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Browse by Category: Main > Electrical & Energy
Class Information
Number: 361/98
Name: Electricity: electrical systems and devices > Safety and protection of systems and devices > With specific current responsive fault sensor > With time delay protective means > Transistorized
Description: Subject matter wherein the protective system utilizes solid state components.










Patents under this class:
1 2 3 4 5

Patent Number Title Of Patent Date Issued
8674631 Power conversion apparatus and method of controlling capacitor voltage of power conversion apparatus Mar. 18, 2014
8494178 Avoiding audio feedback Jul. 23, 2013
8314697 Electric system and alarm device thereof Nov. 20, 2012
8284535 Backup tripping function for a circuit breaker with microcontroller-based fault detection Oct. 9, 2012
8279571 Electrical power switching with efficient switch protection Oct. 2, 2012
8203197 Thermally enhanced semiconductor devices Jun. 19, 2012
8203312 Battery pack and control method Jun. 19, 2012
8194377 Driver and over-current protection circuit therein Jun. 5, 2012
8159801 Switched hot swap controller Apr. 17, 2012
8134253 Load driving circuit, integrated circuit, DC-DC converter, and load driving method Mar. 13, 2012
8116050 Semiconductor integrated circuit Feb. 14, 2012
8116056 Low voltage startup timer for a microcontroller-based circuit breaker Feb. 14, 2012
8072726 Radiation-tolerant inrush limiter Dec. 6, 2011
8054605 Power supply controller Nov. 8, 2011
8018703 Auxiliary device and data transmission method, auxiliary unit and electrical circuit breaker comprising said device Sep. 13, 2011
7995317 Dual voltage hot swap module power control Aug. 9, 2011
7907377 Arrangement and method for an integrated protection for a power system Mar. 15, 2011
7885049 Electrical power switching with efficient switch protection Feb. 8, 2011
7663457 Magnetic latch for a voice coil actuator Feb. 16, 2010
7652858 Protection for permanent magnet motor control circuits Jan. 26, 2010
7504743 Power supply control device for on-vehicle electrical loads Mar. 17, 2009
7489490 Current limiting MOSFET structure for solid state relays Feb. 10, 2009
7446507 Overcurrent detection method and detection circuit Nov. 4, 2008
7359171 Current limiting circuit and output circuit including the same Apr. 15, 2008
7330343 Current-limiting protection circuit for a power supply Feb. 12, 2008
7327543 Method and device for switching a semi-conductor circuit breaker Feb. 5, 2008
7259950 Load-protection control circuit of power supply Aug. 21, 2007
7203046 Overcurrent detecting device Apr. 10, 2007
7161782 Intelligent fuse box for the power distribution system of a vehicle Jan. 9, 2007
7116160 Booster Oct. 3, 2006
6760202 Electrical coil module, an electrical coil comprising such modules, and actuation mechanism including such a coil and a circuit breaker comprising such an actuation mechanism Jul. 6, 2004
6696708 Electrostatic discharge protection apparatus Feb. 24, 2004
6624994 Apparatus and method for over-current protection of an analog switch Sep. 23, 2003
6594131 Over current protection circuit of semiconductor switching device Jul. 15, 2003
6362943 Active current limiter Mar. 26, 2002
6331687 Control method and device for a switchgear actuator Dec. 18, 2001
6208175 Circuit arrangement for the evaluating a binary signal defined by current threshold values Mar. 27, 2001
6137668 Power switch with overload protection Oct. 24, 2000
6055149 Current limited, thermally protected, power device Apr. 25, 2000
6016245 Voltage overshoot protection circuit Jan. 18, 2000
6011416 Switch circuit having excess-current detection function Jan. 4, 2000
5969926 Short circuit protection arrangement for an output buffer of an integrated circuit Oct. 19, 1999
5943205 Driver and overload protection circuit Aug. 24, 1999
5915232 Method and apparatus for tracking power of an integrated circuit Jun. 22, 1999
5825602 Overcurrent trip device Oct. 20, 1998
5812353 Current limiter for electrical transmission/distribution protection systems Sep. 22, 1998
5793596 Floating positive circuit breaker Aug. 11, 1998
5751051 Semiconductor device equipped with electrostatic breakdown protection circuit May. 12, 1998
5737169 Intrinsic element sensing integrated SOA protection for power MOSFET switches Apr. 7, 1998
5737170 Thermal shutdown circuit using a pair of scaled transistors Apr. 7, 1998

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