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

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)
11/1997
11/19/1997	CN1165420A Precision current limit circuit
11/19/1997	CN1165272A Method for controlling microwave oven to prevent overcooking of small food portions
11/18/1997	US5689460 Semiconductor memory device with a voltage down converter stably generating an internal down-converted voltage
11/18/1997	US5689408 Magnetic amplifier
11/18/1997	US5689230 Energy monitoring and control system using reverse transmission on AC line
11/18/1997	US5689179 Computer
11/13/1997	WO1997042796A1 Ballast
11/13/1997	WO1997042555A1 Method and apparatus for controlling power delivered to a fluorescent lamp
11/13/1997	WO1997042554A1 Voltage-to-current converter
11/13/1997	DE19618882A1 Circuit for supplying electric load such as fan or storage battery of vehicle from solar generator
11/13/1997	DE19618881A1 Supplying electric loads, such as fan or battery in vehicle from solar generator
11/13/1997	CA2253750A1 Voltage-to-current converter
11/12/1997	EP0806001A1 Controller and method for controlling electrical supergrid transformer voltage
11/12/1997	EP0689689A4 Energy saving power control system
11/12/1997	CN1164686A DC-stabilized circuit
11/12/1997	CN1164685A Automatic compensating voltage stabilizer
11/12/1997	CN1164684A High efficiency symmetric voltage-stabilizing power supply system
11/12/1997	CN1164630A Method of controlling food thawing and cooking operations of microwave oven
11/11/1997	US5687065 Pre-regulator with light switch to limit voltage ringing on turn-off
11/11/1997	US5686821 Stable low dropout voltage regulator controller
11/11/1997	US5686820 Voltage regulator with a minimal input voltage requirement
11/11/1997	US5686768 Emergency power system
11/11/1997	US5686767 Apportioning minimal standby power
11/05/1997	EP0805540A1 A power supply system for a plurality of electronic devices or units on board a motor vehicle
11/05/1997	CN2266745Y AC voltage stabilizer
11/05/1997	CN1164139A Electronic trip device comprising power supply device
11/04/1997	US5684678 Resonant converter with controlled inductor
11/04/1997	US5684391 Circuit arrangement for powering at least one load
11/04/1997	US5684390 Active semiconductor device with matched reference component maintained in breakdown mode
11/04/1997	US5684385 Customized storage, high voltage, photovoltaic power station
10/1997
10/30/1997	WO1997040437A1 Method and apparatus for sensing current in power supplies
10/30/1997	DE19707705A1 Output voltage controller connected to electric power converter containing voltage type PWM converter
10/30/1997	DE19617148A1 Power control of bimetallic energy regulator e.g. for small 6 W heating plate
10/29/1997	EP0803085A1 Electrical apparatus
10/29/1997	EP0802867A1 Current consumption control for several current consumers in a motor vehicle
10/29/1997	CN2266216Y Voltage-stabilizing permanent-magnet AC generator
10/29/1997	CN2266146Y Compound energy accumulation pulse-width modulated voltage-regulated DC power supply
10/29/1997	CN1163462A Semiconductor integrate circuit device for internal power circuit with overcoming load fluctuation and keeping stable output level
10/28/1997	US5682305 Method and apparatus for controlling the power of a battery power source
10/28/1997	US5682093 Apparatus and method for reducing the power consumption of an electronic device
10/28/1997	CA2072296C Switching cirucit protection apparatus and method
10/23/1997	WO1997039388A1 Current control process
10/23/1997	DE19614866A1 Verfahren zur Stromregelung A method for flow control
10/22/1997	EP0801851A1 Damped emi input filter for power factor correction circuits
10/22/1997	EP0801833A1 Transmission line power flow controller with unequal advancement and retardation of transmission angle
10/22/1997	EP0691003A4 Low cost active power line conditioner
10/21/1997	US5680036 Logarithmic power compensation for a switching power supply
10/21/1997	US5680035 Electronic filter
10/21/1997	US5680017 Driving scheme for minimizing ignition flash
10/15/1997	EP0456728B1 Power supply system
10/15/1997	CN1036160C DC regulated power supply of self-generating auxiliary votage type
10/14/1997	US5677925 Power converter device for direct current power supply to an electric arc furnace
