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)
08/2008
08/20/2008CN101246375A Low voltage drop stabilizer for regulating polar point, zero point, polar point and zero point cancellation control
08/20/2008CN101246374A Bootstrap voltage generating circuits
08/20/2008CN100413313C Focus voltage amplifier
08/20/2008CN100413216C Circuit device of monitoring power voltage
08/20/2008CN100413072C Semiconductor integrated circuit device
08/20/2008CN100412741C Switch device driving device and DC/DC current transformer using the same
08/20/2008CN100412740C Source and system which are used to power a removable electric charge
08/20/2008CN100412739C Line frequency switching regulator
08/19/2008US7414897 Internal voltage generator capable of regulating an internal voltage of a semiconductor memory device
08/19/2008US7414868 Switched current power converter with partial converter decoupling for low load conditions
08/19/2008US7414458 Power gating circuit of a signal processing system
08/19/2008US7414457 Bias voltage generating circuit
08/19/2008US7414456 Constant ratio current source
08/19/2008US7414385 Chipset for isolated power supply with new programmable synchronization architecture
08/19/2008US7414384 Series regulator circuit
08/19/2008US7414383 Multi-phase voltage regulator with phases ordered by lowest phase current
08/19/2008US7414373 Discharge lamp driving circuit and method of driving a discharge lamp
08/19/2008US7414372 Dimming ballast control circuit
08/19/2008US7414371 Voltage regulation loop with variable gain control for inverter circuit
08/14/2008WO2008097782A1 Memory device with split power switch and related methods
08/14/2008WO2008097720A2 Digital double-loop output voltage regulation
08/14/2008WO2008096019A1 Device for conversion of direct current into alternating current and for control of the maximum power for solar panels
08/14/2008WO2008060418A3 Switching power supply
08/14/2008WO2008033270A3 Programmable constant power foldback
08/14/2008WO2008030398A3 Circuits and methods for controlling power in a battery operated system
08/14/2008WO2007053811A3 High-win circuit for multi-phase current mode control
08/14/2008US20080195878 Control Scheme for Binary Control of a Performance Parameter
08/14/2008US20080192511 Power Supply System and Apparatus
08/14/2008US20080192398 Semiconductor device and trimming method of the same
08/14/2008US20080191793 Ratioed Feedback Body Voltage Bias Generator
08/14/2008US20080191792 Voltage generating circuit
08/14/2008US20080191791 Semiconductor Integrated Circuit Device
08/14/2008US20080191790 Voltage Regulation System
08/14/2008US20080191789 Method and apparatus for adjusting a power supply of an integrated circuit
08/14/2008US20080191788 Soi mosfet device with adjustable threshold voltage
08/14/2008US20080191783 Symmetric charge pump replica bias detector
08/14/2008US20080191761 Frequency Synthesizer and Charge Pump Circuit Used Therein
08/14/2008US20080191681 Power supply voltage adjusting device
08/14/2008US20080191679 High-Frequency Buck Converter that Includes a Cascode MESFET-MOSFET Power Switch
08/14/2008US20080191678 Switch-mode converter
08/14/2008US20080191677 Electronic Switch Circuit, Converter and Method of Operation
08/14/2008US20080191676 Arrangement for Smoothing the Load Current Supplied to a Load
08/14/2008US20080191675 Power extractor detecting power and voltage changes
08/14/2008US20080191674 Regulator with Automatic Power Output Device Detection
08/14/2008US20080191673 Series regulator circuit
08/14/2008US20080191672 Voltage-stabilizing circuit in power supply apparatus of automobiles
08/14/2008US20080191671 Regulator circuit
08/14/2008US20080191670 Voltage Regulator With Pass Transistors Carrying Different Ratios Of The Total Load Current And Method Of Operation Therefor
08/14/2008US20080191644 Circuit and method for matching current channels
08/13/2008EP1581029B1 Induction heating cooking appliance
08/13/2008CN201100884Y AC voltage stabilizing power
08/13/2008CN101243370A Current limiter circuit
08/13/2008CN101242694A Brightness control circuit and backlight control module
08/13/2008CN101242141A Power supply device and voltage conversion method for efficient and low disperse information
