| 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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| 06/05/2008 | US20080129262 Switching power supply source |
| 06/05/2008 | US20080129261 Linear voltage regulator |
| 06/05/2008 | US20080129259 Multiphase DC-DC converter |
| 06/05/2008 | US20080129258 Dc dc voltage boost converter |
| 06/05/2008 | US20080129256 Voltage regulator made of high voltage transistors |
| 06/05/2008 | US20080129255 Multipower voltage regulator |
| 06/05/2008 | US20080129225 Power Supply Device, Light Emitting Device Using Such Power Supply Device, And Electronic Device |
| 06/05/2008 | US20080129220 System and Method for Driving LED |
| 06/05/2008 | DE102006056591A1 Input voltage i.e. active parallel voltage, limiting circuit for e.g. two-wire measuring device, has reference diode arranged in transverse path, in which control transistor is arranged, and output of amplifier connected with base |
| 06/05/2008 | DE102006051768A1 Vorrichtung zur Erkennung von Funktionsstörungen durch Manipulation einer internen Spannungsversorgung Apparatus for detecting malfunctions caused by manipulation of an internal power supply |
| 06/04/2008 | EP1927040A2 Switched mode power converter |
| 06/04/2008 | EP1690331A4 Power circuit and method of rising output voltage of power circuit |
| 06/04/2008 | EP1584003B1 Power supply circuit in addition to communications equipment comprising a power supply circuit |
| 06/04/2008 | CN201069857Y Offline detection device for passive automatic compensation electric-controlled device |
| 06/04/2008 | CN201069451Y DC power load device |
| 06/04/2008 | CN201067825Y Induction control type acoustooptical indication electron temperature adjusting electric soldering iron |
| 06/04/2008 | CN101194216A Output level voltage regulation |
| 06/04/2008 | CN101192806A A control method of transformer excitation cycle and its control circuit |
| 06/04/2008 | CN101192790A 1/2 current adjuster/modulator |
| 06/04/2008 | CN101192070A Power-on protection method and circuit for voltage regulator |
| 06/04/2008 | CN101192069A Multipath DC voltage-stabilizing output circuit |
| 06/04/2008 | CN101192068A D.C. voltage stabilizing power source switching control apparatus |
| 06/04/2008 | CN101192067A Two high-voltage constant flow source circuit |
| 06/04/2008 | CN100392971C Voltage limiter |
| 06/04/2008 | CN100392967C Control circuit for switching power supply device and switching power supply device used therewith |
| 06/04/2008 | CN100392966C Choke converter |
| 06/04/2008 | CN100392694C Power module and display device |
| 06/04/2008 | CN100392553C Method for regulating static var compensator of electricity transmission system |
| 06/04/2008 | CN100392552C Duty ratio estimator |
| 06/04/2008 | CN100392551C Output regulator |
| 06/04/2008 | CN100392550C Power-supply device and its control method |
| 06/04/2008 | CN100392549C Current source controller with external load power supply |
| 06/04/2008 | CN100392548C Multiplex output circuit and control method thereof |
| 06/04/2008 | CN100392547C High-voltage dc power supply program control system |
| 06/04/2008 | CN100392546C Single chip ballast control with power factor correction |
| 06/04/2008 | CN100392545C Electronic dimmable ballast for high intensity discharge lamp |
| 06/03/2008 | US7383145 Programmable calibration circuit for power supply current sensing and droop loss compensation |
| 06/03/2008 | US7382635 Power supply apparatus, method of controlling the apparatus, and electronic device using the apparatus |
| 06/03/2008 | US7382303 Non-perturbing power supply margin controller |
| 06/03/2008 | US7382180 Reference voltage source and current source circuits |
| 06/03/2008 | US7382179 Voltage reference with enhanced stability |
| 06/03/2008 | US7382178 Systems and methods for minimizing static leakage of an integrated circuit |
| 06/03/2008 | US7382152 I/O interface circuit of integrated circuit |
| 06/03/2008 | US7382116 Semiconductor device configured to control a gate voltage between a threshold voltage and ground |
| 06/03/2008 | US7382115 Apparatus for converting DC power and method of the same |
| 06/03/2008 | US7382114 PFM-PWM DC-DC converter providing DC offset correction to PWM error amplifier and equalizing regulated voltage conditions when transitioning between PFM and PWM modes |
| 06/03/2008 | US7382113 High-efficiency high-voltage difference ratio bi-directional converter |
| 06/03/2008 | US7382112 Methods and devices for input waveform control in switching power supplies |
| 06/03/2008 | US7382108 Charging apparatus and charging current detecting circuit thereof |
| 06/03/2008 | US7382100 Lighting control device having improved long fade off |
