| 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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| 04/07/2009 | US7514821 Power supply switching controller and method |
| 04/03/2009 | CA2639584A1 System with circuitry for suppressing arc formation in micro-electromechanical system based switch |
| 04/02/2009 | WO2008150256A8 Gen-set control system having proactive load relief |
| 04/02/2009 | US20090086513 Control method and device for switching power supplies |
| 04/02/2009 | US20090085409 Energy harvesting system and method using multiple energy sources |
| 04/02/2009 | DE102007045989A1 Safety switching device, has control unit designed to activate outputs during request of corresponding signals, where signals are combined and separated in line and evaluated from each other at device |
| 04/02/2009 | DE102006054294B4 System und Verfahren zum Überwachen eines elektrischen Leistungsrelais in einem Hybridelektrofahrzeug System and method for monitoring an electrical power relay in a hybrid electric vehicle |
| 04/01/2009 | CN201215788Y Driving circuit for electric relay |
| 04/01/2009 | CN201215787Y Self-lock protection circuit for household electric appliance controller |
| 04/01/2009 | CN201215620Y Electric power control circuit for washing machine or clothes dryer |
| 04/01/2009 | CN201215617Y Standby system for electrical appliance |
| 04/01/2009 | CN101399134A Relay status detection method |
| 04/01/2009 | CN100474478C Drive circuit of DC voltage driven magnet contactor and power converter |
| 03/31/2009 | US7509931 Power electronics circuit for electromechanical valve actuator of an internal combustion engine |
| 03/26/2009 | US20090080135 Apparatus and Method for ESD Protection of an Integrated Circuit |
| 03/26/2009 | US20090079273 Switching circuit apparatus having a series conduction path for servicing a load and switching method |
| 03/25/2009 | EP2040279A1 Electronic module for AC/DC coil within an electromagnetic contactor |
| 03/25/2009 | EP2038906A2 Compact non-contact multi-function electrical switch |
| 03/25/2009 | CN201211890Y Fault leading safety intelligent control plate |
| 03/25/2009 | CN101395687A Safety switching apparatus for the failsafe disconnection of an electrical load |
| 03/25/2009 | CN101393821A Energy accumulation type DC suction and DC keeping circuit for AC contactor |
| 03/25/2009 | CN101393820A Electronic module for ac/dc coil within an electromagnetic contractor |
| 03/25/2009 | CN101393819A Anti-flashover intelligent AC contactor |
| 03/24/2009 | US7508894 Apparatus of adjusting wobble clock |
| 03/24/2009 | US7508645 Method and apparatus for operating a magnetic actuator in a power switching device |
| 03/24/2009 | US7508095 Apparatus to generate high voltage by digital control and method thereof |
| 03/21/2009 | CA2639283A1 Electronic module for ac/dc coil within an electromagnetic contactor |
| 03/19/2009 | WO2009034083A1 Magnetic drive system for a switching device and method for producing said magnetic drive system |
| 03/19/2009 | US20090073628 Safety switching apparatus |
| 03/19/2009 | US20090073627 Method and Apparatus for Optimizing Synchronous Switching Operations in Power Systems |
| 03/18/2009 | EP2037581A1 Integrated electrical-installation management system |
| 03/18/2009 | EP1704575A4 Method of and apparatus for electrostatic fluid acceleration control of a fluid flow |
| 03/18/2009 | CN201210465Y Electricity consumption controller |
| 03/18/2009 | CN101388503A Intelligent socket |
| 03/18/2009 | CN101388302A Circuit system with supply voltage for driving an electromechanical switch |
| 03/18/2009 | CN100470982C Device for preventing unwanted operation of relay based on pulse transfer |
| 03/17/2009 | US7505243 Magnetic levitation apparatus |
| 03/17/2009 | US7504746 Differential load driver circuits |
| 03/12/2009 | WO2009031170A1 Control device for a safety element of a domestic electrical appliance or of a gas appliance |
| 03/12/2009 | WO2009006952A3 Control apparatus for a switching device with a pull-in coil and/or a holding coil and method for controlling the current flowing through the coil |
| 03/12/2009 | US20090067112 Electro-optical device and electronic apparatus |
| 03/12/2009 | US20090067110 Switching Device and a System Comprising the Same |
| 03/11/2009 | EP2034498A1 Electromagnetic switching device |
| 03/11/2009 | CN201207356Y 电压阶跃轨道继电器 Voltage step track relay |
| 03/11/2009 | CN201207355Y Interval relay and windshield wiper motor |
| 03/11/2009 | CN101382778A Resolving scheme for supporting zero power consumption standby after powering off by manual, remote control or network operation |
