Patents
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)
07/2005
07/06/2005CN1209860C Stabilized current supply for semiconductor laser
07/06/2005CN1209691C Prechargeable voltage stabilizing circuit and relevant method
07/05/2005US6914548 Programmable DC voltage generator
07/05/2005US6914476 High bandwidth, high PSRR, low dropout voltage regulator
07/05/2005US6914421 DC regulated power supply
07/05/2005US6914182 Method of installing solar cell modules, and solar cell module
06/2005
06/30/2005US20050144437 System and method for assigning an identity to an intelligent electronic device
06/30/2005US20050143045 LDO regulator with sleep mode
06/30/2005US20050141249 Current distribution circuit
06/30/2005US20050141167 Operating device for inductive electrical actuators
06/30/2005US20050141156 Current distribution circuit
06/30/2005US20050141152 Short-circuit protective circuit
06/30/2005US20050140430 Programmable AC current booster for faster edge-rate output in high speed applications
06/30/2005US20050140429 Load sensing voltage regulator for pll/dll architectures
06/30/2005US20050140428 Low voltage cmos bandgap reference
06/30/2005US20050140404 Power-up circuit in semiconductor memory device
06/30/2005US20050140350 Circuit for supplying constant voltage
06/30/2005US20050140348 Current distribution circuit
06/30/2005US20050140347 Time-sharing current sense circuit for a multi-phase converter
06/30/2005US20050140344 Power limiting time delay circuit
06/30/2005US20050140343 Intelligent power supply and control method thereof
06/30/2005US20050140315 Current control device for driving LED devices
06/30/2005DE10353476A1 Motor vehicle controller, has switch unit with two transistors to turn on on-load switch based on control signal and when clamping diode is switched on due to vehicle ignition to allow supply of battery voltage to circuit unit
06/29/2005EP1547088A1 System for controlling mode changes in a voltage down-converter
06/29/2005CN1633630A Low drop-out voltage regulator
06/29/2005CN1632706A Single current bias circuit of current source
06/29/2005CN1208702C Voltage stabilizing circuit with current mirror to compensate current and prevent initial overcurrent and its control method
06/28/2005US6912147 Chalcogenide glass constant current device, and its method of fabrication and operation
06/28/2005US6911848 Low-loss transformer-coupled gate driver
06/28/2005US6911806 DC to DC converter producing output voltage exhibiting rise and fall characteristics independent of load thereon
06/23/2005WO2005057767A1 An apparatus for reducing the power consumption of a pfc-pwm power converter
06/23/2005WO2005057313A1 Improved bandgap voltage reference
06/23/2005US20050136862 Circuit and method for setting the operation point of a BGR circuit
06/23/2005US20050135131 Power circuit applying AC voltage and DC voltage to respective terminals of a capacitor, for outputting AC voltage shifted in accordance with the DC voltage
06/23/2005US20050134760 Backlight of liquid crystal display device
06/23/2005US20050134537 Current amplifying circuit with stabilized output voltage and liquid crystal display including the same
06/23/2005US20050134367 Ground difference compensating system
06/23/2005US20050134362 Semiconductor device equipped with a voltage step-up circuit
06/23/2005US20050134252 Voltage regulator for use in portable applications
06/23/2005US20050134248 Methods and systems for load bank control and operation
06/23/2005US20050134246 Voltage generation circuit
06/23/2005US20050134245 Digital control circuit for switching power supply with pattern generator
06/23/2005US20050134242 Replica biased voltage regulator
06/23/2005US20050134240 ESD bonding pad
06/23/2005US20050134239 Multiple input redundant power system
06/23/2005US20050134195 Lighting control apparatus
06/23/2005US20050133778 Chalcogenide glass constant current device, and its method of fabrication and operation
06/23/2005US20050132765 Current cutoff circuit and electric steering wheel lock
06/23/2005DE19983197B4 Verfahren und Einrichtung für ein schnelles Programmieren während der Herstellung und für In-System-Schreiboperationen bei niedriger Spannung für ein programmierbares logisches Bauelement Method and apparatus for a fast programming during manufacturing and for in-system write operations at a low voltage for a programmable logic device
