| 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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| 03/08/2000 | EP0983627A1 Apparatus for power supplying and controlling a number of external devices |
| 03/08/2000 | CN1246671A Power supply circuit for filament of high-power electronic tube |
| 03/07/2000 | US6034562 Mixed signal processing system and method for powering same |
| 03/07/2000 | US6034519 Internal supply voltage generating circuit |
| 03/07/2000 | US6034499 Method of controlling rotary position of a torque motor |
| 03/02/2000 | DE19838003A1 Voltage stabilization device, especially for use in motor vehicle, has step-up voltage converter coupled before voltage regulator to increase supplied voltage when this falls below predetermined value |
| 03/02/2000 | DE19837862A1 Solar module, especially portable solar module, controlling DC voltage converter in such way, that it is connected to load, if source voltage oversteps predetermined switch-on threshold value |
| 03/02/2000 | DE19837153A1 Pulsweitenmodulierter Gleichspannungswandler Pulse Width Modulated DC-DC converter |
| 03/01/2000 | EP0982841A2 Pulse-width modulated d.c.-d.c. converter |
| 03/01/2000 | EP0982827A1 Compensation device and power transmission system using a compensation device |
| 03/01/2000 | CN2366880Y Voltage stabilization protector for ac circuit |
| 03/01/2000 | CN2366879Y AC voltage stabilizer |
| 03/01/2000 | CN1246218A Driving mechanism for industrial installations, in particular for primary industry installations |
| 03/01/2000 | CN1245992A Compensation device and power transmission system using one compensation device |
| 02/29/2000 | US6031749 Universal power module |
| 02/29/2000 | US6031748 Power saving circuit of power factor adjusting type |
| 02/29/2000 | US6031736 Control apparatus of inverter and power generation system using such control apparatus |
| 02/29/2000 | US6031705 Surge protection circuit, in particular for inputs of integrated circuits |
| 02/29/2000 | US6031364 Series control type regulator |
| 02/29/2000 | US6031362 Method and apparatus for feedback control of switch mode power supply output to linear regulators |
| 02/29/2000 | US6031361 Voltage regulation using an estimated current |
| 02/29/2000 | US6031357 Battery charge control circuit |
| 02/29/2000 | US6031335 Electrical power control system for lighting systems |
| 02/24/2000 | DE19939501A1 Series controlled adjustment voltage element or regulator, has circuit to discharge output capacitor when switching from operating condition to interrupt condition |
| 02/24/2000 | DE19838230A1 Operating point optimization for photo-voltaic or thermo-voltaic energy converter with variable internal resistance, changing load current periodically around operating point at high frequency |
| 02/23/2000 | EP0981077A1 Voltage regulator |
| 02/23/2000 | EP0793848A4 Pcmcia power multiplexer integrated circuit with programmable decode |
| 02/23/2000 | CN2365707Y Box type emergency power supply for mobile phone |
| 02/23/2000 | CN2365706Y High voltage power source using for precision photoelectric measurement |
| 02/23/2000 | CN2365705Y Full-automatic multiple protection AC regulated voltage stabilized power supply |
| 02/23/2000 | CN1245303A Multifunctional power supply |
| 02/23/2000 | CN1049748C Automatic regulation device for interface, voltage of voltage hybrid device |
| 02/22/2000 | US6028640 Current source and threshold voltage generation method and apparatus for HHK video circuit |
| 02/22/2000 | US6028420 Constant voltage power supply with continuity checking |
| 02/22/2000 | US6028417 Voltage regulator circuit for attenuating inductance-induced on-chip supply variations |
| 02/22/2000 | CA2154699C Energy saving power control system |
| 02/17/2000 | WO2000008740A2 Arrangement for eliminating radio interferences in an electronic power regulator |
| 02/17/2000 | DE19831603A1 Schaltungsvorrichtung zur annähernd sinusförmigen Absenkung einer Wechselspannung Circuit means for lowering an approximately sinusoidal AC voltage |
| 02/16/2000 | EP0980141A1 Control circuit for a semiconductor component |
| 02/16/2000 | EP0980134A1 Method of protecting a high power converter and protection device for implementing the method |
| 02/16/2000 | EP0980035A1 Single-phase three-wire type transformer |
| 02/16/2000 | CN1049511C Frequency compensated circuit |
| 02/15/2000 | US6025707 Internal voltage generator |
| 02/15/2000 | US6025705 DC-to-DC converter |
| 02/15/2000 | US6025704 Power supply with programmable voltage slew rate and method |
| 02/15/2000 | US6025703 System and method for compensating for unwanted voltage drops |
| 02/15/2000 | CA2043064C Optimized 18-pulse type ac/dc, or dc/ac, converter system |
| 02/15/2000 | CA2010460C Circuit for regulationg the base current of a semiconductor power device |
