Patents
Sitemap › G05 - Controlling; Regulating › G05F - Systems for regulating electric or magnetic variables › 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
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)
10/2008
10/28/2008US7443151 Fan speed controlling circuit
10/28/2008US7443150 Switching power supply control with phase shift
10/28/2008US7443149 Regulator circuit capable of detecting variations in voltage
10/28/2008US7443148 Constant on-time regulator with increased maximum duty cycle
10/28/2008US7443147 DC-DC converter with step-up and step-down control capable of varying the offset voltage of the PWM triangle
10/28/2008US7443146 Auxiliary turn-on mechanism for reducing conduction loss in body-diode of low side MOSFET of coupled-inductor DC-DC converter
10/28/2008US7443145 Switching regulator
10/28/2008US7443144 Voltage regulation system comprising operating condition detection means
10/28/2008US7443113 Software controlled electronic dimming ballast
10/28/2008US7443106 Circuit with switch-off device for the operation of light sources
10/23/2008WO2008126907A1 Overcurrent protector of load circuit
10/23/2008WO2008125718A1 Voltage sag generating equipment
10/23/2008US20080258805 Semiconductor device having internal power supply voltage generation circuit
10/23/2008US20080258802 Adjustable transistor body bias circuitry
10/23/2008US20080258800 Voltage converter and semiconductor integrated circuit
10/23/2008US20080258771 Semiconductor integrated circuit device
10/23/2008US20080258699 Converter Circuit with Improved Efficiency
10/23/2008US20080258698 Soft start circuit, power suppy unit and electric equipment
10/23/2008US20080258697 Dynamic gate drive voltage adjustment
10/23/2008US20080258696 Series regulator circuit
10/23/2008US20080258263 High Current Steering ESD Protection Zener Diode And Method
10/22/2008EP1983398A1 Resonance field discharge
10/22/2008CN201138743Y Power-supply module of motor protector
10/22/2008CN201138571Y Voltage regulating device
10/22/2008CN101292205A Voltage regulator with low dropout voltage
10/22/2008CN101291558A Light emitting element driver and control method therefor
10/22/2008CN101291069A Photovoltaic parallel-net power generating system realizing on-line capacity enlarging
10/22/2008CN101290712A Output current pumping circuit and remote controller using the same
10/22/2008CN101290527A System, method and apparatus for extracting power from photovoltaic source from electric energy
10/22/2008CN101290526A High voltage bias PMOS current source circuit
10/22/2008CN101290509A Embedded system low-power consumption real time task scheduling method
10/22/2008CN101290073A Electromagnetic switch hydraulic multitandem valve control device
10/22/2008CN100428624C Electricity saving device of full automatic three-phase motor
10/22/2008CN100428103C Automatic power controller
10/22/2008CN100428102C Voltage reference circuit
10/22/2008CN100427991C Head carried night view system
10/21/2008US7441131 MCU with power saving mode
10/21/2008US7440300 Transformerless power conversion circuit for grid-connected power generation systems
10/21/2008US7440297 Fault detection for loss of feeback in forced switching power supplies with power factor correction
10/21/2008US7440294 Power adapter and power supply system using the same
10/21/2008US7439944 Light emitting diode multiphase driver circuit and method
10/21/2008US7439798 Regulator circuit
10/21/2008US7439797 Semiconductor device including a high voltage generation circuit and method of generating a high voltage
10/21/2008US7439796 Current mirror with circuitry that allows for over voltage stress testing
10/21/2008US7439794 Power source circuit
10/21/2008US7439793 Charge pump circuits and methods for the same
10/21/2008US7439721 Constant-on-time power-supply controller and related system and method
10/21/2008US7439720 Constant-peak-current minimum-off-time pulse frequency modulator for switching regulators
10/21/2008US7439719 Switching control circuit with off period adjustment
10/21/2008US7439718 Apparatus and method for high speed voltage regulation
10/21/2008US7439717 Secondary side post regulators
10/21/2008US7439716 DC-DC converter and method
