| 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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| 06/04/2009 | US20090140708 DC to DC converter with Pseudo Constant Switching Frequency |
| 06/04/2009 | US20090140707 Circuit for an Active Diode and Method for Operating an Active Diode |
| 06/04/2009 | US20090140706 System method and apparatus for a multi-phase dc-to-dc converter |
| 06/04/2009 | US20090140705 Device for Regulating Electrical Voltage |
| 06/04/2009 | US20090140704 Method for the operation of a wind energy plant with voltage-dependent control of a reactive electric variable which is to be provided |
| 06/04/2009 | DE102007056468A1 Messsignalverarbeitungseinrichtung und Verfahren zur Verarbeitung von zumindest zwei Messsignalen Measurement signal processing device and method for processing at least two measurement signals |
| 06/04/2009 | DE102007055231A1 Stromversorgungsschaltung für ein elektronisches Gerät, Computer mit einer Stromversorgungsschaltung und Energiesparverfahren A power supply circuit for an electronic device, computer with a power supply circuit and power saving method |
| 06/03/2009 | EP2066017A1 Method of operating a wind energy system with a voltage-dependent control for an electric reactive quantity to be provided |
| 06/03/2009 | EP2065780A1 Controlled charge pump arrangement and method of controlling a clocked charge pump |
| 06/03/2009 | EP2064806A1 Power supply device with power factor correction and (startup) current limitation |
| 06/03/2009 | EP2064804A2 Multiphase power converters and multiphase power converting methods |
| 06/03/2009 | EP2064609A2 Reducing oscillations in system with foldback current limit when inductive load is connected |
| 06/03/2009 | EP1772038A4 System and method for delivery and management of end-user services |
| 06/03/2009 | CN201251719Y High pressure large power noncontact voltage stabilizer |
| 06/03/2009 | CN201251718Y Low-fluctuation non-contact voltage stabilizer |
| 06/03/2009 | CN101446838A Method and device for controlling power consumption of electronic device |
| 06/02/2009 | US7543162 CPU frequency regulating circuit |
| 06/02/2009 | US7542319 Chalcogenide glass constant current device, and its method of fabrication and operation |
| 06/02/2009 | US7541862 Reference voltage generating circuit |
| 06/02/2009 | US7541861 Matching for time multiplexed transistors |
| 06/02/2009 | US7541797 Control of a DC power supply |
| 06/02/2009 | US7541795 Apparatus and method for start-up and over-current protection for a regulator |
| 06/02/2009 | US7541794 Integrated FET synchronous multiphase buck converter with innovative oscillator |
| 06/02/2009 | US7541793 Parallel power supply with active droop current sharing circuit having current limiting function |
| 06/02/2009 | US7541792 Compensated switching power supply controller and method therefor |
| 06/02/2009 | US7541791 Switch mode power converter having multiple inductor windings equipped with snubber circuits |
| 06/02/2009 | US7541790 Method and apparatus for power savings in a switching regulator |
| 06/02/2009 | US7541789 Common sharing bus control circuit for signal regulation modules |
| 06/02/2009 | US7541788 Switching regulator and method for switching output voltage thereof |
| 06/02/2009 | US7541787 Transistor drive circuit, constant voltage circuit, and method thereof using a plurality of error amplifying circuits to effectively drive a power transistor |
| 06/02/2009 | US7541786 Voltage regulator |
| 06/02/2009 | US7541785 Load driving device and portable apparatus utilizing such driving device |
| 06/02/2009 | US7541752 Illuminating device and liquid crystal display |
| 06/02/2009 | US7540641 Apparatus and method for dimming function to control LED intensity |
| 05/28/2009 | WO2009067470A2 Charge recycling a 1 of n ndl gate with a time varying power supply |
| 05/28/2009 | US20090136220 Method of transition between controls for a ventilation system |
| 05/28/2009 | US20090135632 Step-down switching regulator capable of providing high-speed response with compact structure |
| 05/28/2009 | US20090134937 Charge pump circuit |
| 05/28/2009 | US20090134860 Power supply apparatus |
| 05/28/2009 | US20090134859 Switching power supply device |
| 05/28/2009 | US20090134858 Voltage regulating apparatus and method and voltage regulator thereof |
| 05/28/2009 | US20090134857 Apparatus and method for adjusting working frequency of voltage regulator down circuit (vrd) by detecting current |
| 05/28/2009 | US20090134855 Method for controlling a direct current chopper controller |
| 05/28/2009 | US20090134854 Apparatus and methods for controlling operation of a single-phase voltage regulator in a three-phase power system |
| 05/28/2009 | US20090134853 Power supply apparatus |
| 05/28/2009 | US20090134852 System and method using a current mirror to program an output voltage and current |
