| 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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| 02/04/1998 | EP0822648A1 Method and device for control of invertors |
| 02/04/1998 | EP0822476A2 Internal voltage generating circuit |
| 02/04/1998 | EP0822475A1 Method and circuit for controlling the charge of a bootstrap capacitor in a switching step-down regulator |
| 02/04/1998 | CN1037307C Power supply circuit with standby arrangement |
| 02/03/1998 | US5714872 Telecommunication terminal with voltage controller having a phase-shifting component and a feedback path |
| 02/03/1998 | US5714847 Power regulator |
| 01/31/1998 | CA2210616A1 Soft-start switch with voltage regulation and current limiting |
| 01/29/1998 | WO1998003901A1 Current control apparatus |
| 01/29/1998 | DE19732117A1 Power supply system with fuel cells and storage battery arranged in parallel to load e.g. for electric vehicle |
| 01/29/1998 | DE19630432A1 Network-coupled photo-voltaic power plant |
| 01/28/1998 | EP0821460A2 Current source |
| 01/28/1998 | CN2273467Y Continuity power source |
| 01/28/1998 | CN1171863A Transmission line power flow controller with unequal advancement and retardation of transmission angle |
| 01/28/1998 | CN1171650A Solar cell power source device |
| 01/28/1998 | CN1171632A Medium voltage generating circuit and nonvolatile semiconductor memory containing same |
| 01/27/1998 | US5712859 Semiconductor integrated circuit |
| 01/27/1998 | US5712589 Apparatus and method for performing adaptive power regulation for an integrated circuit |
| 01/27/1998 | US5712554 Voltage compensation device |
| 01/27/1998 | US5712547 Software controlled latched voltage regulator having wiper switch decoding |
| 01/22/1998 | WO1998002961A1 Fail-safe common control of multiple alternators connected in tandem parallel |
| 01/22/1998 | DE19628770A1 Travelling wave tube amplifier power output variation method |
| 01/22/1998 | CA2262878A1 Fail-safe common control of multiple alternators connected in tandem parallel |
| 01/21/1998 | EP0819998A2 Power control device |
| 01/21/1998 | EP0819273A1 Method of splitting a power supply |
| 01/21/1998 | EP0788685A4 Method and apparatus for controlling the voltage supplied to a semiconductor device |
| 01/21/1998 | CN2273073Y Auto-controlled compensation type high-efficiency electricity saver for motor |
| 01/14/1998 | EP0818867A1 Circuit arrangement |
| 01/14/1998 | EP0818866A2 Abnormality detecting device for a phase advancing capacitor |
| 01/14/1998 | EP0818099A1 Terminator with voltage regulator |
| 01/14/1998 | CN2272626Y High voleage line reactive compensation automatic switch device |
| 01/13/1998 | US5708577 Regulated power supply |
| 01/13/1998 | US5708574 Adaptive power direct current preregulator |
| 01/13/1998 | US5708420 Voltage detection circuit compensated in technology and temperature |
| 01/13/1998 | US5708357 Power circuit for electronic controller |
| 01/08/1998 | DE19627157A1 Diode voltage shifter circuit with temp variation suppression |
| 01/07/1998 | EP0817372A2 Voltage to current conversion circuit for converting voltage to multiple current outputs |
| 01/07/1998 | EP0816964A1 Voltage regulating device with low internal power dissipation |
| 01/07/1998 | EP0750803A4 Current protection method and apparatus and current protected low dropout voltage circuits |
| 01/07/1998 | CN1169783A Mtthod and apparatus for electronic power control |
| 01/07/1998 | CN1169617A Regulated dc. power-supply circuit for intermittent switch |
| 01/06/1998 | US5706187 Switching power source circuitry having a current bypass circuit |
| 01/06/1998 | US5705923 Variable inductance current limiting reactor control system for electrostatic precipitator |
| 01/06/1998 | US5705922 Terminator with voltage regulator |
| 01/06/1998 | US5705920 Power supply apparatus |
| 01/06/1998 | US5705919 Low drop-out switching regulator architecture |
| 01/06/1998 | US5705877 Piezoelectric transformer driving circuit |
| 12/31/1997 | WO1997050169A1 Wireless selective tripping of ac power systems connected in parallel |
| 12/31/1997 | CN1169050A Stable ac network able for anti reactive load undulation, and reactive power compensating device |
| 12/30/1997 | US5703769 For coupling a load to a power source |
