Integrated circuit device having ground open detection circuit

Details Integrated circuit device having ground open detection circuit Integrated circuit device having ground open detection circuit

2011-05-31

2011-05-31

Nguyen, Ha Tran T (Department: 2858)

Electricity: measuring and testing

Fault detecting in electric circuits and of electric components

Of individual circuit component or element

Reexamination Certificate

active

07952371

ABSTRACT:
An integrated circuit device includes a chip having a power supply terminal, a ground terminal, an input terminal, and an internal circuit formed therein. The chip comprises: a unidirectional device disposed between the input terminal and the ground terminal and directed from the ground terminal to the input terminal; and a ground open detection circuit including a first transistor having the gate connected to the input terminal and the source and the drain connected between the power supply terminal and the ground terminal, a second transistor having the gate connected to the ground terminal and the source and the drain connected between the power supply terminal and the ground terminal, and a comparator for comparing potentials of nodes respectively between drains of the first and second transistors and the power supply terminal, and for outputting a ground open detection signal.

REFERENCES:
patent: 6150831 (2000-11-01), Asai et al.
patent: 7049850 (2006-05-01), Shimizu
patent: 7609080 (2009-10-01), Miller et al.
patent: 2002/0063251 (2002-05-01), Sugiura et al.
patent: 2005/0110526 (2005-05-01), Ishibashi et al.
patent: 2007/0013383 (2007-01-01), Parker et al.
patent: 2007/0296455 (2007-12-01), Ishibashi et al.
patent: 11-142462 (1999-05-01), None
patent: 2001-150688 (2001-06-01), None
patent: 2002-162448 (2002-06-01), None
patent: 2005-057677 (2005-03-01), None

Affiliated with

Also associated with

Rating

Integrated circuit device having ground open detection circuit does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Integrated circuit device having ground open detection circuit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Integrated circuit device having ground open detection circuit will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2650616