| 05/28/2009 | US20090134851 Electric power storage system using capacitors and control method thereof |
| 05/28/2009 | US20090134833 Phase current sampling and regulating apparatus and methods, and electric motor drive systems |
| 05/28/2009 | US20090134816 Self adjusting power supply apparatus and method |
| 05/28/2009 | DE102008056192A1 Leistungsversorgung zum Liefern einer internen Leistungsversorgungsspannung Power supply for providing an internal power supply voltage |
| 05/27/2009 | EP2063525A1 Electronic control device |
| 05/27/2009 | EP2063521A1 Device for driving a load |
| 05/27/2009 | EP2062347A1 Method and device for reducing the influence of a dc component in a load current of an asynchronous three-phase motor |
| 05/27/2009 | EP1886153A4 Bi-directional mos current sense circuit |
| 05/27/2009 | CN201248009Y Commutation voltage stabilizer and generator equipped with the same |
| 05/27/2009 | CN201247419Y Power supply output circuit and television set |
| 05/27/2009 | CN201247402Y Controller for gas stove |
| 05/27/2009 | CN101442864A Current regulation circuit and power supply component containing the same |
| 05/27/2009 | CN101442287A Diesel locomotive constant-power control method with voltage-limiting current-limiting protection |
| 05/27/2009 | CN101442265A Power supply for portable electronic apparatus |
| 05/27/2009 | CN101442260A Secondary constant-current constant-voltage controller chip and converter thereof |
| 05/27/2009 | CN101442254A DC bus-bar voltage collection method for frequency changer |
| 05/27/2009 | CN101442252A DC bus-bar voltage collection circuit for frequency changer |
| 05/27/2009 | CN101441492A Configuration optimizing control system and control method of photovoltaic battery array |
| 05/27/2009 | CN101441491A Integrated circuit of programmable control power device |
| 05/27/2009 | CN101441490A Start-up circuit of three-terminal voltage-stabilizing integrated circuit |
| 05/27/2009 | CN101441489A Integrated circuit for implementing high PSRR and method thereof |
| 05/27/2009 | CN101441488A Voltage regulator and controlling method thereof |
| 05/27/2009 | CN100492895C Feedback control system and method |
| 05/27/2009 | CN100492861C Method of forming a power supply control and device therefor |
| 05/27/2009 | CN100492840C Power supply apparatus |
| 05/27/2009 | CN100492838C Multiple voltage regulating circuit |
| 05/27/2009 | CN100492244C Voltage regulator with low voltage difference |
| 05/26/2009 | US7539965 Circuit layout with active components and high breakdown voltage |
| 05/26/2009 | US7538601 Step-up voltage generator for semiconductor memory and method for controlling the same |
| 05/26/2009 | US7538600 Voltage generator and semiconductor memory apparatus with the same |
| 05/26/2009 | US7538599 Integrated circuit with standby mode minimizing current consumption |
| 05/26/2009 | US7538537 Constant-voltage circuit and controlling method thereof |
| 05/26/2009 | US7538536 DC-AC converter and controller IC therefor |
| 05/26/2009 | US7538535 Error voltage ripple compensation to extend bandwidth of a feedback loop in a DC-to-DC converter |
| 05/26/2009 | US7538534 Method and apparatus for controlling output current of a cascaded DC/DC converter |
| 05/26/2009 | US7538533 Method and apparatus to provide temporary peak power from a switching regulator |
| 05/26/2009 | US7538532 Bidirectional power conversion with multiple control loops |
| 05/26/2009 | US7538531 Drive circuit and switching regulator comprising the same |
| 05/26/2009 | US7538530 Buck converter |
| 05/26/2009 | US7538529 Power-supply apparatus |
| 05/26/2009 | US7538528 Constant power foldback mechanism programmable to approximate safe operating area of pass device for providing connection to load |
| 05/26/2009 | US7538527 Current-fed multiple-output power converter |
| 05/26/2009 | US7538526 Switching regulator, and a circuit and method for controlling the switching regulator |
| 05/26/2009 | US7538525 Power factor correction circuit |
| 05/26/2009 | US7538497 Constant current driver, back light source and color liquid crystal display |
| 05/26/2009 | US7538453 Fan power supply system |
| 05/22/2009 | WO2009065050A1 Data-dependet voltage regulator |
| 05/22/2009 | WO2009063214A1 Near field rf communicators |
| 05/22/2009 | WO2009045008A3 Circuit protection device |
| 05/22/2009 | WO2007143570A3 Method, system, amd apparatus for controlling an electric motor |
| 05/22/2009 | WO2007056040A3 Remote control of lighting |
| 05/21/2009 | US20090129768 Control circuit for self-excitation dc/dc converter, light emitting device using such control circuit, and electronic device |
| 05/21/2009 | US20090129131 Power generator for spectrometry |
| 05/21/2009 | US20090128354 Power supply for providing an internal power supply voltage |