| 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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| 04/03/2007 | US7199532 Lamp containing phase-control power controller with analog RMS load voltage regulation |
| 04/03/2007 | US7199531 Variable output single constant source light fixture |
| 04/03/2007 | US7199490 Semiconductor device for preventing noise generation |
| 03/29/2007 | WO2007035392A2 Switched mode power converter |
| 03/29/2007 | WO2007035203A2 Power controls with photosensor for tube mounted leds with ballast |
| 03/29/2007 | WO2007035111A1 Stabilizing winding for mvb in tn and tt grids |
| 03/29/2007 | WO2007035110A1 Autotransformer device with magnetic air gap |
| 03/29/2007 | WO2007034165A1 Methods and apparatus for constant-current regulation |
| 03/29/2007 | WO2006133272A3 Methods and apparatus for implementing power cycle control of lighting devices based on network protocols |
| 03/29/2007 | WO2006084080A3 Systems and methods for protecting a fuel cell |
| 03/29/2007 | US20070069809 Internal voltage generator |
| 03/29/2007 | US20070069808 Internal voltage generator |
| 03/29/2007 | US20070069807 Voltage regulation having varying reference during operation |
| 03/29/2007 | US20070069806 Operational amplifier and band gap reference voltage generation circuit including the same |
| 03/29/2007 | US20070069805 Internal voltage generating circuit |
| 03/29/2007 | US20070069804 High voltage generator and word line driving high voltage generator of memory device |
| 03/29/2007 | US20070069803 Charge-pump circuit |
| 03/29/2007 | US20070069802 Internal voltage generator |
| 03/29/2007 | US20070069801 Charge-pump type, voltage-boosting device with reduced ripple, in particular for non-volatile flash memories |
| 03/29/2007 | US20070069800 Negative charge-pump with circuit to eliminate parasitic diode turn-on |
| 03/29/2007 | US20070069708 Differential mode inductor with a center tap |
| 03/29/2007 | US20070069707 Method and apparatus for switching regulator capable of quick feedback from load |
| 03/29/2007 | US20070069706 Digital double-loop output voltage regulation |
| 03/29/2007 | US20070069705 Circuits and methods for providing multiple phase switching regulators which employ the input capacitor voltage signal for current sensing |
| 03/29/2007 | US20070069704 Multiphase DC chopper and method for operating a multiphase DC chopper |
| 03/29/2007 | US20070069703 Controller for DC-DC converter and method for controlling DC-DC converter |
| 03/29/2007 | US20070069702 Apparatus for regulating output voltages |
| 03/29/2007 | US20070069701 Low cost stability improvement for a linear voltage regulator |
| 03/29/2007 | US20070069700 Low-power voltage reference |
| 03/29/2007 | US20070069699 Dc/dc converter with inductor current sensing capability |
| 03/29/2007 | US20070069698 Circuit for multiplexing digital and analog information via single pin of driver for switched MOSFETs of DC-DC converter |
| 03/29/2007 | DE10337541B4 Integrierter Schaltungsbaustein und zugehöriges Optimierungsverfahren Integrated circuit package and related optimization method |
| 03/29/2007 | DE102005044639A1 Idle power compensating device for switching voltage levels, has switching assemblies connected with respective bidirectional power semiconductor switches, and capacitors serially connected with each other |
| 03/28/2007 | EP1766773A1 Power source and method for controlling operational power |
| 03/28/2007 | EP1766491A1 Output power factor control of pulse-width modulated inverter |
| 03/28/2007 | EP1766490A1 A device for distributed maximum power tracking for solar arrays |
| 03/28/2007 | EP1766489A2 Voltage regulator with adaptive frequency compensation |
| 03/28/2007 | EP1676181A4 On-chip compensation control for voltage regulation |
| 03/28/2007 | CN2884683Y Energy saving autocar antitheft device |
| 03/28/2007 | CN2884682Y All resonance power source circuit device having variable inputting voltage |
| 03/28/2007 | CN2884681Y Power limited circuit for PWM power source control chip |
| 03/28/2007 | CN2884649Y High voltage large capacity pulse current capacitor constant current charger |
| 03/28/2007 | CN2884647Y Reactive compensator of electrical network |
| 03/28/2007 | CN2884646Y Intelligent reactive compensator |
| 03/28/2007 | CN1937375A Control circuit for electric tool two-purpose power supply |
| 03/28/2007 | CN1937348A User side powergrid environmental-protection electricity-saving device |
| 03/28/2007 | CN1937119A Digital voltage-regulation transformer and voltage-regulation method |
| 03/28/2007 | CN1936757A Mixed maximum power point-tracing control method of photovoltaic water-raising system |
