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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07/05/1995 | CN2202973Y Electricity charger with two-way voltage-stabilizing output power source |
07/05/1995 | CN2202937Y High integration quick response ac voltage stabilizer |
07/04/1995 | US5430365 Power regulation for redundant battery supplies |
07/04/1995 | US5430364 Current harmonic, current form factor and power factor modification unit for rectifier supplied loads |
06/29/1995 | WO1995017707A1 Current stabiliser with step-up transformer |
06/29/1995 | CA2179754A1 System for airfield lighting |
06/28/1995 | EP0660487A2 Power supply system |
06/28/1995 | EP0659309A1 Rectifier circuit. |
06/28/1995 | CN2202370Y Automatic control reactive-load compesation device |
06/27/1995 | US5428551 For use with a voltage regulator |
06/27/1995 | US5428524 Method and apparatus for current sharing among multiple power supplies |
06/27/1995 | US5428299 Semiconductor integrated circuit device having low power consumption voltage monitoring circuit for built-in step-down voltage generator |
06/27/1995 | US5428286 Switching mode power supplies |
06/25/1995 | CA2139008A1 Output buffer circuit, input buffer circuit and bi-directional buffer circuit for plural voltage systems |
06/21/1995 | CN2201694Y Static phase device |
06/20/1995 | US5426579 Method and apparatus for stabilizing AC power supply systems connected to power factor correcting loads |
06/20/1995 | US5426387 Device for generating an electrical voltage of predetermined waveform, iontophoresis apparatus for transdermally administering medicinal products and electrical stimulation apparatus, which apparatuses are equipped with such a device |
06/14/1995 | CN2200835Y High precision current regulator |
06/14/1995 | CN1028939C High power factor power supply |
06/13/1995 | US5424666 Control circuit for slowly turning off a power transistor |
06/13/1995 | US5424617 HID lamp ignitor-timer with automatic reset for dips in line voltage |
06/08/1995 | DE4442105A1 Voltage limiter for solar panel group acting as satellite current source |
06/08/1995 | DE4431466C1 Voltage regulator e.g. for Hall element supply, motor vehicle applications etc. |
06/06/1995 | US5422593 Current-limiting circuit |
06/06/1995 | US5422563 Bootstrapped current and voltage reference circuits utilizing an N-type negative resistance device |
06/06/1995 | US5422562 Switching regulator with improved Dynamic response |
06/06/1995 | CA1335825C Reverse phase-controlled dimmer |
06/02/1995 | CA2136909A1 Electrical power distribution system apparatus-resident personality memory module |
06/01/1995 | WO1995014963A1 Energy saving power control system |
06/01/1995 | DE4340672A1 Dimmer circuit for phase controlled, full-wave lighting current |
05/31/1995 | CN2199629Y Multipurpose apparatus for charging, voltage stabilizing and discontinuity repairing |
05/31/1995 | CN1103175A Circuit for use with a feedback arrangement |
05/30/1995 | US5420783 Control logic power down circuit |
05/30/1995 | US5420498 Circuit arrangement for generating a constant output voltage |
05/30/1995 | US5420497 Direct current power unit having main and secondary direct current power supplies |
05/30/1995 | US5420495 Transmission line power flow controller |
05/24/1995 | DE4402340C1 Integrated power transistor circuit |
05/24/1995 | CN2198719Y Constant voltage regulator for permanent magnet ac generator |
05/24/1995 | CN2198715Y Multifunction electric power electron controller |
05/23/1995 | US5418709 Forback DC-to-DC converter |
05/23/1995 | US5418708 Constant power load bank |
05/23/1995 | US5418703 DC-DC converter with reset control for enhanced zero-volt switching |
05/23/1995 | US5418673 Control electrode disable circuit for power transistor |
05/23/1995 | US5418488 Device for establishing a current in an analog part of an integrated logic and analog circuit |
05/23/1995 | CA2008040C Method of and apparatus for reducing energy consumption |
05/23/1995 | CA2005308C Reactive power compensation apparatus with improved gate circuit |
05/18/1995 | WO1995013575A1 Power supply controller having low startup current |
05/18/1995 | WO1995013574A1 Electronic ballast with low harmonic distortion |
