| 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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| 08/20/1998 | WO1998036438A1 A method of connecting a voltage to a circuit, a switch and use of the switch |
| 08/19/1998 | CN2288502Y Energy-saving type electric network flashover keeper |
| 08/18/1998 | US5796223 Method and apparatus for high-speed driving of electromagnetic load |
| 08/12/1998 | EP0857548A1 Safety device for robot |
| 08/12/1998 | EP0857251A1 Drive circuit |
| 08/12/1998 | EP0811233B1 Circuit for driving a contactor |
| 08/12/1998 | CN1190487A Control method and device for switchgear actuator |
| 08/11/1998 | US5793599 Control of the attraction of an armature of a switching magnet and a switching arrangement for performing the method |
| 08/11/1998 | US5793232 Driver circuit for an injector |
| 08/11/1998 | US5793171 Control circuit for controlling the driving of a DC motor for a mirror assembly of a vehicle |
| 08/11/1998 | CA2093064C Contact status monitor |
| 08/05/1998 | EP0729400B1 Safety reset device |
| 08/04/1998 | US5790364 Control system for linear solenoid valve |
| 07/30/1998 | WO1998033255A1 Reverse battery protecting device for the on-board electric network of a vehicle |
| 07/29/1998 | EP0855598A2 Monitoring arrangement with monitoring switches |
| 07/23/1998 | DE19702116A1 Schutzvorrichtung gegen Falschpolung im elektrischen Bordnetz eines Fahrzeuges Guard against wrong in the electrical system of a vehicle |
| 07/22/1998 | EP0854491A1 Contactor-circuit breaker |
| 07/21/1998 | US5784245 Solenoid driver and method for determining solenoid operational status |
| 07/21/1998 | US5784244 For limiting an electrical switchgear closing velocity |
| 07/16/1998 | WO1998031034A1 Reduced tensioning time for electronically controlled switch contactors |
| 07/16/1998 | DE19755454A1 Control circuit for operation of relay |
| 07/07/1998 | US5777837 Power supply circuit |
| 07/02/1998 | WO1998028764A1 Safety relay |
| 07/01/1998 | CN2285512Y Arcless ac relay contactor |
| 06/30/1998 | US5774323 Detection of contact position from coil current in electromagnetic switches having AC or DC operated coils |
| 06/30/1998 | US5774322 Three wire power supply circuit |
| 06/25/1998 | WO1998027566A1 Method and system for detecting relay failure |
| 06/25/1998 | DE19654378A1 Energising circuit for relay with at least one excitation coil operating at high temperature and high voltage e.g. for motor vehicle applications |
| 06/23/1998 | US5771146 Safety circuit |
| 06/18/1998 | DE19707548C1 Motorised drive e.g. for electric multiple-contact or stepping switch |
| 06/16/1998 | CA2106233C Solid state relay |
| 06/04/1998 | WO1998024106A1 Solenoid driver and method for determining solenoid operational status |
| 06/04/1998 | WO1998024105A1 Electromagnet for an electrovalve |
| 05/28/1998 | DE19648899A1 Elektromagnet für Magnetventil Solenoid for solenoid valve |
| 05/26/1998 | US5757605 Pulse-width modulation control system for multiple solenoids utilizing a single A/D converter in which the A/D conversion time is used to control the sequential operation of the solenoids |
| 05/26/1998 | US5757598 Ground fault circuit interrupter |
| 05/26/1998 | US5757214 PWM driver for an inductive load with detector of a not regulating PWM condition |
| 05/26/1998 | US5757088 Remote control device especially for conveying, spraying and distributing machines for concrete and mortar |
| 05/20/1998 | EP0792512B1 Protective safety combination |
| 05/20/1998 | DE19647836A1 Fail-safe control system for electromechanical linear drive units e.g. for hospital bed |
| 05/20/1998 | CN2282266Y AC vacuum contactor with rated current as 40A |
| 05/20/1998 | CN2282264Y Large power output contactless pressure relay |
| 05/19/1998 | US5754387 Method of monitoring contactor operation |
| 05/19/1998 | US5754386 Trip device for an electric powered trip unit |
| 05/13/1998 | EP0605496B1 Integrity ensuring device and method, in particular for a light barrier |
| 05/13/1998 | CN2281583Y Energy saving coil of A. C. contactor |
