| 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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| 12/10/1997 | EP0811233A1 Circuit for driving a contactor |
| 12/09/1997 | US5696661 Remanence switching device |
| 12/03/1997 | EP0810616A1 Load driving circuit |
| 12/03/1997 | CN2269636Y Noiseless arc suppressing energy saving ac contactor |
| 11/27/1997 | DE19641516C1 Circuit with safety function e.g. for machinery and equipment |
| 11/19/1997 | EP0807948A2 Circuit for responding to a trailing edge |
| 11/19/1997 | EP0807312A1 Circuitry for an engagement relay |
| 11/19/1997 | CN1165264A Circuit reset lockout |
| 11/18/1997 | US5689399 Versatile switching module |
| 11/18/1997 | US5689398 For connecting a power source to a load |
| 11/13/1997 | WO1997042641A1 Dc actuator control circuit with voltage compensation, current control and fast dropout period |
| 11/11/1997 | US5687052 Flexible variable pole-count relay output circuit for controlling multiple relays |
| 11/05/1997 | CN2266795Y Universal contact silent operation leakage protector |
| 11/05/1997 | CN2266793Y Energy-saving device for AC contactor |
| 11/04/1997 | US5684668 Magnetic contactor having phase angle adjuster |
| 11/04/1997 | US5684372 Garage door operator safety apparatus |
| 10/30/1997 | WO1997040509A1 Inductive charge control device |
| 10/30/1997 | WO1997040508A1 Circuit arrangement for operating an electromagnet |
| 10/30/1997 | CA2252622A1 Inductive charge control device |
| 10/29/1997 | CN1163211A Device for safety controlling and monitoring railway electric equipment for signal technology |
| 10/23/1997 | DE19617110A1 Schaltungsanordnung zum Betrieb eines Elektromagneten Circuit arrangement for operating an electromagnet |
| 10/22/1997 | CN2265591Y Energy-saving relay |
| 10/22/1997 | CN2265587Y Protective type vacuum contactor |
| 10/15/1997 | CN2264968Y Power on-off switch of contactor |
| 10/14/1997 | US5677656 Of internal combustion engines |
| 10/09/1997 | WO1997037168A1 Protective circuit |
| 10/09/1997 | DE19615588A1 Sicherheitsschaltung Safety circuit |
| 10/08/1997 | EP0800184A2 Load driving circuit |
| 10/08/1997 | CN2264443Y Cut-off delay type time relay with snap action contact |
| 10/08/1997 | CN2264411Y Energy saving silencing device of a.c contactor |
| 10/02/1997 | WO1997036308A1 Improved performance of ac solenoid devices |
| 10/01/1997 | CN1161101A Pulse width modulated solenoid driver controller |
| 09/30/1997 | US5673166 Dither magnitude control |
| 09/30/1997 | US5673165 Circuit arrangement for controlling the electromagnetic drive of a switching device |
| 09/24/1997 | EP0704096B1 A system and method for operating high speed solenoid actuated devices |
| 09/24/1997 | CN2263396Y Rare-earth iron-core AC contactor and special-purpose electricity-saving controller |
| 09/24/1997 | CN1160280A Self-adaptive DC current signal relay |
| 09/23/1997 | US5671115 Circuit arrangement for driving a contactor |
| 09/18/1997 | DE19609608A1 Determining Hall voltage produced in Hall sensor element by magnetic flux in relay |
| 09/17/1997 | EP0658275B1 Improvements in and relating to electromechanical relays |
| 09/16/1997 | US5668706 Load driving circuit |
| 09/16/1997 | US5668693 Method of monitoring a contactor |
| 09/03/1997 | EP0792512A1 Protective safety combination |
| 09/03/1997 | CN2261671Y Arcless current converting, silencing and energy saving A.C. contactor |
| 08/27/1997 | EP0791943A1 Method and device for controlling the switching of the final stage of a driver of an electromagnetic load, particularly for warm water control units in motor vehicles |
| 08/27/1997 | EP0791869A1 A circuit reset lockout |
| 08/27/1997 | EP0579727B1 Garage door operator safety apparatus |
| 08/24/1997 | CA2193929A1 Circuit reset lockout |
| 08/21/1997 | WO1997030462A1 Control device for an internal combustion engine |
| 08/21/1997 | WO1997021237A3 Switchgear control apparatus |
| 08/21/1997 | DE19616905C1 Dual-channel machinery operatives protection safety circuit for emergency cut=out function |
| 08/14/1997 | WO1997029502A1 Electronic switch magnet control system for holding a contactor |
| 08/14/1997 | WO1997029501A1 Electronic switch magnet control system for switching on and holding a contactor |
