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)
10/2005
10/20/2005US20050231182 Process device with switching power supply
10/20/2005US20050231181 Buck converter with low loss current measurement
10/20/2005US20050231180 Constant voltage circuit
10/20/2005US20050231179 Capacitive load driving circuit, droplet ejection device, droplet ejection unit and inkjet head driving circuit
10/20/2005US20050231177 Power supply device and switching power supply device
10/20/2005US20050231176 Conversion circuit for discriminating sourcing current and sinking current
10/20/2005US20050231175 Power supply apparatus
10/20/2005US20050231137 Focus voltage amplifier
10/20/2005US20050231132 High intensity discharge strobe lamp assembly and method for producing attenuated-EMI strobe illumination
10/20/2005US20050231127 Boost controller capable of step-up ratio control
10/20/2005US20050231125 Lighting installation with regulation of light emission devices
10/19/2005EP1587208A1 Buck converter with low loss current measurement
10/19/2005CN2735627Y 分布式连续无功发生器 Distributed Continuous Var Generator
10/19/2005CN2735416Y Energy-saving type exactitude purifying AC voltage-stabilized power supply
10/19/2005CN2734081Y Controller of electric rice cooker with cake steaming function
10/19/2005CN1685592A System and method for providing digital pulse width modulation
10/19/2005CN1685437A System for controlling mode changes in a voltage down-converter
10/19/2005CN1684351A Voltage detection circuit, power supply unit and semiconductor device
10/19/2005CN1684015A High efficiency constant current source
10/19/2005CN1223914C 参考电压电路 Reference voltage circuit
10/18/2005USRE38837 Efficient power transfer in electronic ballast
10/18/2005US6956429 Low dropout regulator using gate modulated diode
10/18/2005US6956428 Base current compensation for a bipolar transistor current mirror circuit
10/18/2005US6956361 DC/DC converter employing synchronous rectification
10/18/2005US6956360 Switching power supply controller and switching power supply
10/18/2005US6956337 Temperature-to-color converter and conversion method
10/13/2005WO2005094300A2 System and method for driving a plurality of loads
10/13/2005WO2005075234A3 Regenerative motor propulsion system
10/13/2005WO2005067382A3 Isolator for controlled power supply
10/13/2005WO2005006377A3 A protective and measure device for multiple cold cathode flourescent lamps
10/13/2005US20050226019 Methods and devices for low noise current source with dynamic power distribution
10/13/2005US20050226017 Inverter
10/13/2005US20050225380 High bandwidth, high PSRR, low dropout voltage regulator
10/13/2005US20050225378 Bandgap reference circuit
10/13/2005US20050225377 Boost circuit and semiconductor integrated circuit
10/13/2005US20050225360 Voltage detection circuit, power supply unit and semiconductor device
10/13/2005US20050225307 Current sensing circuit for a multi-phase DC-DC converter
10/13/2005US20050225306 Low drop-out voltage regulator
10/13/2005US20050225264 LED lamp with color and brightness controller for use in wet, electrically hazardous bathing environments
10/13/2005US20050225259 LED buck regulator control IC
10/13/2005DE102004014478A1 Power pack for producing a voltage comprises a control section for controlling a generator for automatically producing a variable voltage depending on control parameters, and an interface for feeding parameters to the control section
10/13/2005DE102004014192A1 Electrical power controller to supply LED lighting elements uses active measurement of supply current used by a controller
10/12/2005EP1584003A1 Power supply circuit in addition to communications equipment comprising a power supply circuit
10/12/2005EP1508078A4 Voltage regulator with dynamically boosted bias current
10/12/2005CN1682172A Interface for shunt voltage regulator in a contactless smartcard
10/12/2005CN1681191A Boost circuit and semiconductor integrated circuit
10/12/2005CN1681139A Light-emitting element driving circuit
10/12/2005CN1223074C Fault-tolerance dynamic current sharing method and device
10/11/2005US6954054 Total feed forward switching power supply control
10/11/2005US6954053 Interface for shunt voltage regulator in a contactless smartcard
