Undervoltage lockout circuit

Details Undervoltage lockout circuit Undervoltage lockout circuit

2011-06-07

2011-06-07

Leja, Ronald W (Department: 2836)

Electricity: electrical systems and devices

Safety and protection of systems and devices

With specific voltage responsive fault sensor

Reexamination Certificate

active

07957113

ABSTRACT:
An objective is to provide a highly-reliable undervoltage lockout circuit which can block and permit normal gate-driver output even when a supply voltage steeply increases. The undervoltage lockout circuit includes a reference-voltage circuit for outputting a reference voltage, a monitor-voltage circuit for outputting a monitor voltage, and a comparator for outputting, the reference voltage and the monitor voltage being inputted thereinto, a high/low signal, according to a comparison result of the reference voltage and the monitor voltage, in which the time constant of the monitor-voltage circuit for determining an increasing rate of the monitor voltage is set higher than that of the reference-voltage circuit for determining that of the reference voltage.

REFERENCES:
patent: 4473861 (1984-09-01), Kosak et al.
patent: 5465188 (1995-11-01), Pryor et al.
patent: 5548220 (1996-08-01), Kawamoto et al.
patent: 5621296 (1997-04-01), Werner et al.
patent: 7652615 (2010-01-01), Thomas et al.
patent: 2006/0282703 (2006-12-01), Nam
patent: 2008/0247110 (2008-10-01), Yamamoto
patent: 2009/0052653 (2009-02-01), Ding et al.
patent: 5-203684 (1993-08-01), None

Affiliated with

Also associated with

Rating

Undervoltage lockout 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 Undervoltage lockout circuit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Undervoltage lockout circuit will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2691646