| 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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| 09/23/1992 | CN2116960U Pulse micro-current coil |
| 09/22/1992 | CA1307816C Energization of an electromagnet |
| 09/16/1992 | CN2116275U Telecontrol socket for colour television |
| 09/16/1992 | CN2116274U Electricity saving and silencing operation controller of a.c contactor |
| 09/09/1992 | CN2115583U Micro-power loss contactor |
| 09/09/1992 | CN2115580U Impact relay reflecting steady-state current |
| 09/09/1992 | CN2115579U Noise elimination & protection coil power saving device |
| 09/08/1992 | US5146400 Circuit arrangement for producing current pulses of a given shape in an inductive load |
| 09/03/1992 | DE4106597A1 Electromagnet control circuit providing energy saving - allows periodic opening and closing of switch to reduce holding power for electromagnet |
| 09/02/1992 | CN2114889U Electricity-saving copper-saving sound-damping contactor |
| 08/26/1992 | EP0500024A2 Pulse relay |
| 08/26/1992 | CN2114218U Electronic timing universal switch |
| 08/26/1992 | CN1063967A Relays and contactors with low power consumption |
| 08/25/1992 | US5142435 Filter capacitor precharge apparatus |
| 08/12/1992 | EP0498500A1 Appliance at least comprising an electric motor and a circuit for driving the electric motor |
| 08/12/1992 | CN2112884U Electricity-saving timing power supply device |
| 08/11/1992 | US5138516 Fault sensing and driving system for output driver device |
| 08/06/1992 | DE4103373A1 Throughflow water heater with safety cut=out - has monitoring circuit to switch off power if one or more heating elements have voltage applied with no water flow |
| 08/04/1992 | CA1306048C Electromagnetic contactor with universal control |
| 08/04/1992 | CA1306047C Electromagnetic contactor with discriminator for determining when aninput control signal is true or false and method |
| 08/04/1992 | CA1305990C Molded case circuit breaker actuator-accessory module |
| 07/29/1992 | CN2111560U Saving device of alternating current contactor |
| 07/28/1992 | US5134537 Negative voltage clamp circuit for controlling currents in inductive loads |
| 07/28/1992 | US5134375 Relay checking device |
| 07/23/1992 | WO1992012564A1 Device and method for operating electrical equipment |
| 07/22/1992 | EP0495388A1 Safety switch unit |
| 07/22/1992 | CN2110921U Capacitor type antijamming dc relay |
| 07/16/1992 | DE4100577A1 Vorrichtung und verfahren zum betrieb eines elektrischen geraetes Apparatus and method for operating an electrical device |
| 07/08/1992 | CN2109631U Ac contactor power saving long life silencing controller |
| 07/08/1992 | CN2109630U Power saving device for ac contactor, relay and electromagnetic iron |
| 07/08/1992 | CN1062617A Full-electronic high-performance electricity-saving silencer |
| 07/07/1992 | US5128826 D.C. solenoid |
| 07/07/1992 | US5128825 Electrical contactor with controlled closure characteristic |
| 07/01/1992 | EP0493003A2 Voltage regulator, power supply and calibrator |
| 07/01/1992 | CN2108988U Electronic energy saver |
| 06/30/1992 | US5126515 Acceleration detecting system |
| 06/29/1992 | CA2057163A1 Voltage controlled power supply |
| 06/26/1992 | CA2057282A1 Acceleration sensor |
| 06/24/1992 | CN2108359U Soundless electricity-saving device for a.c.contactor |
| 06/24/1992 | CN2108358U Auto-controlled converter for household electric appliances |
| 06/23/1992 | CA1304125C Peripheral device power activation circuit and method therefor |
| 06/17/1992 | CN2107713U Universal time relay |
| 06/17/1992 | CN2107712U Time-delay protector for machine cutting off |
| 06/16/1992 | CA1303719C Power source switching circuit |
| 06/10/1992 | CN2107073U Delay protection socket for refrigerators |
| 06/10/1992 | CN2107059U Open-phase or overload protection for electric machines |
| 06/09/1992 | US5121284 Driver circuit with feedback for limiting undershoot/overshoot and method |
| 06/09/1992 | CA1303169C Protection module for contactor electro-magnet |
| 06/09/1992 | CA1303144C Relay, cooking apparatus using the same, and power reducing method thereof |
| 06/03/1992 | CN2106414U Electricity-saving silencing coil for ac contactor |
| 06/03/1992 | CN2106413U Electromagnetic electricity-saving device |
