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Browse by Category: Main > Electrical & Energy
Class Information
Number: 307/131
Name: Electrical transmission or interconnection systems > Switching systems > Condition responsive > Electrical > Current
Description: Subject matter in which the electrical condition to which the system is automatically responsive is current.


Patents under this class:
1 2 3 4

Patent Number Title Of Patent Date Issued
7626286 Method for mains-synchronous switching of circuit breakers, and an apparatus for carrying out this method Dec. 1, 2009
7622828 Loaded triac output system Nov. 24, 2009
7622886 Method for determination of the risk to disturbance-free operation of a frequency converter Nov. 24, 2009
7612471 Hybrid electrical switching device Nov. 3, 2009
7598625 Network-based aircraft secondary electric power distribution system Oct. 6, 2009
7586727 Inrush current limiting switching circuit for power supply Sep. 8, 2009
7504749 Switch and system for controlling electric loads Mar. 17, 2009
7462957 Multi-conductor plug and socket apparatus Dec. 9, 2008
7417339 Fast transition power supply Aug. 26, 2008
7411317 Electrical load status detection and control device Aug. 12, 2008
7408274 Control and operating condition monitoring of dual series switch contactors for electric motor or other electrical load Aug. 5, 2008
7391133 Hybrid switch Jun. 24, 2008
7362010 Currents-sensing switching circuit Apr. 22, 2008
7345378 Power supply circuit containing multiple DC--DC converters having programmable output current capabilities Mar. 18, 2008
7332834 Power outlet device for charger and method of transmitting power thereof Feb. 19, 2008
7315097 Power saving control method and device in electronic device, and power saving electronic device Jan. 1, 2008
7291986 Step sinusoidal voltage controlling method for hid, flourescent and incandescent light dimming applications Nov. 6, 2007
7231283 Method for regulating the power supply of a number of multiple field devices Jun. 12, 2007
7197650 Charging and monitoring apparatus and method of charging a battery and monitoring the power level through power supply line Mar. 27, 2007
7196433 Multi-output device with preset power supply priority Mar. 27, 2007
7196434 Modular contactor assembly having independently controllable contractors Mar. 27, 2007
7166934 Package-based voltage control Jan. 23, 2007
7091633 Current-limiting logic interface circuit Aug. 15, 2006
7082020 Electronic switching device and an operating method thereof Jul. 25, 2006
7067940 Submarine branching unit having asymmetrical architecture Jun. 27, 2006
7057311 Isolation contactor assembly having independently controllable contactors Jun. 6, 2006
6960844 Electric switching device Nov. 1, 2005
6917506 Control apparatus for master/slave outlets Jul. 12, 2005
6906579 Optimal inductor management Jun. 14, 2005
6876104 High-speed switching circuit and automotive accessory controller using same Apr. 5, 2005
6812595 Protection circuit for reducing noise received at a circuit operating on a voltage reference supply Nov. 2, 2004
RE38625 Static switch method and apparatus Oct. 19, 2004
6770985 In-vehicle electric load drive/controlling device incorporating power MOSFET thermal protection Aug. 3, 2004
6768228 AC power protection unit Jul. 27, 2004
6765775 Submarine cable branching unit with current limiter Jul. 20, 2004
6750565 Method of switching on an inductive load Jun. 15, 2004
6710474 Circuit arrangement for switching on a partial circuit arrangement Mar. 23, 2004
6628014 Cable voltage drop compensation in an electric power supply system Sep. 30, 2003
6614355 System and method for sampling an AC switch Sep. 2, 2003
6603221 Solid state electrical switch Aug. 5, 2003
6590304 Electrical peak load distributor Jul. 8, 2003
6504269 Input device and electronic appliance using the same Jan. 7, 2003
6492747 Electric fuse Dec. 10, 2002
6459174 Protection circuit for reducing noise received at a circuit operating on a voltage reference supply Oct. 1, 2002
6452291 Reduction of switching transients via large signal/small signal thresholding Sep. 17, 2002
6445276 Electrical fuse for use in motor vehicles Sep. 3, 2002
6441463 IGBT, control circuit, and protection circuit on same substrate Aug. 27, 2002
6414405 Method and apparatus for operating cabled-fiber undersea network, and fault-tolerant branching unit for use therein Jul. 2, 2002
6414404 Power switching circuit Jul. 2, 2002
6404080 Electronic means to sense actuation of AC output control circuitry Jun. 11, 2002

1 2 3 4


 
 
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