| 02/08/2000 | US6023419 Capacitor regulated controllable voltage and current power supply |
| 02/08/2000 | US6023156 Switched load voltage regulation circuit |
| 02/08/2000 | US6023155 Utilizing a combination constant power flyback converter and shunt voltage regulator |
| 02/03/2000 | WO2000005635A1 Circuit for reducing input voltage |
| 02/02/2000 | CN2362149Y Device of monitoring high-voltage fence for prison enclosing wall |
| 02/02/2000 | CN1243610A Control device with forced operation function and semiconductor integrated circuit device |
| 02/02/2000 | CN1243414A Circuit for exciting cold cathode fluorescent lamp |
| 02/02/2000 | CN1049080C Controller for inverter and generating system using the same |
| 02/01/2000 | US6021054 Smoothing circuit for switching power supply for reduction of noise |
| 02/01/2000 | US6020727 Setting of a linear regulator to stand-by |
| 02/01/2000 | CA2031753C Ac-dc converter type of supply |
| 01/27/2000 | WO2000004628A1 Circuit device for approximately-sinusoidal lowering of an ac voltage |
| 01/27/2000 | DE19833345A1 Voltage regulation device for providing variable regulated voltage has outputvoltageof voltage regulator determined by variable setting voltage provided by setting voltage source |
| 01/27/2000 | DE19833092A1 Circuit for reducing input voltage for revolution rate measurement has potential divider(s) regulated to increase/decrease division factor with increasing/decreasing input voltage |
| 01/26/2000 | EP0974186A1 Method and arrangement in a dc-to-dc converter |
| 01/26/2000 | EP0974083A1 Flicker controllers using voltage source converters |
| 01/26/2000 | EP0885415A4 Triac control circuit |
| 01/26/2000 | CN2360874Y Shunt voltage stabilizing power source |
| 01/26/2000 | CN2360046Y Output power regulator for high frequency electrotome |
| 01/25/2000 | US6018370 Current source and threshold voltage generation method and apparatus for HHK video circuit |
| 01/25/2000 | US6018265 Internal CMOS reference generator and voltage regulator |
| 01/25/2000 | US6018203 Apparatus for and method of evenly distributing an electrical load across an n-phase power distribution network |
| 01/25/2000 | CA2189851C Voltage regulator |
| 01/19/2000 | EP0973246A1 Controller for a synchronous rectifier and power converter employing the same |
| 01/19/2000 | EP0973200A1 Reference voltage supply circuit |
| 01/19/2000 | EP0973084A2 Integrated circuit with a voltage regulator |
| 01/19/2000 | EP0972134A1 Device for regulating the flow of electricity through a consumer |
| 01/19/2000 | CN2359726Y Non-induction type low-voltage steady D. C. power supply module |
| 01/19/2000 | CN1242136A A power control apparatus for lighting system |
| 01/18/2000 | US6016050 Start-up and bias circuit |
| 01/13/2000 | DE19820989C1 Voltage supply circuit, esp. for electronic ignition arrangement for shells, enables circuit to be supplied continuously from variable input voltage with sufficient power to initiate triggering |
| 01/12/2000 | EP0971472A1 Control device with forced operation function and semiconductor integrated circuit device |
| 01/12/2000 | EP0971280A1 Voltage regulator and method of regulating voltage |
| 01/12/2000 | EP0971279A1 Calibrating method of a resistor in an integrated circuit and apparatus for executing this method |
| 01/12/2000 | CN2358475Y Power supply device for high power electron-tube heater |
| 01/12/2000 | CN1241320A Protecting method for inrush current preventing resistor |
| 01/11/2000 | US6014322 Power supply unit, parallel operation control circuit applied thereto, and parallel operation control method |
| 01/11/2000 | US6014060 Voltage supply circuit for amplifier |
| 01/11/2000 | US6014019 Converter for a DC power supply having an input resistance in series with a DC regulating circuit |
| 01/11/2000 | US6014017 Method and apparatus for power factor correction by a compensation device having a pulse converter |
| 01/11/2000 | US6013938 Power control device |
| 01/06/2000 | WO2000000876A1 Apparatus and method for reducing energy fluctuations in a portable data device |
| 01/05/2000 | EP0969344A2 Semiconductor integrated circuit including voltage follower circuit |
| 01/05/2000 | CN1240310A Power source control unit |
| 01/05/2000 | CN1048121C Power limiting voltage stabilizer |
| 01/04/2000 | US6011429 Reference voltage generating device |
| 01/04/2000 | US6011428 Voltage supply circuit and semiconductor device including such circuit |
| 01/04/2000 | US6011384 Voltage balancing device for a direct current power supplying system |
| 01/04/2000 | US6011381 Three-phase auto transformer with two tap changers for ratio and phase-angle control |
| 01/04/2000 | CA2153274C Power-out reset system |
| 12/29/1999 | EP0967532A1 Power control unit |
| 12/29/1999 | EP0916187A4 Voltage controlled variable current reference |