10/21/2008US7439689 Lamp driving device having impedance component detecting abnormal discharge
10/21/2008US7439688 Discharge lamp lighting circuit with power control
10/21/2008US7439635 Output suppressing method of a plurality of dispersed power sources and dispersed power source managing system
10/16/2008WO2008124044A1 Power factor correction by measurement and removal of overtones
10/16/2008WO2008103835A3 Fractional charge pump for step-down dc-dc converter
10/16/2008WO2008086050A3 Electronic circuit for driving a diode load
10/16/2008WO2007126737A3 Constant brightness control for electro-luminescent lamp
10/16/2008US20080253154 Inrush Current Limiter Device and Power Factor Control (Pfc) Circuit Having an Improved Inrush Current Limiter Device
10/16/2008US20080252380 Power Supply System
10/16/2008US20080252364 Reference Voltage Generator for Analog-To-Digital Converter Circuit
10/16/2008US20080252363 Semiconductor Device and Electronic Appliance Using the Same
10/16/2008US20080252362 Negative voltage converter
10/16/2008US20080252281 Switching power supply circuit having soft start circuit
10/16/2008US20080252280 Continuous-time digital controller for high-frequency dc-dc converters
10/16/2008US20080252279 Control circuit for dc converter
10/16/2008US20080252278 System and Method for Controlling a Hysteretic Mode Converter
10/16/2008US20080252277 Digital control switching power-supply device and information processing equipment
10/16/2008US20080252276 Method of Forming a Buck-Boost Mode Power Supply Controller and Structure Therefor
10/16/2008US20080252275 Determining average output current in DC-DC converter
10/16/2008US20080252274 Pseudo Fixed Frequency Switch-Mode DC/DC Voltage Regulator Control Method
10/16/2008US20080252273 Dc/dc converter
10/16/2008US20080252272 Voltage regulator with cotrol of switching elements
10/16/2008US20080252271 Power conversion device
10/16/2008US20080252270 Phase control method and phase control device
10/16/2008US20080252268 Method for actuation, and actuating circuit for a switch in a power factor correction circuit
10/16/2008DE112006002837T5 Verbesserung des Signal-zu-Stör-Verhaltens für eine den Leistungsverlust zu einem Minimum machende Totzeit Improve the signal-to-noise response for a power loss to a minimum dead time solubilising
10/15/2008EP1979798A2 Circuit and method for changing transient response characteristics of a dc/dc converter module
10/15/2008EP1979797A1 Two level current limiting power supply system
10/15/2008CN201134764Y Multifunctional aluminum oxidation power source circuit
10/15/2008CN201134596Y Amplified transmission cable of high-resolution digital video and audio signal
10/15/2008CN201134056Y Constant current source device with energy-saving and over voltage protective functions
10/15/2008CN201134055Y Linear voltage-stabilized power supply
10/15/2008CN101286700A Switching power supply apparatus for fast eliminating oscillation and control method thereof
10/15/2008CN101286697A Signal generating device and related method
10/15/2008CN101286639A Continuously adjustable reactive power compensator with low cost
10/15/2008CN101286075A Adjustable energy supply linear programmed control device
10/15/2008CN100426643C Switch regulator
10/15/2008CN100426604C Actuator power-supply for driving laser diode
10/15/2008CN100426175C Mixed maximum power point-tracing control method of photovoltaic water-raising system
10/15/2008CN100426174C Power supply device having efficient low power standby mode
10/15/2008CN100426173C Switchable linear regulator
10/15/2008CN100426172C Adaptive failure time controller capable of regulating failure time
10/15/2008CN100426171C One cycle control continuous conduction mode PFC boost converter integrated circuit with integrated power switch and boost converter
10/14/2008US7436675 Constant current class 3 lighting system
10/14/2008US7436661 Two-compartment AC adaptor
10/14/2008US7436378 LED-switching controller and LED-switching control method
10/14/2008US7436314 Monitor and circuit arrangement for voltage regulator
10/14/2008US7436248 Circuit for generating identical output currents
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