| Patents for H01H 47 - Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current (7,312) |
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| 12/03/1985 | US4556926 Electromagnet driving circuit |
| 11/27/1985 | EP0162755A1 Control circuit for a bistable solenoid |
| 11/26/1985 | US4555743 Timer circuit |
| 11/19/1985 | USRE32035 Electromechanical transducer controlling device |
| 11/12/1985 | US4553061 Piezoelectric bimorph driven direct current latching relay |
| 11/05/1985 | US4551781 Control circuit for magnetic probe |
| 10/08/1985 | US4546403 Solenoid switching driver with solenoid current proportional to an analog voltage |
| 10/01/1985 | US4544987 Magnetically operated AC switching device with delay-on-dropout |
| 10/01/1985 | CA1194588A1 Feeder circuit for contral contact, and its use on the delay control of a relay at rest |
| 09/24/1985 | US4543493 For switching alternating current from a power source to a load |
| 09/18/1985 | EP0154834A2 Method and apparatus for controlling electromagnetic couplings |
| 08/27/1985 | US4538087 Alternating current driven piezoelectric latching relay and method of operation |
| 08/20/1985 | US4536818 Solenoid driver with switching during current decay from initial peak current |
| 08/06/1985 | US4533972 Electronic switching device having reduced power consumption |
| 07/30/1985 | US4532570 Relay circuit and relay therefor |
| 07/30/1985 | EP0070873A4 Driver circuit for use with inductive loads or the like. |
| 07/17/1985 | EP0148744A2 Control circuit for energizing the solenoid of a circuit breaker handle operator |
| 07/03/1985 | EP0146809A2 A switching circuit |
| 07/02/1985 | US4527216 Sub-milliamp mechanical relay control |
| 06/25/1985 | US4525634 Alternating current switching device |
| 06/11/1985 | US4523251 Electronic apparatus comprising an input stage with a binary output connected to a relay control circuit |
| 06/11/1985 | US4523194 Remotely operated downhole switching apparatus |
| 05/28/1985 | US4520420 Current control method and apparatus for electromagnetic valves |
| 05/28/1985 | US4520289 Drive circuit for a piezo-electric element |
| 05/21/1985 | CA1187593A1 Interface circuit for a transformer relay |
| 05/08/1985 | EP0140093A2 Contactor with a control stage and excess current releaser |
| 05/07/1985 | US4516185 Time ratio control circuit for contactor or the like |
| 04/23/1985 | US4513241 Foldback current limiting driver |
| 04/16/1985 | US4511947 Coil and coil driver control apparatus |
| 04/16/1985 | US4511945 Solenoid switching driver with fast current decay from initial peak current |
| 04/16/1985 | US4511829 Direct current control in inductive loads |
| 04/10/1985 | EP0136968A2 Control device for driving an electromagnet with a starting current followed by a holding current |
| 04/09/1985 | US4510550 Relay driver |
| 04/09/1985 | US4510472 High power RF relay switch trigger |
| 04/09/1985 | CA1185349A1 Electromagnetic switchgear |
| 04/02/1985 | US4509091 Methods and apparatus for controlling the engagement of gap-type electromagnetic couplings |
| 03/05/1985 | US4503480 Voltage compensating driver circuit |
| 02/28/1985 | WO1985000924A1 Voltage adaptive solenoid control apparatus |
| 02/19/1985 | CA1182894A1 Control system for plural transformer relays |
| 01/29/1985 | US4496941 For supplying current to a load |
| 01/15/1985 | US4493996 Semiconductor switch device |
| 01/09/1985 | EP0130184A1 Coil and coil driver control apparatus. |
| 01/08/1985 | US4492913 Current regulating circuit for an electric consumer |
| 12/25/1984 | US4490768 Apparatus for preventing arc discharge of transfer switch circuit for inductive load |
| 12/18/1984 | CA1179732A1 Driver circuit for use with inductive loads or the like |
| 11/27/1984 | US4485424 Process and circuit for exciting solenoid coil |
| 11/06/1984 | US4481555 Electromagnetic contact device |
| 11/06/1984 | US4481554 Voltage adaptive solenoid control apparatus |
| 10/31/1984 | EP0123624A1 Self-powered switching device responding to a temperature gradient |