08/13/2008CN101242140A Power control method and circuit and power source device
08/13/2008CN101242100A Fixed current power output control system
08/13/2008CN101241377A Photovoltaic grid-connected circuit topological structure
08/13/2008CN101241376A Intelligent switch power source power detection and control device
08/13/2008CN101241375A Integrated circuit, electronic system and method for regulating voltage for supplying to circuit
08/13/2008CN101241374A Apparatus, system and method for regulating power voltage
08/13/2008CN100411290C Intelligent type power supply and its method
08/13/2008CN100411288C Supply unit and electronic equipment comprising the supply unit
08/13/2008CN100411286C DC-DC converter
08/13/2008CN100410827C PFM control circuit for high efficient changing voltage in broad loading demand
08/12/2008US7412613 Integrated circuit devices that support dynamic voltage scaling of power supply voltages
08/12/2008US7411443 Precision reversed bandgap voltage reference circuits and method
08/12/2008US7411442 Constant current circuit operating independent of temperature
08/12/2008US7411441 Bias circuitry
08/12/2008US7411379 Apparatus and method for over-voltage and over-current protection for a step-up current-mode converter
08/12/2008US7411378 Power factor controller that computes currents without measuring them
08/12/2008US7411377 Adaptive control loop
08/12/2008US7411376 Voltage regulator having overcurrent protection circuit and method manufacturing voltage regulator
08/12/2008US7411375 Apparatus for issuing an electrical output signal
08/12/2008US7411360 Apparatus and method for striking a fluorescent lamp
08/12/2008US7411359 Apparatus and method for providing dimming control of lamps and electrical lighting systems
08/12/2008US7410711 Fuel cell output characteristic estimation apparatus and output characteristic estimation method, fuel cell system and vehicle having the same, and fuel cell output control method and data storage medium
08/07/2008WO2008094051A1 Switching technique for efficient electrical power utilization
08/07/2008WO2008093229A1 Electronic ballast for a high intensity discharge lamp
08/07/2008WO2008014149A3 Prognostic health monitoring in switch-mode power supplies with voltage regulation
08/07/2008US20080187037 Methods and apparatus for calibrating output voltage levels associated with current-integrating summing amplifier
08/07/2008US20080186603 Vehicle mirror device
08/07/2008US20080186302 Display with charge function and display controller thereof
08/07/2008US20080186014 Power array system and method
08/07/2008US20080186007 Power supply switch circuit with current leakage protection
08/07/2008US20080186006 Method and system for communicating filter compensation coefficients for a digital power control system
08/07/2008US20080186005 Dynamic voltage generation device and the usage method thereof
08/07/2008US20080186004 High-Frequency Power MESFET Boost Switching Power Supply
08/07/2008US20080186003 Device for generating internal power supply voltage and method thereof
08/07/2008US20080186002 Temperature dependent voltage source compensation
08/07/2008US20080186001 On-Chip Adaptive Voltage Compensation
08/07/2008DE102008005895A1 Spannungsregler und zugehörige Verfahren Voltage regulators and associated method
08/07/2008DE102006046729A1 Power supply circuit for load in motor vehicle, has sensor arrangement providing temperature measuring signal based on ambient temperature, and control circuit providing control signal based on current and temperature measuring signals
08/07/2008CA2676164A1 Switching technique for efficient electrical power utilization
08/06/2008EP1952215A1 Pre-biased circuit for synchronous rectified power converters
08/06/2008EP1952214A1 Device and method for compensating for voltage drops
08/06/2008EP1952213A2 Buck dc to dc converter and method
08/06/2008CN201097438Y Controllable powerless and harmony wave generator circuit
08/06/2008CN201097249Y Polarization current control device for tuning laser
08/06/2008CN201097248Y Signal measuring device for current constant source
08/06/2008CN201097247Y A standard voltage source circuit