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Class Information
Number: 361/91.6
Name: Electricity: electrical systems and devices > Safety and protection of systems and devices > With specific voltage responsive fault sensor > Overvoltage > Including p-n junction (e.g., a diode, a zener diode, or transistor) > With zener diode sensor
Description: Subject matter including a zener diode sensor and wherein the overvoltage condition is detected across a zener junction.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7564666 |
Shunt protection circuit and method therefor |
Jul. 21, 2009 |
| 7554782 |
Safety PLC |
Jun. 30, 2009 |
| 7463470 |
Electrical barrier |
Dec. 9, 2008 |
| 7417839 |
Zener-zap memory |
Aug. 26, 2008 |
| 7411770 |
Circuit arrangement with at least two semiconductor switches and a central overvoltage protection |
Aug. 12, 2008 |
| 7339803 |
Inverter bridge short-circuit protection scheme |
Mar. 4, 2008 |
| 7199990 |
Device for short-circuiting two electric lines for reducing a voltage differential |
Apr. 3, 2007 |
| 7154725 |
Hard disk drive (HDD) electrical over voltage stress (EOS) systems and methods |
Dec. 26, 2006 |
| 7131436 |
Engine ignition system having noise protection circuit |
Nov. 7, 2006 |
| 7106567 |
Hard disk drive (HDD) electrical over voltage stress (EOS) systems and methods |
Sep. 12, 2006 |
| 7061738 |
Protective circuit |
Jun. 13, 2006 |
| 6731480 |
Protection circuit for field effect transistor |
May. 4, 2004 |
| 6728084 |
System and method for overvoltage protection of an integrated circuit |
Apr. 27, 2004 |
| 6707656 |
Over-voltage protection against periodic disturbances |
Mar. 16, 2004 |
| 6657839 |
Protective relay |
Dec. 2, 2003 |
| 6473284 |
Low-power dc-to-dc converter having high overvoltage protection |
Oct. 29, 2002 |
| 6307724 |
Accessory apparatus |
Oct. 23, 2001 |
| 6236549 |
Circuit for preventing module damage in integrated circuits which require a plurality of supply voltages |
May. 22, 2001 |
| 6160691 |
Method of driving a load and semiconductor load driver circuit therefor |
Dec. 12, 2000 |
| 6111737 |
Internal voltage protection circuit |
Aug. 29, 2000 |
| 6097582 |
Short circuit protection of IGBTs and other power switching devices |
Aug. 1, 2000 |
| 6031352 |
Active alternator load circuit |
Feb. 29, 2000 |
| 6031705 |
Surge protection circuit, in particular for inputs of integrated circuits |
Feb. 29, 2000 |
| 6028755 |
DC-to-DC converter capable of preventing overvoltages |
Feb. 22, 2000 |
| 5818669 |
Zener diode power dissipation limiting circuit |
Oct. 6, 1998 |
| 5818675 |
Protection device for electronic circuits |
Oct. 6, 1998 |
| 5815356 |
Integrated transient suppressor |
Sep. 29, 1998 |
| 5815353 |
Overvoltage protector |
Sep. 29, 1998 |
| 5764088 |
Control circuit for an electronic switch, and a switch constituting an application thereof |
Jun. 9, 1998 |
| 5729418 |
High voltage current limiting protection circuit and method therefor |
Mar. 17, 1998 |
| 5726853 |
High voltage protection circuit for telephone test set |
Mar. 10, 1998 |
| 5687066 |
Power converter with overvoltage protection |
Nov. 11, 1997 |
| 5650906 |
Circuit arrangement for protecting power semiconductor switches which can be switched on and off against overvoltages |
Jul. 22, 1997 |
| 5606481 |
Overvoltage protection for battery powered equipment |
Feb. 25, 1997 |
| 5587865 |
Electronic control equipment for motor vehicles, particularly, electronic brake control equipment |
Dec. 24, 1996 |
| 5576920 |
Electrostatic destruction preventing circuit and receiving apparatus having the same |
Nov. 19, 1996 |
| 5548462 |
Protective circuit |
Aug. 20, 1996 |
| 5500616 |
Overvoltage clamp and desaturation detection circuit |
Mar. 19, 1996 |
| 5465188 |
Circuit protection device |
Nov. 7, 1995 |
| 5455734 |
Insert device for electrical relays, solenoids, motors, controllers, and the like |
Oct. 3, 1995 |
| 5444591 |
IGBT fault current limiting circuit |
Aug. 22, 1995 |
| 5432667 |
Neutral-to-ground fault sensing circuit |
Jul. 11, 1995 |
| 5410441 |
Circuit for protecting DC powered devices from improper supply voltages |
Apr. 25, 1995 |
| 5335132 |
Overvoltage sensor with hysteresis |
Aug. 2, 1994 |
| 5305176 |
Inductive load drive circuit |
Apr. 19, 1994 |
| 5291365 |
Power supply with overvoltage protection circuit |
Mar. 1, 1994 |
| 5274524 |
Programmable protection circuit and its monolithic manufacturing |
Dec. 28, 1993 |
| 5245499 |
Monolithic overvoltage protection device |
Sep. 14, 1993 |
| 5235215 |
Memory device for use in power control circuits |
Aug. 10, 1993 |
| 5233497 |
Overvoltage protection device |
Aug. 3, 1993 |
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