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Class Information
Number: 361/86
Name: Electricity: electrical systems and devices > Safety and protection of systems and devices > With specific quantity comparison means > Voltage
Description: Subject matter wherein the protective circuitry is activated by a difference in the compared circuits.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7619864 |
Regulator short-circuit protection circuit and method |
Nov. 17, 2009 |
| 7570026 |
Protection circuit with minimized voltage reference unevenness between charger and battery pack |
Aug. 4, 2009 |
| 7557724 |
Device for detecting a fault current in an electronic apparatus |
Jul. 7, 2009 |
| 7558037 |
Over current protection circuit and method |
Jul. 7, 2009 |
| 7551412 |
Wiring fault correction circuit |
Jun. 23, 2009 |
| 7552367 |
Fault recording and sequence of events recording device capable of recording communication-based signals related to electrical power systems |
Jun. 23, 2009 |
| 7548402 |
High voltage pulse generating circuit |
Jun. 16, 2009 |
| 7542257 |
Power control methods and apparatus for variable loads |
Jun. 2, 2009 |
| 7526393 |
Virtual branch load management |
Apr. 28, 2009 |
| 7515443 |
Inverter circuit |
Apr. 7, 2009 |
| 7508091 |
Vehicle battery protection device |
Mar. 24, 2009 |
| 7505237 |
Electrical safety outlet |
Mar. 17, 2009 |
| 7489487 |
Multi-level power converter |
Feb. 10, 2009 |
| 7480124 |
Detection of an AC input phase-loss on a multi-phase AC servo drive |
Jan. 20, 2009 |
| 7468873 |
Over-voltage protected semiconductor device |
Dec. 23, 2008 |
| 7457089 |
Load driving device with diagnosing unit for overcurrent detector |
Nov. 25, 2008 |
| 7423389 |
LED driving device of overvoltage protection and duty control |
Sep. 9, 2008 |
| 7362558 |
Protective device in a controller |
Apr. 22, 2008 |
| 7337081 |
Metering device with control functionality and method thereof |
Feb. 26, 2008 |
| 7265958 |
Overcurrent protection circuit and semiconductor apparatus |
Sep. 4, 2007 |
| 7265955 |
Protective circuit for analog sensors |
Sep. 4, 2007 |
| 7253997 |
Method and apparatus providing a multi-function terminal for a power supply controller |
Aug. 7, 2007 |
| 7161393 |
Current regulation circuit |
Jan. 9, 2007 |
| 7123460 |
Methods and systems for reducing power-on failure of integrated circuits |
Oct. 17, 2006 |
| 7099128 |
Fault condition protection |
Aug. 29, 2006 |
| 6989978 |
Power circuit device for vehicles and control method thereof |
Jan. 24, 2006 |
| 6917188 |
Power converter circuitry and method |
Jul. 12, 2005 |
| 6876531 |
Device for detecting failure of field effect transistor |
Apr. 5, 2005 |
| 6839211 |
Methods and systems for reducing power-on failure of integrated circuits |
Jan. 4, 2005 |
| 6831821 |
Semiconductor switching device with function for vibrating current, thereby shutting down over-current |
Dec. 14, 2004 |
| 6791283 |
Dual mode regulated light-emitting diode module for flashlights |
Sep. 14, 2004 |
| 6785106 |
Integrate circuit device |
Aug. 31, 2004 |
| 6778365 |
Charging circuit |
Aug. 17, 2004 |
| 6731485 |
Digital power inverter |
May. 4, 2004 |
| 6724595 |
Output driver with over voltage protection |
Apr. 20, 2004 |
| 6717785 |
Semiconductor switching element driving circuit |
Apr. 6, 2004 |
| 6708126 |
Method and system for measuring current |
Mar. 16, 2004 |
| 6687106 |
Power module |
Feb. 3, 2004 |
| 6667869 |
Power control system and method for illumination array |
Dec. 23, 2003 |
| 6657838 |
LCD backlight inverter |
Dec. 2, 2003 |
| 6646845 |
Battery protection system and method |
Nov. 11, 2003 |
| 6639774 |
Damping circuit for a two-wire bus system |
Oct. 28, 2003 |
| 6633469 |
Power semiconductor circuit |
Oct. 14, 2003 |
| 6606227 |
High voltage battery cutout circuit for a motor vehicle electrical system |
Aug. 12, 2003 |
| 6560083 |
Dynamic critical battery detection mechanism |
May. 6, 2003 |
| 6529356 |
Power polarity reversal protecting circuit for an integrated circuit |
Mar. 4, 2003 |
| 6480367 |
Dual-switching and dual-linear power controller chip |
Nov. 12, 2002 |
| 6473282 |
Latch-up protection circuit for integrated circuits biased with multiple power supplies and its method |
Oct. 29, 2002 |
| 6441675 |
Method and apparatus for detection of electrical overstress |
Aug. 27, 2002 |
| 6433616 |
Method and apparatus for detection of electrical overstress |
Aug. 13, 2002 |
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