10/11/2005CA2273167C Apparatus for and method of evenly distributing an electrical load across an n-phase power distribution network
10/06/2005WO2005092061A2 Pre-regulator with reverse current blocking
10/06/2005WO2005091943A2 Methods for electrically isolating a portable electrically-operated device and converter module for portable electrically-operated device
10/06/2005WO2005062777A3 Digital control circuit for switching power supply with pattern generator
10/06/2005US20050219902 Voltage booster
10/06/2005US20050219878 Boost circuit capable of step-up ratio control
10/06/2005US20050219869 Power factor correction circuit
10/06/2005US20050218971 System and method for an auto-tracking, self-calibrating voltage generator
10/06/2005US20050218908 Method to include delta-i noise on chip using lossy transmission line representation for the power mesh
10/06/2005US20050218878 Enabling circuit for avoiding negative voltage transients
10/06/2005US20050218877 Current mode switching regulator with predetermined on time
10/06/2005US20050218876 Reversible buck-boost chopper circuit, and inverter circuit with the same
10/06/2005US20050218875 Portable electronic device capable of supplying a predetermined voltage output
10/06/2005US20050218874 Switch mode power converter
10/06/2005US20050218873 Switching regulator with reduced conducted emissions
10/06/2005US20050218872 On-chip power supply interface with load-independent current demand
10/06/2005US20050218871 Dynamic voltage scaling for portable devices
10/06/2005US20050218835 Light-emitting element driving circuit
10/06/2005US20050218834 LED signal light
10/06/2005DE102005012637A1 Elektrische Energieversorgungsvorrichtung mit Eingangsschalterkreis Electrical power supply device with input switching circuit
10/06/2005DE102004023458A1 Vorrichtung zum Umformen in Gleichspannung durch ein Pulsbreitenmodulationssignal Device for forming into DC voltage by a pulse width modulation signal
10/06/2005DE102004011458A1 Circuit for producing a controlled operating voltage for a data carrier such as a contactless chip card has charge pump circuit and monitor of output voltage
10/05/2005EP1581844A2 A method and voltage feedback circuitry for improving the performance of apfc converters
10/05/2005CN2731809Y Taxi system power controller
10/05/2005CN2731512Y Improved structure in pressure controller
10/05/2005CN1678966A Capacitively coupled current boost circuitry for integrated voltage regulator
10/05/2005CN1677817A Boost circuit capable of step-up ratio control
10/05/2005CN1677816A Boost controller capable of step-up ratio control
10/05/2005CN1677815A Reversible back-boost chopper circuit, and inverter circuit with the same
10/05/2005CN1677814A Low audible noise power supply controller and method therefor
10/05/2005CN1677813A Device for controlling drive voltage supplied to multiple loads
10/05/2005CN1677812A Power factor correction circuit
10/05/2005CN1677300A Switching regulator control circuit, switching regulator and switching regulator control method
10/05/2005CN1677299A Low dropout voltage regulator
10/04/2005US6952596 Active subscriber information module
10/04/2005US6952357 Power supply control apparatus
10/04/2005US6952334 Linear regulator with overcurrent protection
10/04/2005US6952129 Four-phase dual pumping circuit
10/04/2005US6952093 Adaptive small-signal compensation for switching regulators
10/04/2005US6952091 Integrated low dropout linear voltage regulator with improved current limiting
09/2005
09/29/2005WO2005091485A1 Inverter system
09/29/2005WO2005091358A1 Semiconductor integrated circuit device and switching power source device using the same
09/29/2005WO2005091101A1 Dynamic reactive compensation system and method
09/29/2005WO2005091100A1 Low drop-out dc voltage regulator
09/29/2005WO2005089302A2 Constant current class 3 lighting system
09/29/2005WO2005050425B1 Method and device for regulating a voltage supply to a semiconductor device
09/29/2005WO2004081617A3 Chalcogenide glass constant current device, and its method of fabrication and operation
09/29/2005US20050216102 Power supply circuit for physical quantity sensor
09/29/2005US20050213688 Contactless data carrier with current demodulation
09/29/2005US20050213276 DC regulated power supply comprising
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