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)
01/2006
01/12/2006US20060006846 Control apparatus for internal combustion engine-driven vehicle having power supply unit
01/12/2006US20060006819 Circuit arrangement having a full bridge with switching load relief for operating lamps
01/12/2006US20060006818 Process for operating a discharge lamp
01/12/2006US20060006817 AC powered self organizing wireless node
01/12/2006US20060006816 Resonant inverter including feed back circuit having phase compensator and controller
01/12/2006US20060006815 Control system for a resonant inverter with a self-oscillating driver
01/12/2006US20060006814 System and method for automated filament testing of gas discharge lamps
01/12/2006DE102004029966A1 Verpolungsschutzschaltung mit niedrigem Spannungsabfall Reverse connection protecting circuit low voltage drop
01/12/2006CA2572335A1 Switched constant current driving and control circuit
01/11/2006CN1720492A Voltage regulator of vehicle alternator
01/11/2006CN1719684A Voltage change compensator
01/11/2006CN1236654C Circuit for exciting cold cathode fluorescent lamp
01/11/2006CN1236538C Supply unit and electronic apparatus
01/10/2006US6985095 Current supply circuit
01/10/2006US6985027 Voltage step down circuit with reduced leakage current
01/10/2006US6985026 Semiconductor integrated circuit device and cellular terminal using the same
01/10/2006US6985025 System for adjusting a power supply level of a digital processing component and method of operating the same
01/10/2006US6985023 Selective switching of a transistor's back gate potential
01/10/2006US6984970 Conditioning circuit for a power supply at the maximum power point, a solar generator, and a conditioning method
01/10/2006US6984969 High efficiency high speed low noise regulator
01/10/2006US6984968 Switching power supply apparatus for outputting variable voltage
01/10/2006US6984967 Multi-mode switching regulator
01/10/2006US6984966 Switching power supply
01/10/2006US6984965 Factorized power architecture with point of load sine amplitude converters
01/10/2006US6984964 Soft-switching three-phase power factor correction converter
01/10/2006US6984963 Device for the correction of the power factor in power supply units with forced switching operating in transition mode
01/10/2006US6984962 Device and a method for voltage control in an electric transmission network
01/10/2006US6984955 Motor control device
01/10/2006US6984944 Controlling device for use with exterior landscape lighting assemblies
01/10/2006US6984943 Method and apparatus for lighting high pressure discharge lamp, high pressure discharge lamp apparatus, and projection-type image display apparatus
01/05/2006WO2006002042A2 Current control for inductive weld loads
01/05/2006WO2005039029A3 Total feed forward switching power supply control
01/05/2006US20060002155 System and method for input current shaping in a power converter
01/05/2006US20060001480 Stress tolerant high voltage back-to-back switch
01/05/2006US20060001474 Method of controlling a charge pump generator and a related charge pump generator
01/05/2006US20060001411 DC converter with halt mode setting means
01/05/2006US20060001410 Power supply apparatus using synchronous rectified step-down converter
01/05/2006US20060001409 DC/DC converter
01/05/2006US20060001408 Digital calibration with lossless current sensing in a multiphase switched power converter
01/05/2006US20060001407 Voltage regulator
01/05/2006US20060001387 Theatrical lighting control network
01/05/2006US20060001321 Voltage supply circuit and method for generating a supply voltage
01/05/2006DE102004028798A1 Schaltung mit Abschalteinrichtung zum Betrieb von Lichtquellen Circuit with switch-off device for operating light sources
01/05/2006DE10045015B4 Vorrichtung und Verfahren zur Regelung einer SLIC-Versorgungsspannung Apparatus and method for controlling a SLIC supply voltage
01/04/2006EP1612909A1 Power supply integrated circuit with feedback control
01/04/2006EP1612635A1 Short-circuit detection with current-mirror
01/04/2006CN2750547Y Output matching controller for external battery pack of portable digital equipment
01/04/2006CN2750356Y Linear voltage-stabilized power supply
01/04/2006CN2750355Y Full-automatic energy-saving AC voltage stabilizer
