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