05/17/1995 | EP0653841A1 Power switch with inrush current control |
05/17/1995 | EP0653693A2 Apparatus for controlling the voltage drop across an appliance |
05/17/1995 | EP0653692A2 Method and apparatus for controlling the power of a battery power source |
05/16/1995 | US5416403 Current stabilizing circuit |
05/16/1995 | US5416299 Pulse welding apparatus |
05/11/1995 | WO1995012916A1 Remote power supply unit |
05/10/1995 | EP0652631A2 AC/DC power supply |
05/10/1995 | EP0651921A1 Current limiters in power utility applications |
05/10/1995 | CN2196793Y DC regulated power suplly |
05/10/1995 | CN2196792Y Automatic voltage-regulating protector for super-low power-consumption integreted circuit |
05/10/1995 | CN1102478A Improved power on system |
05/09/1995 | US5414341 DC-DC converter operable in an asyncronous or syncronous or linear mode |
05/09/1995 | US5414340 Feedback circuit for high efficiency linear DC power supply |
05/04/1995 | WO1995012157A1 Switchmode ac power controller |
05/04/1995 | DE4401330C1 Circuit arrangement for controlling a voltage |
05/03/1995 | EP0651499A2 AC/DC converter using a non-latch type switching device |
05/03/1995 | EP0651498A1 Current detection in power conversion |
05/03/1995 | EP0651497A2 Pulse width modulated power supply |
05/03/1995 | EP0651310A2 Power supply apparatus |
05/03/1995 | EP0651309A2 CMOS on-board voltage regulator |
05/03/1995 | EP0651307A2 Resistive heating control system and method that is functional over a wide supply voltage range |
05/03/1995 | EP0603285B1 Circuit for controlling the programming voltage of programmable memories |
05/03/1995 | CN1102276A Method for regulating electric power signal and its product and its use |
05/02/1995 | US5412308 Dual voltage power supply |
04/27/1995 | WO1995011549A1 Direct-current impressing circuit |
04/26/1995 | EP0650250A1 DC-to-DC converter operating in a discontinuous mode |
04/26/1995 | EP0650249A1 Buck converter with operating mode automatically determined by the load level |
04/26/1995 | EP0650113A2 Method of paramatrisation of a digital voltage regulator, especially for controlling a transformer with a step switch |
04/26/1995 | CN2195828Y Load voltage regulator for single-phase permanent-magnet alternating current electric generator |
04/26/1995 | CN2195817Y Automatic controller for compensating box |
04/19/1995 | EP0649214A2 High efficiency switch mode regulator |
04/18/1995 | US5408401 For converting direct current power into alternating current |
04/18/1995 | US5408380 Method and apparatus for load voltage compensation |
04/18/1995 | US5408193 Active circuit filter for reducing conducted radiation from a load back to its power supply |
04/18/1995 | US5408173 Manual-adjustment-free controlled-voltage and current-limited D.C. voltage supply |
04/18/1995 | US5408172 Step-down circuit for power supply voltage capable of making a quick response to an increase in load current |
04/18/1995 | US5408171 Combined solid-state and mechanically-switched transformer tap-changer |
04/12/1995 | EP0647946A2 Dynamic memory device having a plurality of internal power sources |
04/12/1995 | EP0647388A1 A power controller, for example a dimmer for electric lamps. |
04/12/1995 | EP0647365A1 Power controller device |
04/11/1995 | US5406192 Adaptive boost switching preregulator and method having variable output voltage responsive to input voltage |
04/11/1995 | US5406177 Gas discharge lamp ballast circuit with compact starting circuit |
04/11/1995 | US5406150 Circuit for controlling current |
04/05/1995 | EP0647026A2 Over current protection device for transistor |
04/05/1995 | EP0647011A1 High voltage power supply circuit |
04/04/1995 | US5404097 Voltage to current converter with negative feedback |
03/30/1995 | WO1995008862A1 Method and switching arrangement for starting a power supply |
03/29/1995 | EP0645686A1 Circuit arrangement to supply electrical loads with a constant voltage |
03/29/1995 | CN2193615Y Double check reactive automatic compensating gear |
03/28/1995 | US5402375 Voltage converter arrangement for a semiconductor memory |
03/28/1995 | US5402082 Voltage and resistance synthesizer using pulse width modulation |
03/28/1995 | US5402060 Controller for two-switch buck-boost converter |