| 05/13/1998 | CN1181606A Switch |
| 05/06/1998 | EP0840342A2 Relay drive circuit |
| 05/05/1998 | US5748432 Method and apparatus for preventing coil induced delay in a automatic transfer switch |
| 05/05/1998 | US5748427 Method and system for detecting relay failure |
| 05/05/1998 | US5747895 System for temporarily preserving signal-flow around a signal switch |
| 04/29/1998 | EP0838899A2 Drive circuit |
| 04/16/1998 | DE19640190A1 Elektrische Schaltung zur Ermittlung eines Laststroms An electrical circuit for detecting a load current |
| 04/15/1998 | EP0836064A2 Power supply for a relay |
| 04/15/1998 | EP0836063A2 Method of energizing a relay |
| 04/15/1998 | CN2279032Y 真空磁力起动器 Vacuum Magnetic Starter |
| 04/15/1998 | CN1038078C Hybrid switch using one-shot firing pulse |
| 04/14/1998 | US5740005 Solenoid valve booster |
| 04/09/1998 | WO1998014788A1 Electrical circuit to detect load current |
| 04/08/1998 | CN2278270Y No feedback starter electronic electromagnetic composite relay |
| 04/07/1998 | US5737172 Electromagnetic contactor and a method of controlling the same |
| 04/02/1998 | WO1998013847A1 Circuit arrangement to provide an electromagnetically operated mechanism of a switchgear with an electricity supply |
| 04/01/1998 | EP0832496A1 Switching equipment |
| 03/31/1998 | US5734543 Method and apparatus to improve the performance of AC solenoid devices during lapses in power quality |
| 03/31/1998 | US5734278 Low-power, high-reliability switching rotary phase shifter device |
| 03/25/1998 | EP0830699A1 Control method and device for a switchgear actuator |
| 03/19/1998 | WO1998011584A1 Current limiting circuit |
| 03/17/1998 | US5729119 Dual mode power supply and under voltage trip device |
| 03/12/1998 | WO1998010452A1 Load driving circuit |
| 03/12/1998 | WO1998009802A1 Apparatus for automatically controlling operation of slide of fail-safe press |
| 03/12/1998 | DE19637675A1 Electromagnetic relay circuit arrangement |
| 03/11/1998 | CN1037726C Hybrid switch |
| 03/10/1998 | US5726900 Ground detection circuit for a three wire power supply |
| 03/05/1998 | DE19738148A1 Pulsbreitenmodulationstreiber mit Spitzenstromsteuerung Pulse width modulation driver with peak current control |
| 03/04/1998 | EP0827170A2 Electromagnetic drive apparatus |
| 03/03/1998 | US5724223 Control of a proportional valve using mains voltage |
| 02/26/1998 | DE19635358A1 Electromagnetic relay circuit |
| 02/26/1998 | DE19634342A1 Control apparatus for electromagnetic fuel injection valves |
| 02/25/1998 | EP0825630A2 Switch, particularly relay |
| 02/18/1998 | CN1173722A Electromagnetic drive apparatus |
| 02/11/1998 | CN2274390Y Electricity-saved cooling device |
| 02/11/1998 | CN2274389Y 连续式瞬间启动装置 Continuous instant start system |
| 02/10/1998 | US5717562 Solenoid injector driver circuit |
| 02/04/1998 | CN1172549A Circuitry for an engagement relay |
| 01/29/1998 | WO1998003901A1 Current control apparatus |
| 01/29/1998 | DE19728221A1 High speed operation method of electromagnetic load |
| 01/28/1998 | CN1171612A Trouble protecting method for circuit breaker |
| 01/27/1998 | US5711280 Method and apparatus for triggering an electromagnetic consumer |
| 01/21/1998 | EP0820081A1 Process for protecting against the failure of a circuit breaker |
| 01/21/1998 | EP0819881A2 Area light switch |
| 01/15/1998 | WO1998001928A1 Electromechanical switching device |
| 01/14/1998 | EP0818645A1 Position sensor for transmission gear selector |
| 01/14/1998 | CN2272610Y 多控开关 Multi-control switch |
| 01/08/1998 | DE19641188C1 Magnet drive power supply circuit e.g. for switchgear |
| 01/08/1998 | CA2209849A1 Position sensor for transmission gear selector |
| 01/07/1998 | EP0817229A2 Method of monitoring a contactor |
| 12/31/1997 | WO1997050163A1 Surge-resistant relay switching circuit |
| 12/31/1997 | CN1169206A Circuit for driving contactor |
| 12/30/1997 | US5703748 Solenoid driver circuit and method |
| 12/17/1997 | EP0813216A2 Method of monitoring contactor operation |