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)
12/1994
12/07/1994	EP0280698B1 Universal solid state power controller
12/07/1994	CN2184943Y Automatic regulator for accumulator terminal voltage
12/07/1994	CN2184942Y AC voltage stabilizer
12/07/1994	CN2184941Y Step-by-step ac voltage-stabilized source
11/1994
11/30/1994	CN2184289Y Load voltage regulator for three-phase permanent magnet A.C. generator
11/29/1994	US5369354 Intermediate voltage generating circuit having low output impedance
11/24/1994	DE4336438C1 Method for parameterising a digital voltage regulator, in particular for controlling a transformer having a stepping switch
11/23/1994	EP0625824A2 Semiconductor integrated circuit device
11/23/1994	EP0625814A1 Electronic trip device comprising a power supply control
11/23/1994	EP0625273A1 Load programmable output buffer
11/22/1994	US5367247 Critically continuous boost converter
11/17/1994	EP0624951A1 Control circuit for slowly turning off a power switch
11/17/1994	EP0594833A4 Vernier control system for subsynchronous resonance mitigation.
11/16/1994	CN2183005Y Multi-path dc regulated power supply with automatic displaying function
11/16/1994	CN1026642C Procedure and device for overload and shortcircuit protection of output drivers
11/15/1994	US5365420 High efficiency intrinsically safe power supply
11/15/1994	US5365161 Stabilized voltage supply
11/15/1994	US5365157 Voltage regulator employing a triac to deliver voltage to a load
11/15/1994	US5365148 Sinusoidal inductorless dimmer providing an amplitude attenuated output
11/15/1994	US5365085 Power semiconductor device with a current detecting function
11/10/1994	DE4337229C1 Power-feeding device
11/09/1994	EP0623991A1 Dimming device for a load
11/09/1994	CN2182423Y Alternating current voltage-stabilized source
11/09/1994	CN1094872A Device for controlling the variation of the power and/or the speed of a load
11/08/1994	US5363288 Programmable high voltage power supply with regulation confined to the high voltage section
11/08/1994	US5363035 Phase controlled transformer
11/08/1994	US5362991 For a regulated terminator
11/06/1994	CA2122648A1 Power and/or speed control device
11/03/1994	DE4324701C1 Method and circuit arrangement for controlling the extreme value of the operating point of a power transducer, preferably of a regenerative power supply system
11/02/1994	EP0622974A1 Improved rectifier for powering a DC arc furnace
11/02/1994	EP0622889A2 Low power pre-regulator power supply circuit
11/02/1994	EP0621993A1 Power supply
11/02/1994	EP0600003A4 Method for temperature-compensating zener diodes having either positive or negative temperature coefficients.
11/02/1994	CN2181707Y Power supply for digital indicator of two-wire transducer
11/01/1994	US5361007 Apparatus for controlling consumption power for GaAs FET
10/1994
10/27/1994	DE4410978A1 Method and circuit for improving the short-circuit stability of a bipolar IGBT
10/26/1994	CN2181022Y Large-power constant current and voltage device formicrocomputer
10/26/1994	CN2181021Y Digital compensating type power voltage stabilizer
10/26/1994	CN1094170A Switch type serial regulated AC power supply
10/26/1994	CN1026375C Reactive power compensating apparatus with higher harmonic suppressing function
10/25/1994	US5359280 Bilateral power converter for a satellite power system
10/25/1994	US5359278 Zero current switching circuit and converting apparatus using the same
10/25/1994	US5359275 Load current fundamental filter with one cycle response
10/25/1994	US5359237 DC level generator
10/25/1994	US5359180 Power supply system for arcjet thrusters
10/19/1994	EP0620635A1 Controlled threephase current rectifier
10/19/1994	EP0620513A1 Balanced voltage-to-current converter with quiescent current control
10/13/1994	WO1994023352A1 System for controlling an electrostatic precipitator using digital signal processing
10/13/1994	DE4412518A1 Starting (ignition) device for a discharge lamp
10/13/1994	DE4410902A1 Power supply unit
10/12/1994	EP0619200A1 Stepped compound voltage control circuit of battery in combination with field-control DC motor driving circuit
10/12/1994	EP0598849A4 Low power switching power supply circuits and methods.
