| 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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| 07/07/1999 | EP0928054A2 Electrostatic discharge protection circuit |
| 07/07/1999 | CN2328111Y Small low voltage single phase distributor automatic with voltage regulator by load |
| 07/07/1999 | CN2328045Y High voltage reactive compensation intellectual device |
| 07/07/1999 | CN2328044Y D.C. Voltage stable source with twin transistor alternative chopper |
| 07/07/1999 | CN2328043Y Voltage stabilizer with battery charger |
| 07/07/1999 | CN1222000A Zero transition procedue triggering two-control-three capacitor switching method and appts. |
| 07/06/1999 | US5920185 Constant-voltage circuit capable of preventing an overshoot at a circuit output terminal |
| 07/06/1999 | US5920132 Non-rotating portable voltage sag generator |
| 07/06/1999 | US5919262 For a general purpose computer |
| 07/01/1999 | DE19756233A1 Current-voltage regulator |
| 06/30/1999 | EP0801833B1 Transmission line power flow controller with unequal advancement and retardation of transmission angle |
| 06/30/1999 | CN2327100Y Three-phase loaded voltage-regulation box type distribution apparatus |
| 06/30/1999 | CN2326998Y Soft-starting switch electric-power supply for projection equipment |
| 06/30/1999 | CN1043929C Tracking run/stand-by power supplies |
| 06/29/1999 | US5917368 Voltage-to-current converter |
| 06/29/1999 | US5917318 High-speed responsive power supply for measuring equipment |
| 06/29/1999 | US5917311 Trimmable voltage regulator feedback network |
| 06/24/1999 | WO1999031560A2 Digitally controlled illumination methods and systems |
| 06/23/1999 | EP0924589A1 Electroactuator control device and method for controlling this control device |
| 06/23/1999 | CN2325925Y Alternatively timing switch type power supply arrangement |
| 06/23/1999 | CN1220783A Oscillation circuit, electronic circuit, semiconductor device, electronic equipment and clock |
| 06/23/1999 | CN1220406A Driving voltage generator of liquid crystal display |
| 06/22/1999 | US5914631 Voltage generating circuit |
| 06/22/1999 | US5914591 Switching power supply |
| 06/22/1999 | US5914589 Electric circuit |
| 06/17/1999 | WO1999030216A1 Internal cmos reference generator and voltage regulator |
| 06/17/1999 | DE19755499A1 Circuit arrangement for optimizing power transmission between solar cell module or wind-power generator, and DC-fed loads, preferably pumps and fans |
| 06/16/1999 | EP0923014A1 Reference DC voltage generating apparatus |
| 06/16/1999 | EP0922636A1 Power supply regulation and attitude control on solar array equipped spacecraft using flywheel energy storage with programmable voltage control |
| 06/16/1999 | CN2324402Y Interrupted power-supply lighting power-saving device |
| 06/16/1999 | CN1220053A Switched-mode power supply arrangement |
| 06/16/1999 | CN1219801A Power source circuit of semiconductor integrated circuit |
| 06/16/1999 | CN1219695A Controllable voltage and current power supply circuit of active capacitor regulation |
| 06/16/1999 | CN1043694C Circuit for generating internal source voltage |
| 06/15/1999 | US5912551 Start up circuit for a boost mode controller |
| 06/15/1999 | US5912550 Power converter with 2.5 volt semiconductor process components |
| 06/15/1999 | US5912513 Telecommunication device |
| 06/10/1999 | WO1999028801A1 Solar array system |
| 06/10/1999 | DE19855918A1 Voltage equalization device for DC supply system |
| 06/09/1999 | EP0921619A2 A power source circuit of a semiconductor integrated circuit |
| 06/09/1999 | EP0920658A1 Precision bandgap reference circuit |
| 06/09/1999 | CN2323400Y On-line automatic ac voltage compensation regulator |
| 06/08/1999 | US5910924 Semiconductor integrated circuit including voltage converter effective at low operational voltages |
| 06/02/1999 | EP0919019A1 Energy saving power control system |
| 06/02/1999 | CN1218321A Automatic power factor compensation controller for high and low voltage power network |
| 06/01/1999 | US5909142 Semiconductor integrated circuit device having burn-in test capability and method for using the same |
| 06/01/1999 | US5909112 Configuration and test process for semiconductor overcurrent detecting circuit |
| 06/01/1999 | US5909111 Method and apparatus for controlling a current |
| 06/01/1999 | US5909110 Integrated voltage regulator circuit with vertical transistor |
