Power supply controller and semiconductor device

Details Power supply controller and semiconductor device Power supply controller and semiconductor device

2011-04-12

2011-04-12

Jackson, Stephen W (Department: 2836)

Electricity: electrical systems and devices

Safety and protection of systems and devices

With specific current responsive fault sensor

Reexamination Certificate

active

07924542

ABSTRACT:
A voltage-dividing circuit60, which is formed of serially connected voltage-dividing resistors R1, R2, R3, is disposed between the source terminal S of a power MOSFET15and the ground. The divided voltage Va at a connecting point A is applied to one of the input terminals of a comparator62, while the divided voltage Vb at a connecting point B is applied to one of the input terminals of a comparator64. The other input terminals of the comparators62, 64are connected to the connecting line between an external terminal P4, to which an external resistor12is connected, and an FET30.

REFERENCES:
patent: 7701686 (2010-04-01), Kato et al.
patent: 1 793 496 (2007-06-01), None
patent: A 4-142468 (1992-05-01), None
patent: A 2000-235424 (2000-08-01), None
patent: A 2001-217696 (2001-08-01), None
patent: A 2003-87959 (2003-03-01), None
patent: A 2005-27380 (2005-01-01), None
Japanese Office Action issued in Japanese Patent Application No. 2007-518937, on Feb. 25, 2010, (with English Translation).

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