Power supply controller

Details Power supply controller Power supply controller

2006-12-26

2010-10-12

Jackson, Stephen W (Department: 2836)

Electricity: electrical systems and devices

Safety and protection of systems and devices

With specific current responsive fault sensor

C361S087000, C361S093500, C361S093700

Reexamination Certificate

active

07813096

ABSTRACT:
A second forcing shutoff operation is performed for a power MOSFET15and the like, if a time when a load current (or a sense current Is) passing on a power supply line L exceeds a first threshold current Ia reaches a first reference time. On the other hand, the count value of a fuse time counter71is cleared to be “zero” so that the shutoff operation for the power MOSFET15and the like is not performed, if a normal state, in which neither an overcurrent nor a fuse current has occurred, continues for a second reference time without the first reference time being reached.

REFERENCES:
patent: 6407537 (2002-06-01), Antheunis
patent: 7079368 (2006-07-01), Ishikawa et al.
patent: 7224155 (2007-05-01), Bo et al.
patent: 2002/0141126 (2002-10-01), Tabata
patent: 2003/0072120 (2003-04-01), Ishikawa et al.
patent: 102 45 098 (2003-04-01), None
patent: A 11-136846 (1999-05-01), None
patent: A 2001-217696 (2001-08-01), None
patent: A 2003-111264 (2003-04-01), None
Japanese Office Action issued for Japanese Application No. 2007-522745 on Feb. 23, 2010 (with translation).
Office Action issued for German Patent Application No. 11 2006 003 482.0-31 issued Oct. 16, 2009.

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