| 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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| 03/31/1999 | CN1042771C Circuit device for controlling contactor |
| 03/25/1999 | DE19742038A1 Solenoid valve state detection method |
| 03/25/1999 | DE19742037A1 Armature release detection method in solenoid valve |
| 03/24/1999 | CN2311851Y Energy-saving connector |
| 03/24/1999 | CN1211807A Micro-power loss noise-free contactor |
| 03/23/1999 | US5886428 Switch, especially relay |
| 03/18/1999 | WO1999013483A1 Electronic switch for quick, automatic response to current overloads |
| 03/18/1999 | WO1999013482A1 Controller for relay |
| 03/18/1999 | DE19738989A1 Smart-power-switch type electronic relay with short-circuit and overload protection |
| 03/11/1999 | WO1998055748A3 Device for controlling an electromechanical setting device |
| 03/11/1999 | DE19805658A1 Verfahren zur Erkennung von Fehlschaltungen eines ersten Relais Method for detecting faulty operation of a first relay |
| 03/10/1999 | CN2310385Y Electricity-saving type ac contactor |
| 03/04/1999 | WO1999010780A1 Method for detecting malfunctions of a first relay |
| 02/17/1999 | CN2308196Y Short-circuit protection device without dangerous spark miner's lamp |
| 02/17/1999 | CN2308161Y Electric-saving contactor |
| 02/16/1999 | CA2133601C Industrial equipment operating status scanner |
| 02/10/1999 | CN2307360Y Silent power-saving control push-button |
| 02/10/1999 | CN2307359Y Static impact relay |
| 02/09/1999 | US5870270 Non-burnout controller for a switching coil |
| 02/04/1999 | DE19736183C1 Safety switch arrangement for safety circuit with at least one channel |
| 02/03/1999 | EP0895264A1 Current control for an inductive load |
| 02/03/1999 | CN2306565Y 电磁开关 Solenoid switch |
| 02/03/1999 | CN1207200A Method of establishing the residual useful life of contacts in switchgear and associated arrangement |
| 02/03/1999 | CN1206927A High-effciency energy-saving multi-function ac contactor |
| 01/28/1999 | DE19731269A1 Electromechanical switching device for electrical contacts |
| 01/27/1999 | CN2305808Y Electronic time-delay switch |
| 01/27/1999 | CN2305749Y AC contactor controller |
| 01/20/1999 | CN2304995Y High performance energy saving A. C. contactor |
| 01/19/1999 | US5861746 Method for detecting closure of a solenoid coil from the rise time of each of the current peaks of the solenoid coil |
| 01/13/1999 | EP0890058A1 Protective circuit |
| 01/13/1999 | CN2304182Y Zero-power-consumption ac.-dc. dual-purpose electronic contactor |
| 01/13/1999 | CN2304181Y Energy-saved silencing ac.contactor |
| 01/07/1999 | WO1999000811A1 A method of connecting and disconnecting an ac voltage to/from a load, as well as a switch comprising a relay |
| 01/05/1999 | US5856905 Two wire air gap off power supply |
| 12/30/1998 | EP0887814A2 Circuit for controlling a bistable magnetic actuator |
| 12/24/1998 | DE19722927C1 Switching device with in-built safety function for protecting personnel from injury due to moving machinery or plant |
| 12/23/1998 | CN2301789Y Noiseless contactor |
| 12/23/1998 | CN2301788Y Electronic controlled AC contactor |
| 12/23/1998 | CN1202967A Process and device for testing electric devices |
| 12/16/1998 | CN2300983Y Ac/dc contact with time controller |
| 12/16/1998 | CN1202269A Switchgear control apparatus |
| 12/16/1998 | CN1202267A Contactor safety combination |
| 12/10/1998 | WO1998055748A2 Device for controlling an electromechanical setting device |
| 12/10/1998 | DE19723931A1 Einrichtung zum Steuern eines elektromechanischen Stellgeräts Means for controlling an electromechanical actuating device |
| 12/09/1998 | EP0882303A1 Solenoid driver and method for determining solenoid operational status |
| 12/09/1998 | CN1201148A Monitoring device with monitoring switch |
| 12/08/1998 | US5847344 Position sensor for transmission gear selector switch |
| 12/03/1998 | WO1998040898A3 Two pole contactor |
