Patents
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)
07/2008
07/29/2008US7405918 Inductive load control
07/29/2008US7405917 Method and apparatus for monitoring and determining the functional status of an electromagnetic valve
07/29/2008US7405648 Remote control wiring mechanism
07/24/2008DE102007002060A1 Vorrichtung zum Schalten eines Kochfeldes und Verfahren zum Beurteilen eines fehlerhaften Betriebs eines Kochfeldes An apparatus for switching a hob and method for judging an erroneous operation of a cooking hob
07/24/2008DE102004020995B4 Meldegerät für eine Sicherheitsschaltung Signaling device for a safety circuit
07/23/2008EP1946349A1 Safety switching apparatus for the failsafe disconnection of an electrical load
07/23/2008CN101226855A Anti-dazzling-electric exterior adjustable delay time type permanent magnetism type ac contactor
07/23/2008CN101226854A Electric control circuit apparatus for relay
07/23/2008CN100405515C Five-end two-wire system positive, negative and stop tri-state multipath control switch
07/22/2008US7403368 Devices and methods for detecting operational failures of relays
07/22/2008US7403367 Active vibration insulator
07/22/2008US7403366 Control circuit for an electromagnetic drive
07/17/2008WO2008033839A3 Thermally gradient target
07/17/2008US20080170348 Constant current relay driver with controlled sense resistor
07/17/2008US20080170347 Apparatus for Switching a Cook Top and Method for Assessing Faulty Operation of a Cook Top
07/16/2008EP1943141A1 Steering device for boats
07/16/2008CN201087896Y Contactor
07/16/2008CN101222193A Positive and reverse rotation control circuit of electric motor
07/10/2008WO2008057450A3 Magnetic component connector, circuit boards for use therewith, and kits for building and designing circuits
07/10/2008US20080165467 Drive circuit for an actuator and method for driving an actuator
07/10/2008US20080164770 Wireless headset having adaptive powering
07/10/2008DE10022722C5 Sicherheitsschaltgerät zum sicheren Ein- und Ausschalten eines elektrischen Verbrauchers Safety relay for secure switching on and off of an electrical load
07/09/2008CN201084651Y A small-size high-voltage electronic relay
07/09/2008CN101217231A A control and protective circuit on control and protective switch electric apparatus
07/08/2008US7397148 Vehicular anomaly diagnosis system
07/08/2008US7395888 Vehicle drive device
07/03/2008WO2008080065A1 Apparatus and method for controlling a circuit breaker trip device
07/03/2008DE102006060059A1 Circuit arrangement for controlling electromagnetic arrangement, has diode connecting contacts of respective coil such that conductive connection is formed over diode when preset charging voltage is reached at charging capacitors
07/02/2008CN201081811Y Power-saving and lift protection device for ac contactor
07/02/2008CN101213629A Switching power supply control with phase shift
07/02/2008CN101211710A Electromagnetic induction switch
06/2008
06/29/2008CA2615622A1 Current sensing apparatus
06/28/2008CA2614400A1 Relay device and corresponding method
06/26/2008US20080151464 Method and Apparatus for Driving a Switch
06/26/2008US20080151462 Apparatus and method for controlling a solenoid
06/25/2008EP1936650A1 Apparatus and method for controlling a solenoid
06/25/2008EP1936457A1 Modular safety switching device and safety switching device method
06/25/2008CN201078357Y Heating ventilation fan
06/25/2008CN100397537C Three-end two-wire system multipath control switch
06/19/2008WO2008071713A1 Circuit arrangement for the common pulse width modulation of valves with quenching
06/19/2008WO2008071623A1 Parking brake system with electric control
06/19/2008US20080144250 Device for generating a motive force
06/19/2008US20080143190 Power supply apparatus for field devices
06/18/2008CN201075837Y Radio frequency remote control receiving switch with magnetic retaining relay
06/18/2008CN201075720Y Control circuit of controller for electric vehicle
06/18/2008CN201075359Y Ac contactor power saving silent running apparatus
06/18/2008CN101203931A Electromagnetic switching device and operating method
06/18/2008CN101203930A Safety switch for the safe disconnection of an electric consumer
06/17/2008US7388735 Current inductive timer socket
