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)
12/2003
12/04/2003US20030222630 Switch or control device for loaded apparatus
12/04/2003US20030222628 Auxiliary boundary regulator that provides enhanced transient response
12/04/2003US20030222627 Power factor correction with carrier control and input voltage sensing
12/04/2003US20030222600 Power controller
12/04/2003US20030222506 Power supply unit having multiple power supply outputs
12/04/2003US20030221859 Voltage regulators
12/03/2003EP1366402A1 Voltage regulator protected against short-circuits
12/03/2003EP0943124B1 High impedance bias circuit for ac signal amplifiers
12/03/2003CN2590053Y Double transformer chip automatic control AC voltage stabilization apparatus
12/03/2003CN1459923A Reference voltage circuit
12/03/2003CN1459682A Double frequency pulse wave width modulating and voltage stabilizer
12/03/2003CN1129743C Air conditioner
12/02/2003US6657420 Accurate ultra-low current generator
12/02/2003US6657417 Power factor correction with carrier control and input voltage sensing
12/02/2003US6657408 Air conditioner
11/2003
11/27/2003WO2003098703A2 Circuit arrangement for a photovoltaic system
11/27/2003WO2003098367A1 Power supply circuit
11/27/2003WO2003085475A3 Circuit arrangement for regulating voltage
11/27/2003US20030218843 Power supply protection circuit
11/27/2003US20030218497 Semiconductor integrated circuit
11/27/2003US20030218495 Analog bipolar current source
11/27/2003US20030218454 Voltage mode voltage regulator with current mode start-up
11/27/2003US20030218451 Ultra fast and high efficiency inductive coil driver
11/27/2003US20030218450 LDO Voltage regulator having efficient current frequency compensation
11/26/2003EP1365302A1 Low drop-out voltage regulator
11/26/2003CN2588659Y Low Power consumption transistor oscillator for on-chip two-power supply automatic switching
11/26/2003CN2588433Y Microconsumption and low voltage difference pump power source
11/26/2003CN2588432Y Power supply structure for more than one group power voltage used in low power consumption
11/26/2003CN2588431Y Voltage source adopting second-order temp. compensation energy gap reference voltage
11/25/2003US6654264 System for providing a regulated voltage with high current capability and low quiescent current
11/25/2003US6653891 Voltage regulation
11/25/2003US6653824 Continuous feed-forward AC voltage regulator
11/25/2003US6653823 Switch or control device for loaded apparatus
11/20/2003US20030214769 Over-voltage protection circuit
11/20/2003US20030214278 Internal power supply voltage control apparatus having two internal power supply reference voltage generating circuits
11/20/2003US20030214275 Low drop-out regulator having current feedback amplifier and composite feedback loop
11/20/2003US20030214273 Power supply for USB powered wireless communication devices
11/20/2003DE20312116U1 Arc discharge protection system for high-voltage electrical equipment has electrode disk, voltage switching circuit, rectifier and trigger circuit
11/19/2003EP0900469B1 Switched-mode power supply arrangement
11/18/2003US6650524 Power supply circuit with adaptive error detection and an electronic control circuit including the same
11/18/2003US6650179 Integrated error amplifier
11/18/2003US6650175 Device generating a precise reference voltage
11/18/2003US6650100 Bootstrap technique for a multiple mode switching regulator
11/18/2003US6650097 Voltage regulator with reduced power loss
11/18/2003US6650093 Auxiliary boundary regulator that provides enhanced transient response
11/13/2003WO2003093962A2 Altering operating frequency and voltage set point of a circuit in response to the operating temperature and instantaneous operating voltage of the circuit
11/13/2003WO2003093918A1 Current shutdown circuit for active bias circuit having process variation compensation
11/13/2003US20030212916 Semiconductor integrated circuit
11/13/2003US20030211870 LDO regulator with sleep mode
11/13/2003US20030210090 Internal power voltage generating circuit of semiconductor memory device and internal power voltage controlling method thereof