| 12/02/1998 | EP0880787A1 Control device for an internal combustion engine |
| 12/02/1998 | EP0575626B1 Circuit for driving load |
| 11/25/1998 | EP0879475A1 Electronic switch magnet control system for holding a contactor |
| 11/25/1998 | EP0879474A1 Electronic switch magnet control system for switching on and holding a contactor |
| 11/24/1998 | US5841253 Garage door operator with motor control circuit fault detection |
| 11/19/1998 | DE19750958A1 Manual and/or automatic control circuit for release path |
| 11/18/1998 | EP0878015A1 Method of establishing the residual useful life of contacts in switchgear and associated arrangement |
| 11/18/1998 | CN1040812C Non-oxidation explosion-proof current breaker |
| 11/11/1998 | EP0877406A2 Electric commutation device, in particular a contactor |
| 11/10/1998 | US5835330 Method and device for driving an electromagnetic consumer |
| 11/04/1998 | CN2296571Y Eliminating electric spark device for relay contactor |
| 10/28/1998 | EP0874437A2 Circuit for starting a machine or the like and method for controlling start-up of a machine |
| 10/28/1998 | EP0874383A2 Monitoring circuit |
| 10/27/1998 | US5828540 Method of protecting against failure of a circuit breaker |
| 10/20/1998 | US5825102 Fail-safe circuit |
| 10/15/1998 | DE19816079A1 Relay control circuit with output terminal |
| 10/07/1998 | CN2293895Y Automatic switch for electric device |
| 10/06/1998 | US5818681 Electromagnetic relay drive circuit |
| 10/06/1998 | US5818679 Switching device for solenoid switch |
| 10/06/1998 | US5818678 Tri-state control apparatus for a solenoid having on off and PWM control modes |
| 10/01/1998 | WO1998043266A1 Electromagnetic control device |
| 09/30/1998 | EP0867905A2 Method of operating a relay assembly |
| 09/30/1998 | EP0867274A1 Apparatus for automatically controlling operation of slide of fail-safe press |
| 09/30/1998 | EP0755565B1 Remote control device especially for conveying, spraying and distributing machines for concrete and mortar |
| 09/29/1998 | US5815364 For connecting a source of electrical power to an electrical load |
| 09/29/1998 | US5815362 Pulse width modulated drive for an infinitely variable solenoid operated brake cylinder pressure control valve |
| 09/24/1998 | DE19711768A1 Elektromagnetischer Stellantrieb Electromagnetic actuator |
| 09/23/1998 | EP0865661A2 Contactor safety combination |
| 09/23/1998 | EP0865660A2 Switchgear control apparatus |
| 09/23/1998 | CN2292310Y Self-adaptive ac current type signal relay |
| 09/22/1998 | US5812424 Relay control circuit |
| 09/22/1998 | US5812355 Electric gun driver |
| 09/22/1998 | US5811963 Line powered DC power supply |
| 09/17/1998 | WO1998040898A2 Two pole contactor |
| 09/17/1998 | CA2283377A1 Two pole contactor |
| 09/16/1998 | EP0865059A1 Circuit arrangement for energy saving operation of a relay |
| 09/16/1998 | EP0865055A1 Load driving circuit |
| 09/16/1998 | EP0864099A2 Process and device for testing electric drives |
| 09/16/1998 | EP0807312B1 Circuitry for an engagement relay |
| 09/11/1998 | WO1998039787A1 Current-controlled output stage for electromagnetic actuators |
| 09/09/1998 | EP0863360A2 Fail-safe control device for electromechanical linear movement unit. |
| 09/09/1998 | EP0685030B1 Internal combustion engine fuel injector control system |
| 09/08/1998 | US5805405 Power supply circuit of an excitation coil of an electromagnet |
| 09/03/1998 | WO1998038728A1 Motor reversing circuit |
| 09/03/1998 | WO1998038666A1 Electro-mechanical switching device |
| 09/03/1998 | WO1998038664A1 Modular safety switch |
| 09/03/1998 | WO1998038661A1 Motor drive |
| 09/03/1998 | DE19707241A1 Modulares Sicherheitsschaltgerät Modular safety relay |
| 09/01/1998 | CA2078473C Remote control residential circuit breaker |
| 08/26/1998 | EP0745263B1 Solenoid current driver circuit |
| 08/26/1998 | CN2289297Y Relay |
| 08/26/1998 | CN2289296Y Contactless electricity-saving device for ac contactor |