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)
07/2003
07/08/2003US6590444 Semiconductor integrated circuit with a down converter for generating an internal voltage
07/08/2003US6590368 Input circuit with function for detecting abnormality in input circuit and control device having the same
07/03/2003WO2003054924A2 Differential current source with active common mode reduction
07/03/2003WO2002084426A3 Voltage regulator
07/03/2003US20030122812 Power module and display device
07/03/2003US20030122760 Circuit arrangement for the voltage supply of a liquid crystal display device
07/03/2003US20030122613 Threshold voltage adjustment scheme for increased output swing
07/03/2003US20030122532 Facility for supplying spare or auxiliary power supply to processor device
07/03/2003US20030122530 Voltage regulator
07/03/2003US20030122529 Power supply circuit
07/03/2003US20030122528 Reactive power compensator
07/02/2003EP1324477A2 Bipolar supply voltage generator and semiconductor device for same
07/02/2003EP1324459A2 Reactive power compensator
07/02/2003EP1324307A2 Circuit for the voltage supply of a liquid crystal display device
07/02/2003EP1324303A2 Power module and display device
07/02/2003EP1324170A1 Circuit with a roughly constant transconductance
07/02/2003EP1323231A2 Controlled self-oscillation modulator and power conversion system using such a modulator
07/02/2003CN2559154Y Digital average current and average temp controlling device
07/02/2003CN1427480A Circuit with basic constant transconductance
07/02/2003CN1427389A Arrangement of circuit for voltage source of liquid crystal display device
07/01/2003US6587051 Power converting apparatus and burglarproof method therefor
07/01/2003US6586986 Circuit for generating internal power voltage in a semiconductor device
07/01/2003US6586958 Voltage converter having switching element with variable substrate potential
07/01/2003US6586919 Voltage-current converter
07/01/2003US6586917 Battery charger shunt regulator with dual feedback control
07/01/2003US6586916 Frequency sensing NMOS voltage regulator
06/2003
06/26/2003WO2003052909A1 Dc-dc converter
06/26/2003WO2003027791A8 Switching power supply
06/26/2003US20030117758 Semiconductor integrated circuit
06/26/2003US20030117251 Controllable transformer
06/26/2003US20030117228 Circuit component and transformer device with controllable impedance and with systems equipped with such devices
06/26/2003US20030117209 Bipolar supply voltage generator and semiconductor device for same
06/26/2003US20030117198 Output circuit and microcomputer
06/26/2003US20030117147 Circuit and method for calibrating resistors for active termination resistance, and memory chip having the circuit
06/26/2003US20030117121 High-side current-sense circuit for precision application
06/26/2003US20030117116 Semiconductor integrated circuit device
06/26/2003US20030117115 Semiconductor integrated circuit device
06/25/2003CN1425962A Over flow protective circuit
06/25/2003CN1425961A High voltage stabilizing circuit and its operation method
06/25/2003CN1112627C Energy-saving circuit of display apparatus and its method
06/24/2003US6583974 Control circuit for eliminating a voltage and current spike
06/24/2003US6583740 Calibrated current source
06/24/2003US6583607 Linear regulator with a selectable output voltage
06/19/2003WO2003050846A2 Selective potting for controlled failure and electronic devices employing the same
06/19/2003US20030112644 Voltage multiplier circuit
06/19/2003US20030112057 Semiconductor device
06/19/2003US20030111987 Low drop-out voltage regulator with power supply rejection boost circuit
06/19/2003US20030111986 Miller compensated nmos low drop-out voltage regulator using variable gain stage
06/19/2003US20030111985 Low drop-out voltage regulator having split power device
06/18/2003CN2556688Y Intelligent low voltage distribution power saver
06/18/2003CN2556687Y Wide amplitude linear voltage-stabilized source special for optical fibre equipment
06/18/2003CN1111866C Method and device for reducing bias current in reference voltage circuit
06/17/2003US6580257 Voltage regulator incorporating a stabilization resistor and a circuit for limiting the output current
06/12/2003WO2003048874A2 4-20 ma interface circuit
06/12/2003US20030107924 Semiconductor device
06/12/2003US20030107429 Current source circuit
06/12/2003US20030107355 DC to DC converter producing output voltage exhibiting rise and fall characteristics independent of load thereon
06/12/2003US20030107354 Power factor correction circuit with a snubber
06/10/2003US6577262 Compander for power control in a ballast
06/10/2003US6577180 Correction system of resistance inaccuracy in an integrated circuit process
06/05/2003WO2003003551A3 Power converter
06/05/2003US20030103778 Power control for a xerographic fusing apparatus
06/05/2003US20030102903 Voltage supply circuit
06/05/2003US20030102853 Complementary electronic system for lowering electric power consumption
06/05/2003US20030102851 Low dropout voltage regulator with non-miller frequency compensation
06/04/2003EP1317044A2 Semiconductor integrated circuit
06/04/2003EP1316855A2 Power control for a xerographic fusing apparatus
06/04/2003EP0948762B1 Voltage regulator circuits and semiconductor circuit devices
06/04/2003EP0904576B1 Power supply circuit
06/04/2003CN2554677Y Multifunction switch power supply module
06/04/2003CN1421929A 半导体集成电路 The semiconductor integrated circuit
06/04/2003CN1421757A Power supply unit and display device equiped with the same unit
06/04/2003CN1110888C Voltage-current converter for high frequency application
06/04/2003CN1110818C Semiconductor integrated circuit device with internal power circuit
06/04/2003CN1110734C Controller of contact welder
06/03/2003US6573746 Impedance control circuit
06/03/2003US6573694 Stable low dropout, low impedance driver for linear regulators
06/03/2003US6573693 Current limiting device and electrical device incorporating the same
06/03/2003US6573690 Feedback controlled power compensation apparatus
06/03/2003CA2248760C Method for monitoring of tap changers by acoustic analysis
05/2003
05/30/2003WO2003044613A1 Controllable transformer
05/30/2003WO2003044612A1 Device with controllable impedance
05/30/2003WO2003044611A2 Method and device for regulation of electrical voltage
05/30/2003WO2003017455A3 Thermally compensated current sensing of intrinsic power converter elements
05/30/2003CA2729421A1 Power conversion using controllable transformers
05/30/2003CA2467886A1 Method and device for regulation of electrical voltage
05/29/2003US20030098741 Semiconductor integrated circuit
05/29/2003US20030098738 Current generator circuit for high-voltage applications
05/29/2003US20030098680 Power supply device and electric appliance employing the same
05/29/2003US20030098674 Wideband regulator with fast transient suppression circuitry
05/28/2003EP1315061A1 Power controller for an electronic circuit, component and device therefor
05/28/2003EP1314081A2 Transient suppression power regulation
05/28/2003EP1062523B1 Power supply circuit
05/28/2003EP0689689B1 Energy saving power control system
05/28/2003CN2553414Y PWM type high frenquency switch power supply constant voltage/constant current controller
05/28/2003CN1421066A Magnetic circuit using switching
05/28/2003CN1420405A 电压调节器 Voltage Regulator
05/28/2003CN1109946C High impedance bias circuit for ac signal amplifiers
05/28/2003CN1109945C Method of monitoring functional capability of tap selector
05/27/2003US6570402 Impedance control circuit
1 ... 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 ... 378