01/04/2006CN1717644A Adaptive current limiter for wireless modem
01/04/2006CN1717144A Digital driving system for cold cathode fluorescent lamp
01/04/2006CN1716747A DC-DC converter
01/04/2006CN1716745A DC/DC converter
01/04/2006CN1716743A Method of forming a self-gated transistor and structure therefor
01/04/2006CN1716740A Step-up / step-down circuit
01/04/2006CN1716739A DC voltage converter and method for converting a DC voltage
01/04/2006CN1716142A Power supply apparatus provided with overcurrent protection function
01/04/2006CN1716141A Compensating circuit for voltage drop of cooking machine
01/04/2006CN1716074A Light emitting apparatus generating white light by mixing of light of a plurality of oscillation wavelengths
01/03/2006US6983383 Method for providing priority to an ac adaptor if the input to the ac adaptor is above a predetermined value even if the power supply via an interface is present
01/03/2006US6982888 Unregulated electrical converter
01/03/2006US6982885 Current distribution circuit
01/03/2006US6982591 Method and circuit for compensating for tunneling current
01/03/2006US6982590 Bias current generating circuit, laser diode driving circuit, and optical communication transmitter
01/03/2006US6982548 Switched mode power supply with delay-compensated current mode control
01/03/2006US6982547 Power factor controlled regulator with variable output voltage feedback
01/03/2006US6982546 Hybrid reactive power compensation device
01/03/2006US6982528 Thermal protection for lamp ballasts
01/03/2006US6982500 Power-down scheme for an on-die voltage differentiator design
12/2005
12/29/2005WO2005124998A1 Current-mode instrumentation amplifier gain error correction circuitry
12/29/2005WO2005124997A1 Current-mode instrumentation amplifier
12/29/2005WO2005124499A1 Precision chopper-stabilized current mirror
12/29/2005WO2005124498A1 Output power factor control of pulse-width modulated inverter
12/29/2005WO2005124497A2 Method and apparatus for brightness control of indication lights
12/29/2005WO2005124496A2 Method and system for enhanced dimming resolution in a light ballast through use of multiple control frequencies
12/29/2005WO2005124480A1 Control scheme for binary control of a performance parameter
12/29/2005WO2005124377A1 Mosfet drive circuit, programmable power supply and semiconductor test apparatus
12/29/2005WO2005062990A3 Replica biased voltage regulator
12/29/2005US20050286278 Method and apparatus for switched-mode power conversion at radio frequencies
12/29/2005US20050286271 Point of load sine amplitude converters and methods
12/29/2005US20050285585 DC-DC converter
12/29/2005US20050285584 Power supply regulator with digital control
12/29/2005US20050285583 High frequency partial boost power factor correction control circuit and method
12/29/2005US20050285582 PWM circuit control method
12/29/2005US20050285581 Interface circuit of a Hall IC and system for using them
12/29/2005US20050285580 Current sense circuit and method for a DC-to-DC converter
12/29/2005US20050285579 Control circuit of DC-DC converter and its control method
12/29/2005US20050285578 Supply switch circuit for implementing a switchable on-chip high voltage supply
12/29/2005US20050285577 Step-up / step-down circuit
12/29/2005US20050285575 Power supply integrated circuit with feedback control
12/29/2005US20050285547 Light emitting diode based products
12/29/2005DE112004000145T5 Steuer-IC für Dimm-Vorschaltgerät mit Flackerunterdrückungsschaltung Control IC for dimming ballast with Flackerunterdrückungsschaltung
12/29/2005DE102005025902A1 Stromversorgungsvorrichtung und Fahrzeugleuchte Power supply device and vehicle lamp
12/29/2005CA2568657A1 Output power factor control of pulse-width modulated inverter
12/28/2005EP1610206A2 System and method for performing power sequencing
12/28/2005EP1610198A1 Circuit arrangement for the selective generation of an analog current or analog voltage
12/28/2005EP1609034A2 Chalcogenide glass constant current device, and its method of fabrication and operation
12/28/2005CN1713498A DC-DC converting method and apparatus
12/28/2005CN1713095A PWM circuit control method
12/28/2005CN1712981A Interface circuit of a hall ic and system for using them