10/14/1997	US5677619 Method and apparatus for multiple output regulation in a step-down switching regulator
10/09/1997	WO1997037417A1 Method and apparatus for automatically controlling intergrated circuit supply voltages
10/08/1997	EP0800177A1 Supply voltages switch for memory devices
10/08/1997	CN1161754A Improved variable-voltage CPU voltage regulator
10/08/1997	CN1161489A Complementary phase control type ac stabilized voltage supply
10/08/1997	CN1161488A Full automatic compensation type stabilized voltage supply with high efficiency and energy saving function
10/07/1997	US5675486 Electric power circuit having means for suppressing generation of harmonics flowing back to AC power source
10/07/1997	US5675479 Switching power-supply
10/07/1997	US5675280 Semiconductor integrated circuit device having built-in step-down circuit for stepping down external power supply voltage
10/07/1997	US5675240 All digital switching regulator for use in power supplies, battery chargers, and DC motor control circuits
10/07/1997	US5675239 For providing power to a positive and negative load
10/01/1997	EP0798618A1 Array device having functional circuits and constant current generating circuits for a plurality of channels
10/01/1997	EP0797794A1 A voltage reference arrangement, a voltameter, a battery voltage detection arrangement, and a wireless communication device
10/01/1997	CN1160877A Uninterruptive switching regulator
09/1997
09/30/1997	US5673232 Semiconductor memory device operating stably under low power supply voltage with low power consumption
09/30/1997	US5672997 Method and apparatus for reducing the nominal operating voltage supplied to an integrated circuit
09/30/1997	US5672961 Temperature stabilized constant fraction voltage controlled current source
09/30/1997	US5672956 Static reactive power compensating equipment
09/24/1997	EP0594833B1 Vernier control system for subsynchronous resonance mitigation
09/24/1997	CN2263363Y 电子报警自控调压器 Electronic alarm-controlled regulator
09/23/1997	US5671149 Programmable board mounted voltage regulators
09/23/1997	US5670867 Current sensing circuit
09/23/1997	US5670865 Circuit to improve the transient response of step-down DC to DC converters
09/23/1997	US5670864 Adaptive automatic power capacitor for controlling controller a capacitor bank of a power distribution system
09/23/1997	US5670829 Precision current limit circuit
09/18/1997	WO1997034210A1 Controllable reactor with feedback control winding
09/18/1997	WO1997034161A1 Method for monitoring of tap changers by acoustic analysis
09/17/1997	EP0795218A1 Ignition apparatus and method
09/17/1997	CN2262714Y Input voltage range apparatus for width increased servo-voltage stabilizer
09/17/1997	CN1159656A Semiconductor IC
09/16/1997	US5668464 Feedforward active filter for output ripple cancellation in switching power converters
09/12/1997	WO1997033213A1 Transient suppressor
09/10/1997	EP0794477A1 A voltage generation circuit
09/10/1997	EP0793869A1 Series compensator inserting real and reactive impedance into electric power system for damping power oscillations
09/10/1997	EP0793848A1 Pcmcia power multiplexer integrated circuit with programmable decode
09/10/1997	CN1035843C Current source for variable load with inductive component
09/09/1997	US5666256 Electrical power distribution system apparatus-resident personality memory module
09/09/1997	US5666044 Start up circuit and current-foldback protection for voltage regulators
09/09/1997	US5666043 Electronic system
09/04/1997	WO1997032245A1 Reference voltage source with temperature compensation
09/03/1997	EP0793343A1 Current limitation programmable circuit for smart power actuators
09/03/1997	EP0793160A1 System-interconnected generator
09/03/1997	EP0793159A2 Circuit for generation of a supply voltage
09/03/1997	EP0792482A1 Process for controlling the power output of an electric circuit, in particular a sinusoidal wave source
09/03/1997	EP0737333B1 Current stabiliser with step-up transformer
09/03/1997	CN1158516A Boosting pulse generation circuit
09/03/1997	CN1158501A Intermediate potential generation circuit
09/03/1997	CN1158500A Potential generation circuit

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