| 06/03/2008 | US7382022 Semiconductor device and boost circuit |
| 05/29/2008 | WO2008063461A1 Fuel cell power management module |
| 05/29/2008 | WO2008062419A2 A device that enables plc based smart dimmers to function with no new wires |
| 05/29/2008 | WO2007073316A9 A method and device for controlling of a magnetic flux |
| 05/29/2008 | US20080124059 Constant voltage power supply circuit, constant voltage supplying method, and portable constant voltage power supply device, electric reel, fishing rod supporting tool, and fishing rod holding device that use the same constant voltage power supply circuit |
| 05/29/2008 | US20080123417 Semiconductor device including a high voltage generation circuit and method of a generating high voltage |
| 05/29/2008 | US20080122812 Direct current to direct current converting circuit, display apparatus having the same and method of driving the direct current to direct current converting circuit |
| 05/29/2008 | US20080122528 Stabilized Dc Power Supply Credit |
| 05/29/2008 | US20080122527 Semiconductor integrated circuit device having internal voltage generating circuit |
| 05/29/2008 | US20080122524 Methods And Circuits To Reduce Threshold Voltage Tolerance and Skew In Multi-Threshold Voltage Applications |
| 05/29/2008 | US20080122521 Semiconductor device |
| 05/29/2008 | US20080122519 Method and circuits for regulating threshold voltage in transistor devices |
| 05/29/2008 | US20080122419 Step-down switching regulator |
| 05/29/2008 | US20080122418 Synchronous DC/DC converter |
| 05/29/2008 | US20080122417 Extending the Voltage Operating Range of Boost Regulators |
| 05/29/2008 | US20080122416 Dual Input Prioritized LDO Regulator |
| 05/29/2008 | US20080122415 Voltage regulator for semiconductor memory |
| 05/29/2008 | US20080122414 Power System |
| 05/29/2008 | US20080122413 Method and apparatus for versatile high voltage level detection with relative noise immunity |
| 05/29/2008 | US20080122412 Voltage regulator with loadline based mostly on dynamic current |
| 05/29/2008 | US20080122385 Driving circuit for providing constant current |
| 05/29/2008 | US20080122291 Switching Power Supply Control Circuit, Switching Power Supply Device and Electronic Apparatus Employing the Same |
| 05/28/2008 | EP1925189A1 Method and apparatus for operating very high pressure short arc discharge lamps |
| 05/28/2008 | CN201066789Y Capacitance combined micro PC for passive automatic compensation control |
| 05/28/2008 | CN201066459Y Alarming power controller |
| 05/28/2008 | CN201066458Y Adjustable current source device for load magnetic suspending control circuit |
| 05/28/2008 | CN101189795A Electric power supply control apparatus and semiconductor device |
| 05/28/2008 | CN101188382A Power supply controller and method therefor |
| 05/28/2008 | CN101188356A Protection circuit and its method |
| 05/28/2008 | CN101187819A Structre and method for regulating threshold voltage of circuit |
| 05/28/2008 | CN101187818A Integration circuit and method for providing output voltage actually reference voltage |
| 05/28/2008 | CN101187817A DSP and CPLD based cascade eleven level dynamic voltage restorer control system |
| 05/28/2008 | CN100391312C Electron beam heating temperature control method |
| 05/28/2008 | CN100391077C Electric power supply device |
| 05/28/2008 | CN100390705C Voltage variable processing method of microcontroller |
| 05/28/2008 | CN100390692C Power supply circuit and semiconductor integrated circuit apparatus |
| 05/27/2008 | US7379311 Inrush current control circuit |
| 05/27/2008 | US7379310 Over-voltage protection circuit for a switched mode power supply |
| 05/27/2008 | US7379284 Switching control circuit and self-excited DC-DC converter |
| 05/27/2008 | US7378899 Semiconductor integrated circuit |
| 05/27/2008 | US7378829 Method and system for providing voltage |
| 05/27/2008 | US7378828 DC-DC converter having magnetic feedback |
| 05/27/2008 | US7378827 Analog internal soft-start and clamp circuit for switching regulator |
| 05/27/2008 | US7378826 Methods and circuits for output over-voltage reduction in switching regulators |
| 05/27/2008 | US7378825 DC/DC converter |
| 05/27/2008 | US7378824 Voltage converter capable of avoiding voltage drop occurring in input signal |
| 05/27/2008 | US7378823 Multi-output type DC/DC converter with a constant on time interval in a steady state |
| 05/27/2008 | US7378822 Switching regulator slope compensation generator circuit |
| 05/27/2008 | US7378806 Output short circuit protection for electronic ballasts |
| 05/27/2008 | US7378165 System and method for providing electrical power to an equipment rack using a fuel cell |