| 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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| 06/14/2007 | US20070132438 Current controlled switching mode power supply |
| 06/14/2007 | US20070132437 Method and cell for controlling the power factor of a power supply line |
| 06/14/2007 | US20070132436 Mcu with on-chip boost converter controller |
| 06/14/2007 | US20070132435 Step-up type DC-DC converter and method for controlling step-up type DC-DC converter |
| 06/14/2007 | US20070132434 Method and apparatus for improved voltage regulation |
| 06/14/2007 | US20070132433 Energy supply apparatus for a location having one or more consumers with said location being remote from power mains |
| 06/14/2007 | US20070132421 Time constant automatic estimation method, time constant automatic estimation apparatus and servo motor control system |
| 06/14/2007 | DE102005061377A1 Konstantspannungsquelle mit Ausgangsstrombegrenzung Constant voltage source with output current limit |
| 06/14/2007 | DE102005058484A1 Schaltungsanordnung und Verfahren zum Betreiben mindestens einer LED Circuit arrangement and method for operating at least one LED |
| 06/14/2007 | DE102005041458B3 Verfahren zur drahtlosen Datenübertragung bei einem Fahrradcomputer Method for wireless data transmission in a bicycle computer |
| 06/13/2007 | EP1795049A1 System and method for minimizing loss of electrical conduction during input of feed material to a furnace |
| 06/13/2007 | EP1794876A2 Systems and method for boosting output of an alternator |
| 06/13/2007 | EP1794661A1 Device for regulating electrical voltage |
| 06/13/2007 | EP1794511A1 Portable tempering container |
| 06/13/2007 | EP1687683A4 Adaptive delay control circuit for switched mode power supply |
| 06/13/2007 | EP1671521A4 A current sharing scheme and device for multiple ccf lamp operation |
| 06/13/2007 | CN1981556A System and method for delivery and management of end-user services |
| 06/13/2007 | CN1981432A Current-mode instrumentation amplifier gain error correction circuitry |
| 06/13/2007 | CN1981430A Power source and method for controlling operational power |
| 06/13/2007 | CN1980515A Inlaid self-adaptive control electronic transformer |
| 06/13/2007 | CN1980027A Switching regulator |
| 06/13/2007 | CN1979993A Power-less compensation control method |
| 06/13/2007 | CN1979367A Method for increasing element parameter precision adopting detection calibration |
| 06/13/2007 | CN1321458C Circuit for generating a reference voltage having low temperature dependency |
| 06/13/2007 | CN1321356C Arcless compensation type single-phase voltage regulating and stabilizing device |
| 06/12/2007 | US7231283 Method for regulating the power supply of a number of multiple field devices |
| 06/12/2007 | US7230838 Active damping control for a switch mode power supply |
| 06/12/2007 | US7230490 Voltage to current converter and method for converting |
| 06/12/2007 | US7230475 Semiconductor devices including an external power voltage control function and methods of operating the same |
| 06/12/2007 | US7230474 Current drive circuit reducing VDS dependency |
| 06/12/2007 | US7230473 Precise and process-invariant bandgap reference circuit and method |
| 06/12/2007 | US7230472 Base current cancellation for bipolar junction transistor current summing bias voltage generator |
| 06/12/2007 | US7230471 Charge pump circuit of LCD driver including driver having variable current driving capability |
| 06/12/2007 | US7230456 Low current consumption detector circuit and applications |
| 06/12/2007 | US7230409 Current limiting using PWM control |
| 06/12/2007 | US7230408 Pulse frequency modulated voltage regulator with linear regulator control |
| 06/12/2007 | US7230407 Apparatus and method for fixed-frequency control in a switching power supply |
| 06/12/2007 | US7230406 Fixed-frequency current mode converter and control method thereof |
| 06/12/2007 | US7230405 Non-isolated power conversion system having multiple switching power converters |
| 06/12/2007 | US7230388 Lighting of discharge lamp by frequency control |
| 06/12/2007 | CA2401592C Integrated current source feedback and current limiting element |
| 06/07/2007 | WO2007065170A2 Precision reversed bandgap voltage reference circuits and method |
| 06/07/2007 | WO2007050047A8 Electronic ballast with closed loop control using composite current and voltage feedback and method thereof |
| 06/07/2007 | WO2006096748A3 Bootstrapping circuit capable of sampling inputs beyond supply voltage |
| 06/07/2007 | US20070126496 Semiconductor integrated circuit |
| 06/07/2007 | US20070126495 Precision reversed bandgap voltage reference circuits and method |
| 06/07/2007 | US20070126494 Charge pump having shunt diode for improved operating efficiency |