| 10/30/1984 | US4480194 Circuit for supplying a control contact with power and application thereof to the control of a rest time delay of a relay |
| 10/29/1984 | EP0088769A4 Inductive load driver protection circuits having minimal power dissipation. |
| 10/24/1984 | EP0122370A1 Control circuit for a bistable relay |
| 10/23/1984 | US4479161 Switching type driver circuit for fuel injector |
| 10/16/1984 | US4477753 Safety interlock for an electric positioning system |
| 10/03/1984 | EP0120258A1 Energy economising circuit |
| 10/02/1984 | US4475140 Switching amplifier with high impedance input |
| 09/25/1984 | US4473861 Control device for an electromagnetic consumer in a motor vehicle, in particular a magnetic valve or an adjusting magnet |
| 08/29/1984 | EP0116987A1 Irradiation device |
| 08/28/1984 | CA1173503A1 Direct current control in inductive loads |
| 08/14/1984 | CA1172743A1 Circuit for remotely operating an electromagnetic relay |
| 08/07/1984 | US4464628 Relay tester |
| 08/07/1984 | CA1172341A1 Constant energy drive circuit for electromagnetic print hammers |
| 07/31/1984 | CA1171949A1 System for remotely controlling a load |
| 07/19/1984 | WO1984002808A1 Coil and coil driver control apparatus |
| 07/10/1984 | US4459631 Transient over-voltage protection circuit |
| 07/04/1984 | EP0112740A1 Electronic control circuit for a multi-mode apparatus comprising a mechanism with an electromagnet |
| 06/26/1984 | CA1169953A1 Drive circuit for a latching relay |
| 06/20/1984 | EP0111016A1 Integrated latching actuators |
| 06/19/1984 | US4455587 Electronic control circuit for the formation of a monostable switching behavior in a bistable relay |
| 06/12/1984 | CA1169142A1 Constant energy drive circuit for electromagnetic print hammers |
| 06/05/1984 | US4453194 Integrated power circuit with current sensing means |
| 05/30/1984 | EP0109540A2 Switching arrangement for actuating electromagnetic switching devices |
| 05/22/1984 | US4450427 Contactor with flux sensor |
| 05/01/1984 | US4446410 Control circuit for a solenoid-operated actuator |
| 04/25/1984 | EP0106743A2 Switching type circuit for fuel injector |
| 04/24/1984 | US4445079 Electromagnetic relays |
| 04/11/1984 | EP0105054A1 Circuit for the active control of limit switches arranged in pairs |
| 03/21/1984 | EP0103127A1 Relay controlled by electronic circuits |
| 03/20/1984 | US4438478 Power supplying apparatus |
| 03/13/1984 | US4437020 Electromagnetic switchgear |
| 02/28/1984 | US4434450 Controlled flux contactor |
| 02/21/1984 | US4433357 Drive circuit for a latching relay |
| 02/21/1984 | US4433356 Control circuit for transformer relay |
| 02/21/1984 | CA1162616A1 Energization circuit for a microwave oven |
| 02/01/1984 | EP0099807A1 Control circuit for stopping apparatuses, especially for lighting means |
| 01/31/1984 | US4429278 Multi-function time delay relay |
| 12/21/1983 | EP0096131A1 Process and circuit for exciting solenoid coil |
| 12/20/1983 | US4422123 Circuit for driving solenoid at high speed with choke coil |
| 12/20/1983 | CA1159104A1 Programmable power line interrupter |
| 11/08/1983 | US4414602 Current director and interface circuit for a transformer relay |
| 10/11/1983 | US4409640 Abort cycle timer |
| 10/11/1983 | US4409638 Integrated latching actuators |
| 10/11/1983 | US4409552 Cyclic means with magnetic latch for checking switch integrity |
| 10/11/1983 | CA1155185A1 Vital electronic time delay circuit |
| 10/04/1983 | US4408250 Circuit for remotely operating an electromagnetic relay |
| 10/04/1983 | US4408129 Constant energy drive circuit for electromagnetic print hammers |
| 09/21/1983 | EP0088769A1 Inductive load driver protection circuits having minimal power dissipation |
| 09/13/1983 | US4404613 Double switch fuse assembly |
| 09/07/1983 | EP0087618A1 Energy saving energising circuit for relays in an apparatus with a charging capacitor, in particular an audio frequency remote-control receiver |
| 09/07/1983 | EP0087583A1 Integrated power circuit with current sensing means |