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Class Information
Number: 361/92
Name: Electricity: electrical systems and devices > Safety and protection of systems and devices > With specific voltage responsive fault sensor > Undervoltage
Description: Subject matter under subclass wherein in fault sensor is responsive to an undervoltage condition.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7417336 |
Combination current hysteresis and voltage hysteresis control for a power converter |
Aug. 26, 2008 |
| 7408475 |
Power supply monitoring device |
Aug. 5, 2008 |
| 7372684 |
Power supply device |
May. 13, 2008 |
| 7369384 |
Regulator and electronic apparatus therewith |
May. 6, 2008 |
| 7349190 |
Resistor-less accurate low voltage detect circuit and method for detecting a low voltage condition |
Mar. 25, 2008 |
| 7336060 |
Circuit and method for controlling a DC-DC converter by enabling the synchronous rectifier during undervoltage lockout |
Feb. 26, 2008 |
| 7310211 |
Method for suppressing latch-ups occurring in a circuit, and systems for carrying out said method |
Dec. 18, 2007 |
| 7301736 |
Method and device for shutting down a drive with a matrix converter during a power outage |
Nov. 27, 2007 |
| 7262945 |
Electrical over/under voltage automatic disconnect apparatus and method |
Aug. 28, 2007 |
| 7262947 |
Low voltage interrupter for electric winch |
Aug. 28, 2007 |
| 7224562 |
Short-circuit protective circuit |
May. 29, 2007 |
| 7218495 |
Method and apparatus for fault condition protection of a switched mode power supply |
May. 15, 2007 |
| 7212392 |
Personal body grounding system instrumentation and process |
May. 1, 2007 |
| 7196891 |
Control circuit for frequency converter |
Mar. 27, 2007 |
| 7161393 |
Current regulation circuit |
Jan. 9, 2007 |
| 7149068 |
Circuit for controlling the minimum operating voltage of switching power supply |
Dec. 12, 2006 |
| 7142404 |
System and method for domain power monitoring and notification |
Nov. 28, 2006 |
| 7112900 |
Method and system for sensing switch position to prevent inadvertent startup of a motor |
Sep. 26, 2006 |
| 7046155 |
Fault detection system |
May. 16, 2006 |
| 7006340 |
Circuit configuration for protecting a battery against deep discharge |
Feb. 28, 2006 |
| 6970334 |
Power regulation loop performs two functions |
Nov. 29, 2005 |
| 6958897 |
Electrical load drive control apparatus and electrical load drive control method |
Oct. 25, 2005 |
| 6944003 |
Semiconductor integrated circuit with voltage-detecting circuit and signal transmitting and receiving system |
Sep. 13, 2005 |
| 6876531 |
Device for detecting failure of field effect transistor |
Apr. 5, 2005 |
| 6862163 |
Method and device for bridging brief power outages in a matrix converter |
Mar. 1, 2005 |
| 6853295 |
Vehicular control unit with self shut-off function and abnormality detection function |
Feb. 8, 2005 |
| 6842321 |
Supply independent low quiescent current undervoltage lockout circuit |
Jan. 11, 2005 |
| 6819534 |
Three-in-one protection circuit against out-rush current, short circuit and overload |
Nov. 16, 2004 |
| 6788511 |
Domain power notification system |
Sep. 7, 2004 |
| 6782298 |
Electronics for a shock hardened data recorder |
Aug. 24, 2004 |
| 6781807 |
Field device power supply failure detection |
Aug. 24, 2004 |
| 6775118 |
Supply voltage reference circuit |
Aug. 10, 2004 |
| 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 |
| 6759964 |
Fault detection system |
Jul. 6, 2004 |
| 6727555 |
Device for protecting electronic components |
Apr. 27, 2004 |
| 6697243 |
Under voltage release with an electromagnet and clocked holding current circuit |
Feb. 24, 2004 |
| 6657840 |
Protecting circuit of horizontal transistor |
Dec. 2, 2003 |
| 6646845 |
Battery protection system and method |
Nov. 11, 2003 |
| 6615146 |
Failure detection of an isolation device with PFA signal generation in a redundant power supply system |
Sep. 2, 2003 |
| 6600639 |
Precision low voltage supply system and method with undervoltage lockout capabilities |
Jul. 29, 2003 |
| 6587324 |
Power-off protection device |
Jul. 1, 2003 |
| 6577484 |
Arc fault detector device utilizing the di/dt and 60 Hz components of an arcing waveform |
Jun. 10, 2003 |
| 6570505 |
LED lamp with a fault-indicating impedance-changing circuit |
May. 27, 2003 |
| 6570401 |
Dual rail power supply sequence tolerant off-chip driver |
May. 27, 2003 |
| 6567252 |
Protection circuit for a power supply unit and respective power supply unit |
May. 20, 2003 |
| 6560494 |
Electronics for a shock hardened data recorder |
May. 6, 2003 |
| 6534991 |
Connection tester for an electronic trip unit |
Mar. 18, 2003 |
| 6496344 |
Circuit for supplying a consumer with electric energy |
Dec. 17, 2002 |
| 6465914 |
Microcontroller power removal reset circuit |
Oct. 15, 2002 |
| 6442050 |
Protection circuit and method for switching power supply |
Aug. 27, 2002 |
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