supply based on three-phase pulsed rectifier |
| 11/04/2009 | CN201340560Y Induction type pressure regulator structure improvement |
| 11/03/2009 | US7613019 Method and apparatus to limit maximum switch current in a switch of a switching power supply |
| 11/03/2009 | US7612606 Low voltage current and voltage generator |
| 11/03/2009 | US7612605 Bootstrap voltage generating circuits |