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)
01/1985
01/08/1985US4492913 Current regulating circuit for an electric consumer
01/08/1985US4492841 Anticoagullant, hypoglycemic agent
01/08/1985CA1180792A1 Dynamic self-checking safety circuit means
01/08/1985CA1180750A1 Polyphase static inverter
01/02/1985EP0129839A1 Variable transformer and voltage control system
01/01/1985US4491113 Current regulator for an electromagnetic consumer for use with internal combustion engine control
12/1984
12/27/1984EP0129133A1 Power supply circuit for electrical apparatuses with automatic mains supply selection
12/27/1984EP0128988A1 Method and device for eliminating interferences due to load variation in switched-mode power supplies
12/27/1984CA1180052A Circuit for generating a sinusoidal synchronisation voltage for firing thyristors
12/25/1984US4490779 Electric power system
12/19/1984EP0128182A1 Method and apparatus for automatically setting the demand phase lag input to an induction-motor power factor controller.
12/18/1984CA1179731A1 High frequency switching circuit
12/11/1984US4488107 Electrical safety device for controlling a printing machine
12/11/1984US4488060 High voltage ramp rate control systems
12/11/1984CA1179404A1 Method of and apparatus for controlling loads on an electrical power supply
12/05/1984EP0127187A2 Power converter
12/05/1984EP0127163A1 Fault recognition circuit for parallel-load feeding-power supply devices
12/04/1984US4486821 Power source for a developing bias
11/1984
11/27/1984US4485432 Electronic voltage drop circuit
11/27/1984US4485427 Fold-back power supply
11/27/1984US4485423 Power source for control equipment
11/27/1984US4485342 Load driving circuitry with load current sensing
11/27/1984CA1178656A1 Electronic speed regulator for a d.c. motor
11/20/1984US4484244 Protection circuit for integrated circuit devices
11/20/1984CA1178338A1 Switched capacitor temperature independent bandgap reference
11/20/1984CA1178336A1 Base drive circuit for power transistors
11/20/1984CA1178335A1 Talk filtered power supply
11/20/1984CA1178334A1 Electric utility demand limiting device and method
11/14/1984EP0124918A1 Current-source arrangement
11/14/1984EP0124864A1 Power control apparatus with optical isolation feedback means
11/13/1984US4482985 Semiconductor integrated circuit
11/13/1984US4482855 Current control apparatus for electric power systems
11/13/1984US4482815 Floating back-up power supply
11/07/1984EP0124030A1 Power supply for series fed electronic circuits
11/07/1984EP0123884A2 Charging/discharging circuit
11/07/1984EP0030980B1 Stabilized dc power source
10/1984
10/31/1984EP0123098A2 Switching power supply regulation
10/30/1984CA1176902A1 Method for the manufacture of resist structures using short wave uv with a copolymer including chloro or cyano substituted acrylic derivative
10/24/1984EP0122607A1 Constant potential/constant current automatic control system for air-carbon arc metal removal
10/24/1984EP0122492A2 Starting circuit for a switched mains power supply
10/23/1984US4479085 Power source circuit
10/17/1984EP0121793A1 CMOS circuits with parameter adapted voltage regulator
10/10/1984EP0121287A1 Current stabilising arrangement
10/09/1984US4476521 Perin rectifier apparatus
10/09/1984US4476478 Semiconductor read only memory and method of making the same
10/09/1984US4476428 Power supply device
10/09/1984US4476399 Stabilized power source parallel operation system
10/02/1984US4475077 Current control circuit
10/02/1984CA1175503A1 Cmos turn-on circuit
10/02/1984CA1175479A1 Multi-voltage transformer input circuits with primary reactor voltage control
09/1984
09/27/1984WO1984003781A1 Voltage reference circuit
09/18/1984US4472674 Method of static reactive power compensation
09/13/1984EP0087429A4 Marine drive system.
09/11/1984US4471232 Method of and apparatus for controlling loads on an electrical power supply
09/04/1984US4470005 Static VAR generator having a thyristor circuit arrangement providing reduced losses
09/04/1984US4469998 Three-phase power factor controller with induced emf sensing
08/1984
08/30/1984WO1984003403A1 Mos depletion load circuit
08/30/1984WO1984003372A1 A current source circuit having reduced error
08/29/1984EP0116748A1 On-load tap changer
08/28/1984US4468569 Means of improving the utilization of energy available from a solar electric generator
08/28/1984CA1173519A1 Semiconductor integrated circuit
08/28/1984CA1173504A1 Direct current load supply circuit having two different output characteristics
08/21/1984US4467258 Power factor correction for variable speed drive
08/21/1984CA1173112A1 Electric supply for ion therapy
08/21/1984CA1173107A1 Digital controller
08/15/1984EP0115897A1 Current source arrangement
08/14/1984US4465966 Controlled ferroresonant voltage regulator providing immunity from sustained oscillations
08/10/1984EP0105331A4 Controlled ferroresonant voltage regulator with increased stability.
08/07/1984CA1172341A1 Constant energy drive circuit for electromagnetic print hammers
08/07/1984CA1172314A1 Dual mode dc/dc converter
07/1984
07/31/1984CA1171907A1 Pulsed thyristor trigger control circuit
07/25/1984EP0113953A1 On-load tap changer with vacuum switches
07/25/1984EP0113951A1 Phase detector for three-phase power factor controller
07/25/1984EP0113865A1 Semiconductor integrated circuit
07/25/1984EP0074391A4 Regulated power supply.
07/24/1984US4461992 Temperature-compensated current source circuit and a reference voltage generating circuit using the same
07/24/1984US4461991 Current source circuit having reduced error
07/24/1984US4461990 Phase control circuit for low voltage load
07/24/1984US4461690 System for equalizing current flow in a plurality of branch circuits such as are used in electroplating baths
07/24/1984EP0073825A4 Regulated converter with volt-balancing control circuit.
07/24/1984CA1171471A1 Power control means for eliminating circuit to circuit delay differences and providing a desired circuit delay
07/24/1984CA1171459A1 Voltage regulator utilizing a static var generator with half period averaging and saturating type firing angle control
07/18/1984EP0113503A1 Three-phase power factor controller with induced EMF sensing
07/18/1984EP0113458A1 MIS semiconductor integrated circuit
07/18/1984EP0113400A2 Regulated current source for thermal printhead
07/17/1984US4460955 Stabilizing power supply apparatus
07/17/1984US4460864 Voltage reference circuit
07/10/1984US4459574 Driving circuit for a coil
07/10/1984US4459539 Charge transfer constant volt-second regulator
07/10/1984US4459538 Power supply circuit
07/10/1984US4459537 Up-down voltage regulator
07/10/1984US4459531 Polyphase static inverter
07/10/1984US4459528 Phase detector for three-phase power factor controller
07/10/1984US4459515 Phase-controlled ballast having shifting control
07/10/1984CA1170716A1 Voltage sensing apparatus for a voltage regulating transformer
07/04/1984EP0112740A1 Electronic control circuit for a multi-mode apparatus comprising a mechanism with an electromagnet
07/04/1984EP0112355A1 Ferroresonant power supply stabilizer circuit
07/03/1984CA1170311A1 Regulated converter with volt-balancing control circuit
06/1984
06/26/1984US4456833 Regulated power supply
06/26/1984CA1169941A1 Inductive displacement transducer