| 06/01/1999 | US5909109 Voltage regulator predriver circuit |
| 06/01/1999 | US5909105 Control of power networks |
| 05/26/1999 | EP0918272A1 Bias circuit for a voltage reference circuit |
| 05/25/1999 | US5907743 Image heating apparatus with control for phase control of alternating current |
| 05/25/1999 | US5907257 Generation of signals from other signals that take time to develop on power-up |
| 05/25/1999 | US5907237 Voltage dropping circuit and integrated circuit |
| 05/20/1999 | DE19851732A1 Current-regulation stage fault-monitoring system |
| 05/19/1999 | EP0917339A2 Method and apparatus for reducing power dissipation in dc termination circuit |
| 05/19/1999 | EP0917169A2 Method for monitoring a tap changer |
| 05/19/1999 | EP0916187A1 Voltage controlled variable current reference |
| 05/19/1999 | EP0916181A1 Voltage to current converter for high frequency applications |
| 05/19/1999 | CN1216875A Method for feeding reactive power into AC grid system, as well as inverter for such method |
| 05/18/1999 | US5905403 Multiple output programmable reference voltage source |
| 05/18/1999 | US5905399 CMOS integrated circuit regulator for reducing power supply noise |
| 05/12/1999 | EP0915560A2 Method and device for controlling a power converter |
| 05/12/1999 | EP0915409A1 Electronic circuit, semiconductor device, electronic equipment, and clock |
| 05/12/1999 | EP0915408A1 High voltage regulator and corresponding voltage regulation method |
| 05/12/1999 | DE19748328A1 Constant voltage output device |
| 05/12/1999 | CN2318747Y Reactive power compensating controller |
| 05/12/1999 | CN2318664Y All-electric purification type AC. voltage regulator for household |
| 05/12/1999 | CN2318663Y Digital controlled voltage regulator |
| 05/11/1999 | US5903513 Semiconductor integrated circuit device with clock frequency invariant voltage step-down circuit |
| 05/11/1999 | US5903422 Overcurrent sensing circuit for power MOS field effect transistor |
| 05/11/1999 | US5903183 Constant voltage circuit and constant voltage/constant current changeover circuit |
| 05/11/1999 | US5903182 Method and system for providing a regulated core voltage to a processor within a computer system |
| 05/06/1999 | WO1999022445A1 Differential voltage-to-current converter |
| 05/06/1999 | WO1999022285A1 Regulator |
| 05/06/1999 | EP0913920A2 Switchting regulator having high current prevention features |
| 05/06/1999 | EP0913756A2 A voltage regulator |
| 05/06/1999 | EP0913755A2 Voltage converter |
| 05/06/1999 | EP0913754A1 Switchable DC voltage regulation circuit |
| 05/06/1999 | EP0913753A1 Electronic regulation circuit for driving a power device and corresponding protection method of such device |
| 05/06/1999 | EP0913752A2 Arrangement of a tap changer for tapped transformer |
| 05/06/1999 | EP0795218A4 Ignition apparatus and method |
| 05/06/1999 | DE19745175A1 Diagnostic arrangement for electromagnetic control element in an automatic transmission |
| 05/05/1999 | CN1043272C 电路 Circuit |
| 05/04/1999 | US5901085 Programmable reference voltage source, particularly for analog memories |
| 05/04/1999 | US5901070 Voltage regulator controller having means for automatic configuration of accessory devices |
| 05/04/1999 | US5900774 Direct current differential base voltage generating circuit |
| 05/04/1999 | US5900773 Precision bandgap reference circuit |
| 05/04/1999 | US5900724 For equal loading of at least two voltage supply units |
| 04/29/1999 | WO1999021278A1 Low-voltage comparator with wide input voltage swing |
| 04/29/1999 | WO1999021270A1 Electronic filter |
| 04/29/1999 | WO1999021069A1 Voltage regulator circuits and semiconductor circuit devices |
| 04/29/1999 | WO1999021068A1 Inverter circuit biased to limit the maximum drive current to a following stage and method |
| 04/29/1999 | DE19849019A1 Smoothing circuit for switching current supply , for charging battery |
| 04/29/1999 | DE19849018A1 Smoothing circuit for switching current supply, for charging battery |
| 04/29/1999 | DE19746980A1 Method of driving electromagnetic load, esp. a fuel injection valve for an internal combustion engine |
| 04/29/1999 | CA2252108A1 Voltage control system with a stepped transformer |
| 04/28/1999 | EP0911978A1 Generation of temperature compensation low noise symmetrical reference voltages |
| 04/28/1999 | EP0911842A2 Method for monitoring a tap changer |