| 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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| 09/13/1994 | US5347170 Semiconductor integrated circuit having a voltage stepdown mechanism |
| 09/13/1994 | US5347169 Inductive load dump circuit |
| 09/08/1994 | DE4405138A1 Control device for the voltage behaviour in the consumer circuit of a current consumer |
| 09/08/1994 | DE4302687A1 Method and inverter for the conversion of direct current into three-phase current |
| 09/07/1994 | EP0614136A1 Power supply shunt regulator |
| 09/06/1994 | US5345377 Harmonic controller for an active power line conditioner |
| 09/06/1994 | US5345167 Automatically adjusting drive circuit for light emitting diode |
| 09/05/1994 | CA2116890A1 Power supply shunt regulator |
| 09/01/1994 | DE4305768A1 Power supply unit |
| 08/31/1994 | EP0613326A1 High intensity discharge lamp ignitor |
| 08/31/1994 | EP0613071A2 Semiconductor integrated circuit device having low power consumption voltage monitoring circuit for built-in step-down voltage generator |
| 08/30/1994 | US5343350 Circuit configuration for protecting the on-board electrical system of a motor vehicle |
| 08/30/1994 | US5343140 Zero-voltage-switching quasi-resonant converters with multi-resonant bipolar switch |
| 08/30/1994 | US5343086 Automatic voltage detector control circuitry |
| 08/30/1994 | US5343078 Arrangement for providing a current-regulated control of several actuators with a control computer |
| 08/27/1994 | CA2116304A1 High intensity discharge lamp ignitor |
| 08/25/1994 | DE4305326A1 Circuit arrangement for photovoltaic power generation |
| 08/24/1994 | CN2175486Y Hall-effect type controlling device for automatically compensating reactive power for power network |
| 08/24/1994 | CN2175431Y Numerically controlled superimposition type ac manostat |
| 08/23/1994 | US5341287 Method and apparatus for the control and regulation of a first magnitude of a device by action on a second magnitude |
| 08/23/1994 | US5341285 Intelligent transformerless system for transferring energy from a power source to an isolated load |
| 08/23/1994 | US5341087 Reference current loop |
| 08/23/1994 | US5341085 Power supply circuit with standby arrangement |
| 08/18/1994 | WO1994018739A1 An emergency power system |
| 08/18/1994 | DE4304517A1 Power supply for predominantly inductive loads |
| 08/17/1994 | EP0610939A1 Voltage drop circuit to be built in semiconductor IC chip |
| 08/17/1994 | CN2174730Y Apparatus for obtaining stable d/c current from communication transmission line |
| 08/16/1994 | US5339045 Comparator start-up arrangement |
| 08/16/1994 | US5339009 Method and apparatus for distinguishing input signals and generating a common dimming signal |
| 08/10/1994 | EP0610058A2 Device for suppressing voltage fluctuation and higher harmonics |
| 08/10/1994 | EP0609497A2 A device and method for maintaining a high voltage for low power applications |
| 08/09/1994 | US5337284 High voltage generator having a self-timed clock circuit and charge pump, and a method therefor |
| 08/09/1994 | US5336987 Voltage stabilizing circuit of switching power supply circuit |
| 08/09/1994 | US5336985 Tapped inductor slave regulating circuit |
| 08/09/1994 | CA2021066C Apparatus for controlling a power supply of an electric machine in a vehicle |
| 08/03/1994 | EP0609158A1 Fail-safe power interface |
| 08/03/1994 | EP0609009A2 Dual gate JFET circuit to control threshold voltage |
| 08/03/1994 | EP0608974A2 Base current-control circuit of an output transistor |
| 08/03/1994 | EP0608787A2 Polyvalent power system |
| 08/02/1994 | US5335132 Overvoltage sensor with hysteresis |
| 08/02/1994 | US5334928 Frequency compensation circuit for low dropout regulators |
| 07/28/1994 | DE4327162C1 Mains reactive power compensation for inverter-fed sync machine |
| 07/27/1994 | EP0608150A1 Overload protection of switch mode converters |
| 07/27/1994 | EP0607246A1 Regulated auxiliary power supply. |
| 07/27/1994 | EP0436627B1 Method and apparatus for controlling a power converter |
| 07/26/1994 | CA2052248C Constant current circuit and an oscillating circuit controlled by the same |
| 07/21/1994 | WO1994016372A1 Low loss recirculation apparatus |
| 07/20/1994 | CN2172545Y Voltage stabilizing block |
| 07/20/1994 | CN2172494Y D.C. Imput and output differential voltage stabilizer for d.c. stabilizing power source |