| 12/30/1997 | US5703476 Reference voltage generator, having a double slope temperature characteristic, for a voltage regulator of an automotive alternator |
| 12/30/1997 | US5703473 Programmable PWM output voltage independent of supply |
| 12/30/1997 | CA2110724C Vernier control system for subsynchronous resonance mitigation |
| 12/30/1997 | CA2023369C Image forming apparatus utilizing an ac voltage control circuit |
| 12/29/1997 | EP0814395A2 Overcurrent sensing circuit for power mos field effect transistor |
| 12/29/1997 | EP0813705A1 High precision voltage regulation circuit for programming multilevel flash memory |
| 12/29/1997 | EP0667009B1 Motor driven step switch |
| 12/24/1997 | WO1997049022A1 Active power minimizer/maximizer for switching power converters and switching motor drive applications |
| 12/24/1997 | CN1168565A Watt consumption controlling circuit |
| 12/17/1997 | EP0813284A2 Process for stabilizing of an AC network against reactive power fluctuations and reactive power compensating apparatus |
| 12/17/1997 | EP0777872A4 Low frequency square wave electronic ballast for gas discharge devices |
| 12/17/1997 | EP0754303B1 Reliable voltage monitoring system |
| 12/17/1997 | CN2270987Y Sine envelope high frequency modulation ac voltage regulator |
| 12/17/1997 | CN1168180A Electrical apparatus |
| 12/17/1997 | CN1167932A Three-phase separated and integrated regulating single phase voltage-regulator with mean-square value transducer |
| 12/17/1997 | CN1036750C Direct-current impressing circuit |
| 12/16/1997 | US5698973 Soft-start switch with voltage regulation and current limiting |
| 12/16/1997 | US5698970 Switching shunt regulator |
| 12/16/1997 | US5698969 Apparatus and method for interline power flow control |
| 12/16/1997 | US5698908 Buffered DC power supply system |
| 12/16/1997 | US5698887 Semiconductor protection circuit |
| 12/10/1997 | EP0811901A2 Voltage rectifying and smoothing circuit |
| 12/10/1997 | EP0811267A1 Power supply device |
| 12/10/1997 | EP0756783A4 Impedance emulator |
| 12/09/1997 | US5696465 Semiconductor circuit having constant power supply circuit designed to decrease power consumption |
| 12/09/1997 | US5696439 Fuzzy control process for switching power supplies, and device for performing it |
| 12/09/1997 | CA2132226C Bipolar tracking current source/sink with ground clamp |
| 12/04/1997 | WO1997045947A1 Switched-mode power supply arrangement |
| 12/04/1997 | DE19722162A1 Circuit for controlling power drawn by AC consumer load e.g. electric fan motor for dryer |
| 12/03/1997 | EP0810504A1 High response and low consumption voltage regulator, and corresponding method |
| 12/03/1997 | EP0810443A1 Voltage monitoring circuit in an integrated circuit device |
| 12/03/1997 | EP0809822A1 Delayed safety braking apparatus for a servomotor control system |
| 12/03/1997 | EP0725995B1 Remote power supply unit |
| 12/03/1997 | CN2269671Y Voltage stabilizer for low voltage ac generator |
| 12/03/1997 | CN1166911A System and method for optimizing energy efficiency of building system for target energy consumption level |
| 12/03/1997 | CN1166639A Clamp circuit for remotely sensed voltage |
| 12/02/1997 | US5694076 Voltage generation circuit with output fluctuation suppression |
| 12/02/1997 | US5694030 Magnetic element for power supply and DC-to-DC converter |
| 12/02/1997 | US5694028 Method and apparatus for adjusting the power supply voltage provided to a microprocessor |
| 11/26/1997 | EP0809168A1 Protected system against excessive temperature |
| 11/26/1997 | EP0746809A4 Electronic ballast with low harmonic distortion |
| 11/26/1997 | EP0615653A4 Inductive load dump circuit. |
| 11/26/1997 | CN1166245A Circuit arrangement provided with a voltage-current converter |
| 11/26/1997 | CN1166078A Output voltage compensating circuit |
| 11/25/1997 | US5691873 Apparatus to generate magnetism |
| 11/25/1997 | US5691630 Power supply control apparatus |
| 11/25/1997 | US5691627 Push-pull full shunt switching bus voltage limiter with current sense capability |
| 11/20/1997 | DE19720427A1 Solar cell voltage source system for converting solar energy to DC voltage |
| 11/19/1997 | EP0807329A1 Dynamic power and voltage regulator for an ac transmission line |
| 11/19/1997 | EP0746899A4 Switching regulator having high current prevention features |
| 11/19/1997 | CN1165603A Supply voltage swiching apparatus |