06/23/2005DE10102129B4 Schaltungsanordnung zur Erzeugung einer Referenzspannung Circuit arrangement for generating a reference voltage
06/22/2005EP1428093A4 Amplifier having a variable power factor
06/22/2005CN1630444A Light source control system
06/22/2005CN1630186A Voltage generation circuit
06/22/2005CN1629761A Current cutoff circuit and electric steering wheel lock
06/22/2005CN1629760A Current amplifying circuit with stabilized output voltage and liquid crystal display including the same
06/21/2005US6909204 System for sequencing a first node voltage and a second node voltage
06/21/2005CA2239071C Apparatus and method for interline power flow control
06/16/2005WO2005055405A1 Power circuit and method of rising output voltage of power circuit
06/16/2005WO2005055404A2 Adaptive delay control circuit for switched mode power supply
06/16/2005WO2004025390A3 Temperature-compensated current reference circuit
06/16/2005US20050131583 System and method for federated security in a energy management system
06/16/2005US20050128773 Apparatus for reducing the power consumption of a PFC-PWM power converter
06/16/2005US20050127988 Current source apparatus, light-emitting-device apparatus and digital-analog converting apparatus
06/16/2005US20050127984 Power supply circuit having a plurality of voltage conversion circuits
06/16/2005US20050127983 Voltage booster device having voltage-suppressing circuit
06/16/2005US20050127982 Charge pump circuit with a brief settling time and high output voltage regulation precision
06/16/2005US20050127979 Active ORing controller for redundant power systems
06/16/2005US20050127968 Current supply circuit and method for supplying current to a load
06/16/2005US20050127921 Voltage detecting circuit
06/16/2005US20050127889 Reference power supply circuit for semiconductor device
06/16/2005US20050127887 DC-DC converter
06/16/2005US20050127885 Regulator with variable capacitor for stability compensation
06/16/2005US20050127884 System and method for power distribution
06/16/2005US20050127883 Switching power supply unit and electronic apparatus having display
06/16/2005US20050127882 Switching circuit for master-slave feeding mode of low voltage power supply
06/16/2005US20050127881 Power-supply device and hard disk drive using same
06/16/2005US20050127847 Digital-dimming control method and module for dimming operation of a cold cathode fluorescent lamp
06/15/2005EP1542333A2 A switching circuit for master-slave feeding mode of low voltage power supply
06/15/2005EP1540439A1 Closed loop current control circuit and method thereof
06/15/2005CN1627618A Voltage booster device having voltage-suppressing circuit
06/15/2005CN1627617A Power source appts. and portable device using same
06/15/2005CN1627616A 电源电路 Power circuit
06/15/2005CN1627593A Switching circuit for low voltage power supply in master-slave power supply mode
06/15/2005CN1627225A Method for tracing maximum power for solar power system and equipment
06/15/2005CN1627223A Current drive circuit reducing VDS dependency
06/15/2005CN1627222A Voltage supplying equipment
06/15/2005CN1627221A Method for adjusting output voltage of fuel cell and adjusting device used
06/14/2005US6907381 System for aiding the preparation of operation and maintenance plans for a power-generation installation
06/14/2005US6906902 Semiconductor integrated circuit
06/14/2005US6906583 Metal oxide semiconductor field effect transistor (MOSFET) cascode current mirror
06/14/2005US6906582 Circuit voltage regulation
06/14/2005US6906579 Optimal inductor management
06/14/2005US6906576 High precision digital-to-analog converter with optimized power consumption
06/14/2005US6906497 Enabling circuit for avoiding negative voltage transients
06/14/2005US6906431 Wind power system for Delivering constant apparent power
06/14/2005CA2404197C Magnetic circuit using switching
06/09/2005WO2005052772A2 Tracking soft start circuit
06/09/2005WO2005052716A1 Transcient over-voltage protection
06/09/2005WO2005008353A3 Method and apparatus for current limitation in voltage regulators
06/09/2005WO2004072754A3 Power supply control unit