| 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) |
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| 08/26/2004 | US20040164718 Automatic power factor correction using power measurement chip |
| 08/26/2004 | DE10306347A1 Controlling supply of power from AC supply to two consumers in plasma process, by adjusting supplied power if actual power deviates from set value |
| 08/25/2004 | EP1449043A1 Controllable transformer |
| 08/25/2004 | CN1523731A Power feeding equipment of non-contact card |
| 08/25/2004 | CN1522630A Electric cooker power-off compensation circuit and breaking compensation process |
| 08/25/2004 | CN1164037C Improved apparatus for current pulse generation in voltage reducing converter |
| 08/24/2004 | US6782513 High power factor integrated controlled ferroresonant constant current source |
| 08/24/2004 | US6781891 Half power supply voltage generator and semiconductor memory device using the same |
| 08/24/2004 | US6781806 On-vehicle electronic control device |
| 08/24/2004 | US6781443 Potential generating circuit capable of correctly controlling output potential |
| 08/24/2004 | US6781439 Memory device pump circuit with two booster circuits |
| 08/24/2004 | US6781329 Methods and apparatus for illumination of liquids |
| 08/19/2004 | US20040160277 Voltage-to-current converter |
| 08/19/2004 | US20040160252 Circuit arrangement and method for producing a pulse width modulated signal |
| 08/19/2004 | US20040159102 Photovoltaic power generating apparatus, method of producing same and photovoltaic power generating system |
| 08/18/2004 | EP1446708A2 Method and device for regulation of electrical voltage |
| 08/18/2004 | CN2634518Y Voltage compensation device capable of avoiding thyrister direct path |
| 08/18/2004 | CN2634517Y Inductive voltage stabilizer |
| 08/18/2004 | CN1521941A Three-phase half-wave controllable rectification and voltage stabilization type electronic regulator |
| 08/18/2004 | CN1521584A Automatic adjustment system for mismatch of source current and sink current |
| 08/18/2004 | CN1162955C Current source device for latching detection |
| 08/18/2004 | CN1162878C Method and apparatus for controlling electromagnetic valve in industrial vehicle |
| 08/17/2004 | US6778008 Process-compensated CMOS current reference |
| 08/17/2004 | US6778007 Internal power voltage generating circuit |
| 08/17/2004 | US6778005 High PSRR current source |
| 08/17/2004 | US6777920 Internal power-supply potential generating circuit |
| 08/17/2004 | US6777891 Methods and apparatus for controlling devices in a networked lighting system |
| 08/12/2004 | WO2004068253A1 Power supply circuit in addition to communications equipment comprising a power supply circuit |
| 08/12/2004 | WO2004052073A3 Optimal feeder design in distribution system planning |
| 08/12/2004 | US20040157506 Power generation apparatus and its control method |
| 08/12/2004 | US20040155701 Internal voltage generator of semiconductor device comprising characteristic controller |
| 08/12/2004 | US20040155691 Step-up circuits |
| 08/12/2004 | US20040155662 Circuit arrangement for controlling and detecting the load current through a load |
| 08/12/2004 | US20040155640 Output regulator system and method |
| 08/12/2004 | US20040155636 Semiconductor integrated circuit device |
| 08/12/2004 | US20040155635 Stabilized power supply-use device, and switching power supply and electronic device using the same |
| 08/12/2004 | US20040155633 Hybrid reactive power compensation device |
| 08/12/2004 | US20040155609 Data delivery track |
| 08/12/2004 | DE19826735B4 Stromversorgungsschaltung Power supply circuit |
| 08/11/2004 | EP1445678A1 Voltage to current converter |
| 08/11/2004 | EP1444771A2 Distributed architecture control system for static power inverters |
| 08/11/2004 | EP1444564A1 Method for regulating the power supply of a number of field devices |
| 08/11/2004 | EP1287369B1 System and method for diagnosing fault conditions associated with powering an electrical load |
| 08/11/2004 | CN1520015A Device for stabilovolt power source and switching power source device and electronic instrument using such device |
| 08/11/2004 | CN1162055C Power control apparatus for lighting system |
| 08/11/2004 | CN1162053C Energy saving lighting controller |
| 08/11/2004 | CN1161878C Serially connected witching voltage regulator for motorcycle |
| 08/11/2004 | CN1161753C Adaptive low-noise current generator and method |
| 08/11/2004 | CN1161678C Solar generating device |
| 08/10/2004 | US6775114 Electronic drive control apparatus |
| 08/10/2004 | US6775112 Apparatus and method for improving ESD and transient immunity in shunt regulators |
| 08/10/2004 | US6774836 Method for delta-noise reduction |
| 08/10/2004 | US6774713 Circuit for producing a reference voltage for transistors set to a standby state |
| 08/10/2004 | US6774712 Internal voltage source generator in semiconductor memory device |
| 08/10/2004 | US6774703 Semiconductor device |
| 08/10/2004 | US6774507 Reliable DC power supply |
| 08/10/2004 | US6772784 Proportional pressure regulator having positive and negative pressure delivery capability |