11/12/2003EP1361664A1 LDO regulator with sleep mode
11/12/2003EP1361649A1 Dc-dc converter
11/12/2003CN2586299Y Lamp remote control switch
11/12/2003CN2586192Y Sinusoidal phase angle closed loop controller
11/12/2003CN1455508A Control apparatus of voltage converter
11/12/2003CN1455306A Current-limiting protection device
11/11/2003US6646495 Threshold voltage adjustment scheme for increased output swing
11/11/2003US6646450 Method and apparatus for near losslessly measuring inductor current
11/11/2003US6646429 Current detection device, method of detecting electric current and power supply system using the same
11/06/2003WO2003091817A1 Noise filter circuit
11/06/2003US20030206050 Altering operating frequency and voltage set point of a circuit in response to the operating temperature and instantaneous operating voltage of the circuit
11/06/2003US20030205992 Circuit configuration for generating a controllable output voltage
11/06/2003US20030205936 High-voltage energy regulated conversion circuit
11/05/2003EP0886785B1 Method for monitoring of tap changers by acoustic analysis
11/05/2003CN2585295Y Automatic converting type pressure-adjusting protection device
11/05/2003CN1127196C 混合调节器 Hybrid regulator
11/05/2003CN1127006C Method and device for automatically switching three phase voltage for power saving transformer
11/04/2003US6642768 Voltage-dependent impedance selector for non-linearity compensation
11/04/2003US6642697 Switching regulator with multiple power transistor driving voltages
10/2003
10/30/2003WO2003090450A2 Waveform generator for controlling an electron beam in a cathode ray tube
10/30/2003WO2003090449A2 Focus voltage control arrangement with ultor voltage tracking
10/30/2003WO2003090448A2 Focus voltage amplifier
10/30/2003WO2003090193A1 Focus voltage control arrangement
10/30/2003WO2003090003A1 Universal variable-frequency resonant power supply
10/30/2003WO2003090002A1 Maximum power sensor for photovoltaic system
10/30/2003US20030201758 Voltage regulator with pulse width modulation in dual frequencies
10/29/2003CN1126249C Active filter circuit
10/29/2003CN1126240C Supply unit for electronic machine
10/29/2003CN1126220C Automatic power factor compensation device for high and low voltage power network
10/29/2003CN1126010C Internal power source circuit
10/28/2003US6639778 Fuse protected shunt regulator having improved control characteristics
10/28/2003US6639390 Protection circuit for miller compensated voltage regulators
10/23/2003WO2003088461A1 Method and circuit arrangement for electronic voltage regulation
10/23/2003WO2003088460A2 Soft switching high efficiency flyback converter
10/23/2003WO2003054924A3 Differential current source with active common mode reduction
10/23/2003US20030197588 Voltage regulated circuit with well resistor divider
10/23/2003US20030197551 Potential generating circuit capable of correctly controlling output potential
10/23/2003US20030197543 Load-driving semiconductor device
10/23/2003US20030197492 Frequency sesing NMOS voltage regulator
10/23/2003US20030197479 Focus voltage control arrangement
10/22/2003EP1354255A1 Device for controlling a circuit generating reference voltages
10/22/2003EP1354254A1 Power converter control for automatic maximum power point tracking
10/22/2003CN1451201A Improved efficiency of a multiphase switching power supply during low power mode
10/22/2003CN1450707A Off-line type sectionless voltage-stabilized UPS system
10/22/2003CN1450431A Compensation circuit and method for diode voltage drop of power supply output terminal
10/22/2003CN1450430A Off-line type section-free modulation voltage stabilizer
10/21/2003US6636451 Semiconductor memory device internal voltage generator and internal voltage generating method
10/21/2003US6636023 Combined linear and switching voltage regulator
10/16/2003WO2003085475A2 Circuit arrangement for regulating voltage
10/16/2003WO2003038977A3 Constant-voltage supply circuit for consumers connected to at least one line
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