High current charge pump for intelligent power switch drive

Details High current charge pump for intelligent power switch drive High current charge pump for intelligent power switch drive

2008-01-15

2008-01-15

Tra, Quan (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Specific identifiable device, circuit, or system

With specific source of supply or bias voltage

C327S108000

Reexamination Certificate

active

07319359

ABSTRACT:
A current limiting driver circuit for a semiconductor power switch and a switching device including same. The driver circuit includes a sensing circuit for providing a signal representing the current flowing through the semiconductor power switch, a driver circuit for the power switch, a driver circuit for the sensing circuit, and a comparator circuit having a first input provided by an output of the sensing circuit, a second input provided by a reference signal, and an output provided as a signal input for the first and second driver circuits. A first charge pump provides the supply voltage for the driver circuits, and a second charge pump provides the supply voltage for the comparator, which is higher than the supply voltage for the power switch and the sensing circuit, so that the first and second driver circuits limit the current through the power switch and the sensing circuit even when the output of the sensing circuit approaches the value of the reference signal.

REFERENCES:
patent: 5949249 (1999-09-01), Preuss et al.
patent: 6392472 (2002-05-01), Kobayashi et al.
patent: 2002/0014914 (2002-02-01), Perque et al.

Affiliated with

Also associated with

Rating

High current charge pump for intelligent power switch drive does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with High current charge pump for intelligent power switch drive, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and High current charge pump for intelligent power switch drive will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2806212