| 07/20/1994 | CN1089734A DC regulated power supply of self-generating auxiliary voltage type |
| 07/19/1994 | US5331599 Dynamically switchable reference voltage generator |
| 07/19/1994 | US5331285 Resistively programmable interface for an analog device |
| 07/14/1994 | DE4344404A1 Anordnung zur Steuerung des einer Heizvorrichtung zugeführten Wechselstroms Arrangement for controlling the alternating current supplied to a heater |
| 07/13/1994 | EP0606089A1 Apparatus for controlling power converter |
| 07/13/1994 | CN2171948Y Multifunction energy-saving controllor for a.c. electrical machinery |
| 07/12/1994 | US5329224 Automotive voltage regulator circuit including serial voltage regulators |
| 07/12/1994 | US5329223 Ideal voltage controller for conserving energy in inductive loads |
| 07/12/1994 | US5329221 Advanced static var compensator control system |
| 07/12/1994 | US5329168 Semiconductor integrated circuit device equipped with substrate biasing system selectively powered from internal and external power sources |
| 07/07/1994 | WO1994015424A1 System for providing voltage in a voltage line common to a plurality of electrical units |
| 07/05/1994 | US5327047 Electrical dimmer system employing alternately applied silicon controlled rectifiers |
| 06/30/1994 | DE4244352A1 Antenna amplifier DC supply circuit |
| 06/29/1994 | EP0603655A2 Current limiting solenoid driver |
| 06/29/1994 | CN2170604Y Voltage-drop compensating electricity-saving controller for asynchronous motor |
| 06/28/1994 | US5325046 Inductive wireless data connection |
| 06/28/1994 | US5325037 Motor control system and method for a fuel burner |
| 06/23/1994 | WO1994014229A1 Automatic load current back regulation |
| 06/23/1994 | DE4341158A1 Tapped transformer load selector circuit arrangement |
| 06/23/1994 | DE4242988A1 Constant-current source with additional correction of y-parameter |
| 06/22/1994 | EP0602708A2 Control electrode disable circuit for power transistor |
| 06/22/1994 | EP0602466A2 Monolithic integrated voltage regulator |
| 06/22/1994 | EP0602355A1 Fuse programmable voltage down converter |
| 06/22/1994 | CN2169873Y Purifying ac regulated power supply |
| 06/21/1994 | US5323329 Digitally assisted power levelling circuit for rf power generator |
| 06/21/1994 | US5323171 Power circuit |
| 06/21/1994 | US5323100 Power supply device |
| 06/21/1994 | US5323062 System for triac trigger control in combination with a sensing element |
| 06/15/1994 | EP0601593A2 Power supply device with current multiplication |
| 06/15/1994 | CN2169158Y Single phase voltage adjuster |
| 06/15/1994 | CN1025082C Circuit structure with annex current for earthed user supply |
| 06/14/1994 | US5321653 Circuit for generating an internal source voltage |
| 06/09/1994 | WO1994013057A1 Power converter circuit |
| 06/09/1994 | WO1994012921A1 Digital voltage regulator having capacitance selector |
| 06/08/1994 | EP0600527A1 Stress mode circuit for an integrated circuit with on-chip voltage down converter |
| 06/08/1994 | EP0600003A1 Method for temperature-compensating zener diodes having either positive or negative temperature coefficients |
| 06/08/1994 | CN2168277Y Voltage-stabilizing controlling transformer |
| 06/07/1994 | USH1319 Current limit circuit for power supply regulators |
| 06/07/1994 | US5319536 Power system for parallel operation of AC/DC convertrs |
| 06/07/1994 | US5319303 Current source circuit |
| 06/07/1994 | US5319302 Semiconductor integrated circuit device having voltage regulating unit for variable internal power voltage level |
| 06/07/1994 | US5319300 Error compensating circuit for power consumption meter |
| 06/07/1994 | US5319283 Dimmer switch with gradual reduction in light intensity |
| 06/07/1994 | US5319252 Load programmable output buffer |
| 06/01/1994 | EP0599410A1 System for parallel supply of energy converters |
| 06/01/1994 | EP0599072A2 Integratable circuit arrangement for calibrating a control signal |
| 06/01/1994 | EP0598849A1 Low power switching power supply circuits and methods |
| 06/01/1994 | EP0409847B1 Process and circuit versions for charging accumulators |
| 06/01/1994 | CN2167473Y Device for three-branch type network double voltage control |
| 06/01/1994 | CN2167395Y Voltage-double type voltage-raising and regulating lamp |
| 06/01/1994 | CN2167394Y Voltage regulation device for large power ac voltage-stabilizer |