| 08/14/1997 | WO1997021238A3 Contactor safety combination |
| 08/14/1997 | DE19606894A1 Electronic circuit stage for safe control and monitoring of electrical loads in railway applications |
| 08/13/1997 | EP0789378A1 Contactor equipment |
| 08/13/1997 | CN1156894A Monostable pulse electromagnetic valve and electromagnetic relay drive circuit for AC |
| 08/13/1997 | CN1156893A Monostable pulse electromagnetic valve and electromagnetic relay drive circuit for DC |
| 08/07/1997 | WO1997028549A1 Method of establishing the residual useful life of contacts in switchgear and associated arrangement |
| 08/07/1997 | DE19605974A1 Elektronische Schaltmagnetansteuerung zum Einschalten und Halten eines Schützes Electronic switching magnet drive to power on and holding a contactor |
| 08/07/1997 | DE19605759A1 Elektronische Schaltmagnetansteuerung zum Halten eines Schützes Electronic switching magnet drive for holding a contactor |
| 08/07/1997 | DE19603319A1 Verfahren zur Bestimmung der Restlebensdauer von Kontakten in Schaltgeräten und zugehörige Anordnung Method for determining the residual life of contacts in switching devices and associated arrangement |
| 08/06/1997 | CN2259021Y 时间继电器 Time Relay |
| 08/05/1997 | US5654644 Circuitry to monitor an inductive circuit |
| 07/29/1997 | US5652691 Electrically operated control device and system for an appliance and method of operating the same |
| 07/24/1997 | WO1997020224A3 Process and device for testing electric drives |
| 07/24/1997 | DE19647215A1 Control circuit for solenoid valve actuators |
| 07/16/1997 | EP0783760A1 Pulse width modulated solenoid driver controller |
| 07/15/1997 | US5647387 Apparatus and method for controlling duty solenoid valves |
| 07/10/1997 | WO1997024790A1 Ground fault circuit interrupter |
| 07/10/1997 | DE19604208C1 Low-loss DC voltage supply circuit e.g. for small domestic appliance relay circuit |
| 06/18/1997 | EP0779640A2 Amplifier module with bus interface, for control arrangement of switching devices |
| 06/18/1997 | EP0779631A2 Current control apparatus of pulse-width modulation and its method of controlling current |
| 06/12/1997 | WO1997021238A2 Contactor safety combination |
| 06/12/1997 | WO1997021237A2 Switchgear control apparatus |
| 06/12/1997 | DE19545540A1 Schützsicherheitskombination Contactor combination |
| 06/11/1997 | CN1151597A Power supply circuit of excitation coil of electromagnet |
| 06/05/1997 | WO1997020224A2 Process and device for testing electric drives |
| 06/05/1997 | DE19544207A1 Model-based measurement and control of electromagnetic actuator movements |
| 06/05/1997 | CA2238946A1 Process and device for testing electric drives |
| 06/04/1997 | CN2255661Y Pulse type passive running contactor |
| 05/27/1997 | US5633779 Relay control circuit and method for controlling a relay |
| 05/27/1997 | US5633776 Circuit breaker |
| 05/27/1997 | US5633540 Surge-resistant relay switching circuit |
| 05/20/1997 | US5631801 Fast relay control circuit with reduced bounce and low power consumption |
| 05/14/1997 | EP0773569A1 Driver circuit for an injector |
| 05/14/1997 | CN2254234Y Soundless running power economizer |
| 05/07/1997 | EP0772216A1 Detection of contact position from coil current in electromagnetic switches having AC or DC operated coils |
| 04/23/1997 | CN2253093Y Multifunctional single-phase loading colinear diversion controller |
| 04/23/1997 | CN2253063Y Socket |
| 04/16/1997 | EP0768683A1 Supply circuit for an excitation coil of an electromagnet |
| 04/16/1997 | CN2252419Y AC Power supply socket with time adjustable and circulating start and outage |
| 04/16/1997 | CN2252401Y No-arc A.C. contactor |
| 04/15/1997 | US5621603 Pulse width modulated solenoid driver controller |
| 04/15/1997 | US5621256 Hysteresis in a circuit for sensing presence of a plug |
| 04/09/1997 | EP0767478A1 Safety circuit |
| 04/09/1997 | EP0766868A1 Solenoid operated remote resetting device with a protective activation circuit |
| 04/09/1997 | CN2251793Y Energy-saving double winding ac contactor |
| 03/27/1997 | DE19535211A1 Regulation circuit for electromagnetic switchgear drive |
| 03/26/1997 | EP0764961A1 Remote control residential circuit breaker |