| 03/11/2009 | CN101380897A Misoperation starting guard equipment in motor vehicle driving and method thereof |
| 03/10/2009 | US7502214 Flexible hook switch driver circuit |
| 03/05/2009 | WO2009026880A2 Method for detecting of a switch state |
| 03/05/2009 | WO2008146135A4 Residual current circuit breaker controlling and auxiliary apparatus, and residual current circuit breaker equipped thereby |
| 03/05/2009 | US20090062976 Duel control solenoid circuit |
| 03/04/2009 | CN101377987A Method for enhancing working current self-adapting capability of double-coiled relay current coil |
| 03/04/2009 | CN100466134C Electromagnetic contactor |
| 03/03/2009 | US7499255 Vacuum-type electrical switching apparatus |
| 03/03/2009 | US7499254 Low power solenoid driver circuit |
| 02/26/2009 | US20090052107 Automatically configuring vacuum contactor |
| 02/26/2009 | US20090051225 Gate driving scheme for depletion mode devices in buck converters |
| 02/26/2009 | DE112006000049T5 Überlastrelais und Betriebsverfahren davon Overload relay and operating method thereof |
| 02/25/2009 | EP2028676A2 Automatically configuring vacuum contactor |
| 02/25/2009 | CN201199682Y Safety voltage control circuit for sticking mixing embroidery machine jerk switch |
| 02/24/2009 | US7495880 Circuit board and electric device having circuit board |
| 02/24/2009 | US7495879 Solid-state magnet control |
| 02/19/2009 | US20090046407 Cascade electromagnetic pulse protection circuit |
| 02/19/2009 | US20090045679 Integrated Circuit and Method of Operating the Same |
| 02/18/2009 | CN201196934Y Relay of automatic time-control vehicle starting engine |
| 02/18/2009 | CN201196733Y Standby control device |
| 02/18/2009 | CN101369810A Door handle control lamp switch |
| 02/18/2009 | CN100462728C Circuit device and method for testing relay switching contacts of a digital output circuit |
| 02/17/2009 | US7492568 Maintenance-free static eliminator |
| 02/17/2009 | US7492567 Electromagnetic induction switch circuit |
| 02/17/2009 | US7492557 Switching device and electric apparatus |
| 02/17/2009 | US7492056 Electrical locking system |
| 02/12/2009 | US20090040679 Method and device for recognizing a load which is connected to a relay |
| 02/11/2009 | EP2023441A1 Bistable device forming an electric switch of a battery terminal |
| 02/11/2009 | CN201194205Y Magnetic circuit construction for AC relay |
| 02/11/2009 | CN201194196Y Electric power control circuit |
| 02/11/2009 | CN101364500A Power-on automatic breaking large interval intelligent permanent magnet relay |
| 02/11/2009 | CN100461323C Device and method for controlling electric switching devices |
| 02/11/2009 | CN100461322C Voltage self-adaptive DC low-voltage tripping controller and control method |
| 02/04/2009 | CN201191587Y Anti-flashover delayed releasing contactor |
| 02/04/2009 | CN201191586Y Delayed releasing permanent magnet type contactor without self-locking contact |
| 02/04/2009 | CN201191583Y Pulse driving circuit for electric relay |
| 02/04/2009 | CN201191573Y Single phase intelligent composite switch |
| 02/04/2009 | CN201191572Y Three-phase intelligent composite switch |
| 02/04/2009 | CN201191364Y Electric appliance control system having power supply controller |
| 02/03/2009 | US7486496 Method and circuit arrangement for operating a solenoid actuator |
| 02/03/2009 | US7486163 Low-voltage micro-switch actuation technique |
| 01/29/2009 | US20090027824 Current Zero Cross Switching Relay Module Using A Voltage Monitor |
| 01/29/2009 | US20090027823 Electromagnetic actuator with at least two windings |
| 01/29/2009 | US20090026397 System, apparatus and method for controlling valves |
| 01/28/2009 | CN101354982A Anti-interference minitype magnetism holding type contactor circuit |
| 01/28/2009 | CN101354944A Electromagnetic actuator with at least two coils |
| 01/27/2009 | US7483256 Electrostatic chuck |
| 01/27/2009 | US7483254 Control circuit of a bistable permanent magnet operating mechanism |
| 01/27/2009 | US7483253 Systems and methods for detecting solenoid armature movement |
| 01/22/2009 | US20090021882 Solenoid Controls, Systems, and Methods of Use for Obtaining Optimum Battery Life |
| 01/21/2009 | EP2017869A2 Safety device using multiple channels to control a safety device |
| 01/21/2009 | EP2017868A1 Three-phase power output stage |
| 01/21/2009 | EP2017867A2 Measuring device for measuring a periodic analogue signal |
| 01/21/2009 | CN100454466C Method and apparatus for detecting welding of a relay contact |