Low-consumption inhibit circuit with hysteresis

Details Low-consumption inhibit circuit with hysteresis Low-consumption inhibit circuit with hysteresis

2005-06-01

2008-09-02

Richards, N. Drew (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Synchronizing

C327S198000

Reexamination Certificate

active

07420397

ABSTRACT:
An inhibit circuit which produces an inhibit signal when a variation in a power supply potential is detected includes a comparator having a negative input connected to a generator producing a reference potential and a positive input connected to an output of a first image circuit producing a first potential that is an image of the power supply potential. The first image circuit includes a diode and a circuit for the production of a reference current parallel-connected between a common point to which the power supply potential is applied and an output of the first image circuit connected to the positive input of the comparator. The circuit has particular utility in portable integrated circuits with very low consumption when idle such as in mobile telephony.

REFERENCES:
patent: 4527076 (1985-07-01), Matsuo et al.
patent: 5103158 (1992-04-01), Cho et al.
patent: 5414378 (1995-05-01), Edgar et al.
patent: 5828242 (1998-10-01), Danstrom
patent: 5856756 (1999-01-01), Sasahara et al.
patent: 5880611 (1999-03-01), Danstrom
patent: 6151230 (2000-11-01), Savelli
patent: 6346834 (2002-02-01), Chai
patent: 6437614 (2002-08-01), Chen
patent: 6683481 (2004-01-01), Zhou et al.
patent: 6686783 (2004-02-01), Huang
patent: 6879194 (2005-04-01), Caldwell
patent: 6894544 (2005-05-01), Gubbins
patent: 6940335 (2005-09-01), Otake
patent: 6975164 (2005-12-01), Matsui et al.
patent: 7030668 (2006-04-01), Edwards
patent: 7116139 (2006-10-01), Mitchell
patent: 7167654 (2007-01-01), Tokita et al.
patent: 2 844 118 (2004-03-01), None
patent: 59228426 (1984-12-01), None
patent: WO 2004/057449 (2004-07-01), None
patent: WO 2004/057449 (2004-07-01), None
FR 0405904 Preliminary Search Report, Dec. 14, 2004.

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