06/17/2008US7388466 Integrated passive entry and remote keyless entry system
06/17/2008US7388305 AC/DC converter having single detectable input
06/17/2008US7388186 Optically controlled MEMS devices
06/12/2008WO2008067782A1 Method for actuating at least two electromagnetic relays and control device for executing the method
06/11/2008CN100394527C No-contact relay- magnetic relay switch driving circuit
06/05/2008WO2008064694A1 Method for detecting the operability of an electric relay and device for performing said method
06/05/2008US20080130186 Pwm drive apparatus and method for correcting output offset thereof
06/05/2008US20080129124 Hybrid electrical switching device
06/04/2008CN201069740Y Wireless remote control power switch and control device for dive pump
06/04/2008CN201069576Y Magnetic bar reader
06/04/2008CN100392786C Control device of permanent magnetic contactor
06/04/2008CN100392785C Electricity-saving control module
06/03/2008US7382598 Means for controlling a coil arrangement with electrically variable inductance
06/03/2008CA2364846C Electrical energy distribution system and contactor for such a system
05/2008
05/29/2008WO2008062856A1 Controller for power supply circuit
05/29/2008WO2008061933A1 Method and device for monitoring a switch unit
05/29/2008DE19641390B4 Anpaßschaltung für einen Bahn-Sensor Matching circuit for a web-sensor
05/29/2008DE102006053797A1 Wechselstromsteller für elektromagnetische Schaltgeräte AC power controller for electromagnetic relays
05/28/2008EP1925010A1 Control circuit for a relay
05/28/2008EP1925009A2 Handheld communication tester and method for testing direct serial communication capability of an intelligent electronic device in a power system
05/28/2008EP1738382B1 Safety switch for a fail-safe circuit
05/28/2008CN201066836Y Handle and gas brake inductance switch for medical table
05/28/2008CN201066660Y A permanent AC contactor control module for preventing from instantaneous voltage interruption
05/28/2008CN101188174A Electrical appliance power switch system
05/28/2008CN101188173A Secure universal contactor
05/27/2008US7379287 Shielding method and shielding apparatus
05/27/2008US7378762 Electrical circuit for limiting switching-on current
05/27/2008US7378761 Control circuit and a method for electrically connecting a load to a power source
05/22/2008US20080117559 Automatic output mode select for an actuator controller
05/21/2008DE102006054877A1 Verfahren und Vorrichtung zur Überwachung einer Schaltereinheit A method and apparatus for monitoring a switch unit
05/21/2008CN201063598Y Probe type electronic limit switch
05/21/2008CN201063570Y Safety starting circuit of electric machine
05/21/2008CN201063317Y Instable equilibrium type high-efficiency contactor
05/21/2008CN201063103Y Electric intelligent switch device
05/21/2008CN101183616A AC controller for electromagnetic switches
05/15/2008WO2008055828A1 Method and circuit arrangement for secure control of actuators, sensors and/or users in an electrical device comprising the same in particular in an electrical domestic appliance
05/15/2008WO2008055701A1 Safety switch device
05/15/2008US20080112105 Static electricity dissipation device for vehicles
05/15/2008DE102006053397A1 Sicherheitsschaltereinrichtung Safety switch device
05/14/2008CN201060804Y Interrupted device of power supply apparatus
05/14/2008CN201060390Y Switch controller
05/14/2008CN101180698A Safety switch device for cutting off safely electrical load
05/14/2008CN101178985A Automatic change-over and control method with self-diagnosis output function
05/14/2008CN101178583A Standby free programmable power supply on-off circuit with single push button
05/10/2008CA2607534A1 Arc suppression circuit using a semi-conductor switch
05/06/2008US7369392 Circuit for preventing simultaneous on operations
05/06/2008US7369391 Drive circuit of direct-current voltage-driven magnetic contactor and power converter
05/06/2008US7368829 Method and apparatus for detecting welding of a relay contact
05/01/2008US20080100982 System and method for dissipating static electricity in an electronic sheet material dispenser
05/01/2008US20080100146 Contact verification method for a transfer switch mechanism
04/2008
04/30/2008CN101171656A 电源控制装置 Power supply control means
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