Negative voltage detection circuit and semiconductor...

Details Negative voltage detection circuit and semiconductor... Negative voltage detection circuit and semiconductor...

2008-09-22

2010-06-08

Elms, Richard (Department: 2824)

Static information storage and retrieval

Read/write circuit

Differential sensing

C365S230060, C327S534000, C327S538000

Reexamination Certificate

active

07733730

ABSTRACT:
A negative voltage detection circuit including first and second MOS transistor circuits configured to change a dimension size of a transistor based on a control signal, a first comparator circuit, a gate electrode of the second MOS transistor circuit commonly coupled to the gate electrode of the first MOS transistor circuit forming a current mirror circuit, a resistive divider supplied with a negative voltage to be detected, and coupled to the end of the current path of the second MOS transistor circuit to generate a second voltage, a second voltage comparator circuit to compare the second voltage with a reference voltage and to generate a detection signal corresponding to the value of the negative voltage, and a detection circuit for detecting a temperature or power supply voltage, generate the control signal corresponding to the detection result, and supply the control signal to the first and second MOS transistor circuits.

REFERENCES:
patent: 6084387 (2000-07-01), Kaneko et al.
patent: 6566931 (2003-05-01), Higuchi
patent: 7524108 (2009-04-01), Yoshida et al.
patent: 2009/0174468 (2009-07-01), Yoshida et al.
patent: 11-219596 (1999-08-01), None
patent: 2000-19200 (2000-01-01), None
patent: 2001-325033 (2001-11-01), None
patent: 2004-350290 (2004-12-01), None

Affiliated with

Also associated with

Rating

Negative voltage detection circuit and semiconductor... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Negative voltage detection circuit and semiconductor..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Negative voltage detection circuit and semiconductor... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4244417