| 03/28/2007 | CN1936756A Method and apparatus to improve regulation of a power supply |
| 03/27/2007 | US7196916 Alternated duty cycle control method for half-bridge DC-DC converter |
| 03/27/2007 | US7196572 Integrated circuit for stabilizing a voltage |
| 03/27/2007 | US7196571 Semiconductor integrated circuit device |
| 03/27/2007 | US7196505 Device and method for low-power fast-response voltage regulator with improved power supply range |
| 03/27/2007 | US7196504 Constant-voltage circuit, semiconductor device using the same, and constant-voltage outputting method |
| 03/27/2007 | US7196503 Current averaging circuit for a PWM power converter |
| 03/27/2007 | US7196502 Switching regulator having soft start circuit |
| 03/27/2007 | US7196501 Linear regulator |
| 03/27/2007 | US7196500 Downlocking and/or upgrading integrated circuit |
| 03/27/2007 | US7196499 DC/DC converter with inductor current sensing capability |
| 03/27/2007 | US7196480 Method of soft-starting a switching power supply containing phase-control clipping circuit |
| 03/27/2007 | US7196478 Circuit arrangement |
| 03/27/2007 | CA2374934C Power supply device |
| 03/22/2007 | WO2007016602A3 Method and apparatus for controlling the input to 3-phase ac induction motors |
| 03/22/2007 | WO2006132821A3 Output level voltage regulation |
| 03/22/2007 | US20070067069 Digital power factor correction controller and AC-to-DC power supply including same |
| 03/22/2007 | US20070063763 Source transistor configurations and control methods |
| 03/22/2007 | US20070063762 Semiconductor device with charge pump booster circuit |
| 03/22/2007 | US20070063761 Charge pump system with smooth voltage output |
| 03/22/2007 | US20070063760 Charge pump |
| 03/22/2007 | US20070063685 DC-DC converter |
| 03/22/2007 | US20070063684 Device for the correction of the power factor in forced switching power supplies |
| 03/22/2007 | US20070063683 Process and device for recharging portable electronic devices |
| 03/22/2007 | US20070063682 Switched mode power converter |
| 03/22/2007 | US20070063681 Direct mode pulse width modulation for DC to DC converters |
| 03/22/2007 | US20070063680 Power controller |
| 03/22/2007 | US20070063679 Multi-phase buck converter |
| 03/22/2007 | US20070063678 Semiconductor device |
| 03/22/2007 | DE102005044641A1 Idle power compensation device for circuit of multiple switching voltage levels, has switching groups that are interconnected with one another, where condensers of groups are serially connected with one another |
| 03/22/2007 | DE102005044630A1 Voltage-regulation circuit for e.g. microprocessor, has voltage divider that feedbacks output voltage to differential amplifier, and field effect transistors and power sources that are provided to increase phase margin |
| 03/21/2007 | EP1763713A2 Method and system for enhanced dimming resolution in a light ballast through use of multiple control frequencies |
| 03/21/2007 | EP1346612B1 Improved control circuit for power factor corrected electronic ballasts and power supplies |
| 03/21/2007 | CN2882101Y AC rgulating and controlling DC loading device |
| 03/21/2007 | CN2882100Y 开关电源装置 Switching power supply unit |
| 03/21/2007 | CN2882075Y Zero cross trigger high voltage dynamic reactive power compensation device |
| 03/21/2007 | CN2882071Y Output buffer circuit of shunt power supply |
| 03/21/2007 | CN2881755Y Digital adjustable voltage-stabilizing power supply circuit |
| 03/21/2007 | CN2881754Y Underground cable voltage constant voltage control circuit of petroleum logging instrument |
| 03/21/2007 | CN2881753Y Electric saver with non cut-off voltage regulating function |
| 03/21/2007 | CN2881741Y Digital automatic AC constant-current source |
| 03/21/2007 | CN2881740Y High voltage digital automatic AC voltage-stablized power supply |
| 03/21/2007 | CN2879695Y Electrically heating garments |
| 03/21/2007 | CN1933313A Self-driving synchronous rectification and voltage-stabilizing circuit |
| 03/21/2007 | CN1933311A Automatic adapting voltage positioning high-speed pulsewidth modulation controller and method |
| 03/21/2007 | CN1932710A Low-voltage drop linear voltage regulator |
| 03/21/2007 | CN1932709A Light source current drive circuit utilizing single-terminal 3,3V voltage power-supply |
| 03/21/2007 | CN1306691C Power supply circuit with control of rise characteristics of output voltage |
| 03/21/2007 | CN1306676C Mobile phone charging apparatus appended to motorcycle |
| 03/20/2007 | US7194362 Switching circuit and individual voltmeter apparatus |
| 03/20/2007 | US7193495 Magnetically influenced current or voltage regulator and a magnetically influenced converter |
| 03/20/2007 | US7193457 Current-mode instrumentation amplifier gain error correction circuitry |