| 08/05/2004 | WO2004066675A2 Dimming ballast control ic with flash suppression circuit |
| 08/05/2004 | WO2004066479A1 Electrical converter for converting electrical power |
| 08/05/2004 | WO2004066050A1 Power management system |
| 08/05/2004 | WO2003079172A3 A power-down scheme for an integrated circuit |
| 08/05/2004 | US20040150466 Current mirror circuit and current source circuit |
| 08/05/2004 | US20040150382 Voltage regulator and semiconductor integrated circuit |
| 08/05/2004 | US20040150380 Control of a power factor corrected switching power supply |
| 08/05/2004 | DE19961500B4 Konstantspannungsschaltung Constant voltage circuit |
| 08/05/2004 | DE19748031B4 Integrierte Halbleiterschaltungsvorrichtung mit einer taktfrequenzinvarianten Spannungsheruntertransformierschaltung A semiconductor integrated circuit device having a taktfrequenzinvarianten Spannungsheruntertransformierschaltung |
| 08/05/2004 | DE10301673A1 Spannungsversorgungsschaltung sowie Kommunikationsanlage mit Spannungsversorgungsschaltung Power supply circuit and communication system with power supply circuit |
| 08/05/2004 | DE10301501A1 Schaltungsanordnung und Verfahren zur Erzeugung eines Pulsweiten-modulierten Signals Circuit arrangement and method for generating a pulse-width-modulated signal |
| 08/04/2004 | EP1442511A1 Method and apparatus for near losslessly measuring inductor current |
| 08/04/2004 | EP1337754B1 Wind energy turbine and wind farm consisting of a plurality of wind energy turbines |
| 08/04/2004 | CN2631116Y Portable energy-saving switch power source |
| 08/04/2004 | CN1518197A Power factor correction circuit within broad voltage range |
| 08/04/2004 | CN1518107A Semiconductor device and IC card carried the device |
| 08/03/2004 | US6771119 Active power filter for isolating electrically noisy load from low noise power supply |
| 08/03/2004 | US6771118 System and method for reducing a leakage current associated with an integrated circuit |
| 08/03/2004 | US6771117 Semiconductor device less susceptible to variation in threshold voltage |
| 08/03/2004 | US6771115 Internal voltage generating circuit with variable reference voltage |
| 08/03/2004 | US6771053 Buffered configurable nonvolatile programmable digital potentiometer |
| 07/29/2004 | WO2004064232A2 Voltage supply circuit and method for generating a supply voltage |
| 07/29/2004 | WO2004063865A2 A reconfigurable topology for switching and linear voltage regulators |
| 07/29/2004 | US20040148132 System for aiding the preparation of operation and maintenance plans for a power generation installation |
| 07/29/2004 | US20040145955 Semiconductor device |
| 07/29/2004 | US20040145925 Voltage conversion circuit, semiconductor integrated circuit device, and portable terminal |
| 07/29/2004 | US20040145917 Integrated power supply circuit for simplified boad design |
| 07/29/2004 | US20040145409 Current output circuit |
| 07/29/2004 | US20040145358 Method and apparatus for minimizing power dissipation in series connected voltage regulators |
| 07/29/2004 | DE4221430B4 Bezugsspannungsschaltung mit schnellem Hochfahren der Leistung ausgehend von einem Bereitschaftszustand mit niedriger Leistung Reference voltage circuit with a fast ramp-up of power from a standby state with low power |
| 07/29/2004 | DE202004008267U1 Inverter circuit with power factor corrector, generating high voltage (HV) power signal to supply load, e.g. for LCDs used in electronic appliances, computers, etc., containing power source, electromagnetic interference filter, rectifier |
| 07/28/2004 | EP1440503A1 Dual input ac/dc/battery operated power supply |
| 07/28/2004 | CN2629086Y Farm machinery vehicle instrument electric appliances automatic protecting power supply stablizing device |
| 07/28/2004 | CN2629085Y DC, stablized voltage and stablized current variable voltage and current electric power supply |
| 07/28/2004 | CN1515973A Reference voltage generation circuit and reference current generation circuit |
| 07/28/2004 | CN1159632C Constant current and voltage regulator and charger using said regulator |
| 07/27/2004 | US6768393 Circuit and method for calibrating resistors for active termination resistance, and memory chip having the circuit |
| 07/27/2004 | US6768371 Stable floating gate voltage reference using interconnected current-to-voltage and voltage-to-current converters |
| 07/27/2004 | US6768370 Internal voltage step-down circuit |
| 07/22/2004 | US20040140846 Circuit and method for providing an auto-off capability for a wireless transmitter |
| 07/22/2004 | US20040140845 Regulatated cascode structure for voltage regulators |
| 07/22/2004 | DE10258766A1 Circuit arrangement for measuring a load current according to the current-sensing principle, wherein a set of switchable auxiliary transistors are connected in parallel to a load transistor and can be connected as required |
| 07/22/2004 | DE102004001062A1 Entkopplungskondensatorsystem mit vier Schaltungszuständen für einen aktiven Leistungsstabilisierer Decoupling capacitor system with four circuit conditions for an active Leistungsstabilisierer |