| 06/07/2007 | US20070126493 Low power high side current monitor which operates at high voltages and method therefor |
| 06/07/2007 | US20070126410 System and method for implementing high-resolution delay |
| 06/07/2007 | US20070126409 Method and device for driving power converters |
| 06/07/2007 | US20070126408 Power supply device and electronic equipment comprising same |
| 06/07/2007 | US20070126365 Inductively powered apparatus |
| 06/06/2007 | EP1792386A1 Digital pulse width modulated controller |
| 06/06/2007 | EP1395889A4 Automatic power factor correction system |
| 06/06/2007 | DE112005001834T5 Spannungsversorgungs-Steuerschaltung Power supply control circuit |
| 06/06/2007 | DE10311447B4 Schaltungsanordnung für ein Elektrogerät A circuit arrangement for an electrical appliance |
| 06/06/2007 | DE10149234B4 Sicherungsgeschützter Nebenschlußregler und Verfahren zum Schützen eines Nebenschußreglers Secure assurance shunt regulator and method for protecting a side weft regulator |
| 06/06/2007 | CN1977224A Output power factor control of pulse-width modulated inverter |
| 06/06/2007 | CN1975622A Pulse frequency modulation methods and circuits |
| 06/06/2007 | CN1320649C 电荷泵装置 The charge pump device |
| 06/05/2007 | US7227792 Internal voltage level control circuit and semiconductor memory device as well as method of controlling the same |
| 06/05/2007 | US7227404 Method for preventing regulated supply undershoot in state retained latches of a leakage controlled system using a low drop out regulator |
| 06/05/2007 | US7227403 Internal voltage generator for semiconductor device |
| 06/05/2007 | US7227401 Resistorless bias current generation circuit |
| 06/05/2007 | US7227344 Switching DC-DC converter with improved stabilization |
| 06/05/2007 | US7227343 Linear voltage regulator with selectable output voltage |
| 06/05/2007 | US7227342 Extremely high-speed switchmode DC-DC converters |
| 06/05/2007 | US7227341 Circuit for use with switched leg power supply |
| 06/05/2007 | US7227317 Method and system for enhanced dimming resolution in a light ballast through use of multiple control frequencies |
| 06/05/2007 | US7227281 Causing operation of load in alternate, reduced peak power mode |
| 06/05/2007 | US7227118 Light-emitting element driving circuit having a switching unit with a diode |
| 05/31/2007 | WO2007062354A2 Charge pump for intermediate voltage |
| 05/31/2007 | WO2007061369A1 Pre-biased circuit for synchronous rectified power converters |
| 05/31/2007 | WO2007028087A3 Three-phase low noise charge pump and method |
| 05/31/2007 | WO2006127389A3 Power supply output monitor |
| 05/31/2007 | WO2006121893B1 Power factor correction apparatus and method of producing a power factor correction capacitance for a specified load |
| 05/31/2007 | US20070122964 Semiconductor Device Equipped with a Voltage Step-Up Circuit |
| 05/31/2007 | US20070120593 Apparatus for generating reference voltage in semiconductor memory apparatus |
| 05/31/2007 | US20070120592 Semiconductor device with pump circuit |
| 05/31/2007 | US20070120591 Regulated charge pump with digital resistance control |
| 05/31/2007 | US20070120590 Apparatus for generating elevated voltage |
| 05/31/2007 | US20070120548 Switching regulator, and a circuit and method for controlling the switching regulator |
| 05/31/2007 | US20070120547 Slope compensation for switching regulator |
| 05/31/2007 | US20070120546 Compact voltage step-up/step-down switching regulator |
| 05/31/2007 | US20070120545 Dc/dc converter |
| 05/31/2007 | US20070120544 Single-pin tracking/soft-start function with timer control |
| 05/31/2007 | US20070120543 Flexible power converter and simplified process controller |
| 05/31/2007 | US20070120542 Pulse signal drive circuit |
| 05/31/2007 | US20070120541 Capacitor insulating power supply |
| 05/31/2007 | US20070120540 Marginal check voltage setting means built-in power-supply device |
| 05/31/2007 | US20070120423 Switching Power Supply Controller With Built-In Supply Switching |
| 05/31/2007 | DE10212360B9 Schaltkreis zum Erzeugen einer einstellbaren Ausgangskennlinie Circuit for generating an adjustable output characteristic |
| 05/30/2007 | CN2907076Y DC/DC transformer controller with linear mode and switch mode |
| 05/30/2007 | CN2907029Y Rotary electromagnetic active and reactive power continuous adjuster |
| 05/30/2007 | CN2906714Y Low pressure drop voltage regulator with common mode negative feedback |
| 05/30/2007 | CN2905298Y Magnetic amplifier type arc welding rectifier |
| 05/30/2007 | CN1319241C Integrated current source feedback and current limiting element |
| 05/30/2007 | CN1319169C Semiconductor integrated circuit having controllable internal power source and voltage |
| 05/29/2007 | US7224590 Forward converter with synchronous rectifier and reverse current control |
| 05/29/2007 | US7224562 Short-circuit protective circuit |