| 06/02/1992 | US5119312 Circuitry for surveillance of switching state of a power transistor |
| 05/27/1992 | CN2105760U Contactless energy-saving device for electronic ac contactor |
| 05/27/1992 | CN2105759U Energy-saving device for ac contactor |
| 05/20/1992 | CN2105122U Improved energy-saving noise-reducing contactor |
| 05/13/1992 | CN2104508U High-capacity remote-control switch |
| 05/13/1992 | CN2104507U Soundproofing contactor |
| 05/12/1992 | US5113308 Actuator with a built-in reed switch |
| 05/12/1992 | US5113307 Current controlled solenoid driver |
| 05/07/1992 | DE4134396A1 Automation system for safe operation of mining equipment - has duplicated control units with watchdog circuits to identify faults and operate brakes |
| 05/06/1992 | EP0483591A2 Low tension switch device |
| 05/06/1992 | CN2103858U Electronic program-controller for electric fan |
| 04/30/1992 | WO1992007415A1 Current regulating circuit for electromagnetic proportional controller |
| 04/30/1992 | WO1992007374A1 Safety circuits |
| 04/30/1992 | DE4033800A1 Emergency switch=off unit for alarm circuit - has optionally operable switch with rest contacts also two channels connected to supply voltage |
| 04/29/1992 | EP0482437A2 Self-initiating emergency shutdown device |
| 04/29/1992 | CN2103202U Refrigerator electric saver |
| 04/23/1992 | DE4134056A1 Electromagnetic adjuster current controller - has measuring resistor incorporated in lead between power transistor and magnetic coil |
| 04/21/1992 | US5107391 Circuit for driving one or more electromagnetic relays which uses minimum power and results in minimum temperature in the relays |
| 04/14/1992 | US5105329 Apparatus for driving the armature of an electric stapler |
| 04/08/1992 | CN2101326U Noiseless energy saving operating apparatus for ac contactor |
| 03/24/1992 | US5099384 Control circuit |
| 03/18/1992 | EP0475552A2 Control circuit for a multiple power level solenoid |
| 03/18/1992 | EP0474945A1 Method and system for driving multiple latching relays |
| 03/18/1992 | CN2099412U Delay switch with current limiting function |
| 03/11/1992 | CN2098732U Energy-saving and flutter-proof device for a.c contactor |
| 03/11/1992 | CA2033534A1 Control circuit for a multiple power level solenoid |
| 03/03/1992 | US5093770 Electrical energy storage system |
| 03/03/1992 | US5093756 Sequential-delayed power supplying circuit |
| 03/03/1992 | US5092597 Solid-state flipper control circuit |
| 02/26/1992 | EP0471891A2 Circuit arrangement for controlling a group of relays |
| 02/22/1992 | CA2049469A1 Circuit arrangement for driving a group of relays |
| 02/18/1992 | USRE33825 Sub-milliamp mechanical relay control |
| 02/12/1992 | CN2096127U Household water-proof switch |
| 02/06/1992 | DE4024496A1 EM valve operating circuitry - has pair of control stages to provide different operating voltage levels |
| 01/29/1992 | CN1058301A 可编程序的反时限延迟电路 Inverse programmable delay circuit |
| 01/29/1992 | CN1058290A Two-step arc extinguishing ac contactor |
| 01/29/1992 | CN1058288A Small universal electromagnet operated at wide voltage range |
| 01/28/1992 | US5083982 System for controlling a continuously variable transmission of a motor vehicle |
| 01/22/1992 | EP0467675A2 Programmable inverse time delay circuit |
| 01/22/1992 | EP0466977A2 Switching device for switching of high loads |
| 01/22/1992 | CN2094116U Soundless power-economizing coil for ac contactors |
| 01/22/1992 | CN2094115U Silencing, remanence-eliminating and economizing protector for coils of electromagnetic switches |
| 01/21/1992 | US5083116 Contact sensing module embodying loop power supply and state sensing for relays and other contacts |
| 01/19/1992 | CA2046077A1 Programmable inverse time delay circuit |
| 01/16/1992 | DE4021486A1 Operation circuitry for electromagnetic load devices - having variable voltage requirements that can set by regulating circuit |
| 01/07/1992 | US5079667 Relay driving circuit for a latch-in relay |
| 01/02/1992 | DE4110411A1 Klappankerrelais, insbesondere fuer kraftfahrzeuge Hinged armature relays, in particular for motor vehicles |
| 12/25/1991 | CN2091493U Electron control saving contactor |
| 12/17/1991 | US5073724 Programmable inverse time delay circuit |