10/12/1994	CN2179600Y Electrothermal device voltage stablizing temp. regulator without transformer
10/12/1994	CN1093508A Base current-control circuit of an output transistor
10/12/1994	CN1093500A Polyvalent power system
10/11/1994	US5355298 Conversion apparatus including latch and non-latch type functions
10/11/1994	US5355078 Semiconductor integrated circuit for a stabilized power supply circuit
10/11/1994	US5355077 High efficiency regulator with shoot-through current limiting
10/11/1994	US5355025 Active power line conditioner with synchronous transformation control
10/07/1994	CA2093541A1 Power supply controller for controlling supply of a load, and a method thereof
10/06/1994	DE4226047C2 Schaltkreis zur Erzeugung einer internen Spannungsversorgung mit einer Steuerschaltung zur Durchführung eines Belastungstests ("Burn-in-Test") Circuit for generating an internal power supply with a control circuit for performing an exercise stress test ("burn-in test")
10/05/1994	EP0618678A2 Digital pulse width modulator circuit with proportional dither
10/05/1994	EP0618518A1 Fail-safe analog interface
10/05/1994	EP0543826B1 Process and device for driving an electromagnetic consumer
10/05/1994	CN2178910Y 自动调压器 Automatic voltage regulator
10/04/1994	US5353215 Tracking run/standby power supplies
10/04/1994	US5353019 Process for monitoring the output signals from a transmitting device
10/04/1994	US5352936 High voltage tolerant voltage pump constructed for a low voltage CMOS process
10/04/1994	US5352935 Semiconductor integrated circuit device with internal voltage controlling circuit
10/04/1994	US5352931 Multi-voltage control circuit of tree branch network
10/04/1994	US5352930 System powered power supply using dual transformer HVAC systems
09/1994
09/29/1994	WO1994022199A1 Process and regulating arrangement for d.c. transmission and a regulating device
09/29/1994	DE4317557C1 Device for regulating the welding current during spot welding, having a measurement transmitter, which operates using the root mean square method, for rapid detection of the actual value of the resistance between the electrodes
09/29/1994	DE4310044A1 Circuit arrangement for generating an adjustable, controlled direct voltage for a control unit of a device which is operated by three-phase current, in particular of a three-phase asynchronous motor
09/28/1994	EP0616740A1 Dc-to-dc converter.
09/27/1994	US5351181 Low cost active power line conditioner
09/27/1994	US5350997 Step-up voltage converter with overcurrent protection
09/21/1994	EP0616416A1 Conversion apparatus
09/21/1994	EP0616414A1 Controllable compound voltage DC/AC transforming circuit
09/21/1994	EP0616408A1 Graded multi-voltage control circuit
09/21/1994	EP0616407A1 Graded multi-voltage control circuit
09/21/1994	EP0615653A1 Inductive load dump circuit
09/21/1994	EP0447422B1 A linkage system for loading machines
09/21/1994	CN2177962Y Semiconductor isolation type switch regulated power supply
09/20/1994	US5349559 Internal voltage generating circuit
09/20/1994	US5349522 Method and apparatus for controlling the output voltage of an AC electrical system
09/20/1994	US5349285 Power supply circuit
09/20/1994	US5349283 Automatic voltage control circuit by using reactive power
09/20/1994	US5349272 Multiple output ballast circuit
09/20/1994	US5349159 Consumable-electrode AC gas shield arc welding method and apparatus therefor
09/15/1994	WO1994020892A1 Low cost active power line conditioner
09/15/1994	CA2155663A1 Low cost active power line conditioner
09/14/1994	EP0614568A1 Programmable non-volatile analog voltage source devices and methods
09/14/1994	EP0553220B1 Device for establishing a current in an analogue part of an integrated logic and analogue circuit
09/14/1994	CN1092219A AC voltage-regulating device or circuit
09/14/1994	CN1092199A Current limiting solenoid driver
09/13/1994	US5347419 Current limiting solenoid driver
09/13/1994	US5347211 Selectable output power converter
09/13/1994	US5347209 Voltage control in pulsed system by predict-ahead control
09/13/1994	US5347172 Oscillatorless substrate bias generator

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