Patents
Sitemap › G05 - Controlling; Regulating › G05F - Systems for regulating electric or magnetic variables › 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)
10/1983
10/11/1983US4409677 Semiconductor integrated circuit device
10/11/1983US4409648 Apparatus for preventing phase control mechanism malfunction
10/11/1983CA1155174A1 Voltage regulator using saturable transformer
10/05/1983EP0090514A1 A temperature tracking D.C. motor speed controlled fan
10/05/1983EP0090212A2 Apparatus for automatically tracking the optimum working point of a D.C. voltage source
10/04/1983US4408153 Current supplementation circuit for power supply
10/04/1983US4408129 Constant energy drive circuit for electromagnetic print hammers
10/04/1983US4407903 Electric dc source
09/1983
09/21/1983EP0089048A2 Circuit for detecting and memorising defects in power supply systems
09/20/1983US4405968 Control circuits
09/14/1983EP0088082A1 Converter with a plurality of regulated additional outputs.
09/13/1983US4404567 Printing head drive circuit for thermal printer
09/13/1983US4404473 Direct current power controller
09/13/1983US4404472 Maximum power control for a solar array connected to a load
09/07/1983EP0087583A1 Integrated power circuit with current sensing means
09/07/1983EP0087541A1 Power supply circuit and transmission device using such a power supply circuit
09/07/1983EP0087429A1 Marine drive system
09/01/1983WO1983003035A1 Electronic current interrupter included in a dc distribution system
08/1983
08/30/1983US4401936 Protection system for series regulator
08/24/1983EP0086252A1 Welding current source for arc pulse welding
08/23/1983US4400661 Voltage regulation and battery dissipation limiter circuit
08/23/1983US4400660 Wide bandwidth high voltage regulator and modulator
08/23/1983US4400659 Methods and apparatus for maximizing and stabilizing electric power derived from wind driven source
08/23/1983US4400629 Delta-star connection
08/23/1983US4400613 Temperature controller for a fusing roller
08/23/1983CA1152611A1 Propulsion motor control apparatus and method
08/23/1983CA1152562A1 Dual speed control circuit for power flow through an inverter
08/16/1983CA1152153A1 Uninterruptible power supply with load regulation of standby voltage source
08/10/1983EP0085268A1 Device for the metered supply of an electrical load
08/09/1983US4398132 Electron beam current stabilizing device
08/09/1983US4398106 On-chip Delta-I noise clamping circuit
08/03/1983EP0084651A1 Power conversion equipment
08/02/1983US4396986 Digital DC power supply with current and voltage measurement
08/02/1983CA1151234A1 Method of and means for controlling electrical motors
07/1983
07/27/1983EP0084146A2 Input signal responsive pulse generating and biasing circuit for integrated circuits
07/26/1983USRE31325 Stepping AC line voltage regulator
07/26/1983US4395674 Regulating system employing an RMS composite controller
07/26/1983US4395660 Lamp dimmer circuit utilizing opto-isolators
07/26/1983US4395481 Method for the manufacture of resist structures
07/26/1983CA1150785A1 Mos voltage divider
07/13/1983EP0083487A1 Static VAR generator
07/12/1983US4393157 Variable inductor
07/08/1983EP0073818A4 Welding apparatus.
07/07/1983WO1983002215A1 Sterilization process and apparatus
07/06/1983EP0083216A2 Stabilizing power supply apparatus
07/05/1983US4392088 Device for charging a charging capacitor
06/1983
06/29/1983EP0082160A1 Static reactive compensator.
06/28/1983US4390940 Process and system for producing photovoltaic power
06/28/1983US4390833 Voltage regulator circuit
06/28/1983US4390794 Circuit arrangement for controlling the switch-on of supply voltage
06/28/1983CA1149026A1 Constant-voltage generator for integrated circuits
06/28/1983CA1149017A1 Rectifier system with failure alarm circuitry
06/22/1983EP0081880A2 Control circuit for keeping the working voltage of an electricity consumer at a constant level
06/22/1983EP0081752A2 Device for maintaining the voltage of a single or multiphase AC supply mains submitted to changing loads at a constant level
06/22/1983EP0081593A1 Vehicular power source system
06/21/1983US4389581 Pulse duty control system
06/08/1983EP0080788A1 Pulsed thyristor trigger control circuit
06/07/1983US4387324 Remote responsive television receiver ferroresonant power supply protection circuit
06/07/1983CA1147784A1 Glass melting furnace with control of scr condution time
05/1983
05/26/1983WO1983001883A1 Remote responsive television receiver power supply protection circuit
05/24/1983US4385242 Phase line derived cosine-wave generator and gate pulse generator for thyristor control using such generator
05/24/1983US4385241 A.C. Electricity power supply system and methods of and apparatus for load control thereon
05/18/1983EP0079169A1 A power controller
05/17/1983CA1146627A1 Power supply circuit
05/11/1983WO1983001694A1 Circuit arrangement for power control
05/10/1983US4383216 AC Measurement means for use with power control means for eliminating circuit to circuit delay differences
05/10/1983US4383201 Light flicker eliminating circuit
05/10/1983CA1146237A1 System for generating and autocontrolling the voltage or current wave form applicable to processes for the electrolytic colouring of anodized aluminium
05/03/1983CA1145822A1 Transformer for voltage regulators
04/1983
04/26/1983US4381532 Constant energy drive circuit for electromagnetic print hammers
04/19/1983US4380730 Electrical power regulating apparatus and method
04/14/1983WO1983001351A1 Voltage regulation and battery dissipation limiter circuit
04/13/1983EP0076599A2 Power unit
04/13/1983EP0076510A2 Spray gun
04/12/1983US4380089 Battery-powered transmitter including current control circuit
04/06/1983EP0075763A2 Circuit generating a D.C. output voltage free of voltage variations of the D.C. supply
03/1983
03/31/1983WO1983001157A1 Efficient current modulator useful with inductive loads
03/30/1983EP0075129A2 Voltage dropping or voltage increasing electronic circuit
03/29/1983US4378522 Adjustable current source
03/29/1983CA1143802A1 Circuit protection devices comprising ptc elements
03/29/1983CA1143789A1 Transistorized voltage regulator
03/23/1983EP0074536A2 Electric commutation apparatus for a control device for a motor-driven vehicle
03/23/1983EP0074391A1 Regulated power supply.
03/22/1983US4377780 Means for damping mechanical torsional oscillations of an electric a.c. generator
03/22/1983CA1143442A1 Active quadrature current reference source
03/17/1983WO1983000964A1 Converter with a plurality of adjustable additional outputs
03/17/1983WO1983000851A1 Marine drive system
03/16/1983EP0073825A1 Regulated converter with volt-balancing control circuit.
03/16/1983EP0073818A1 Welding apparatus.
03/08/1983CA1142607A1 Band-gap voltage reference
03/03/1983WO1983000756A1 A second order temperature compensated band gap voltage reference
03/01/1983US4375662 Method of and apparatus for enabling output power of solar panel to be maximized
03/01/1983US4375614 Voltage regulator for direct current power supply
03/01/1983US4375595 Switched capacitor temperature independent bandgap reference
03/01/1983US4375593 Switching apparatus for load matching of wind-driven electrical generators
02/1983
02/23/1983EP0072589A2 Current stabilizing arrangement
02/22/1983US4375077 Power supply regulator circuit employing a transformer having a control winding
02/22/1983CA1141822A1 Soft turn-on power
02/22/1983CA1141820A1 Temperature compensated ic voltage reference
02/15/1983US4374356 Constant voltage circuit
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