Over-power protection circuit for power converter

Details Over-power protection circuit for power converter Over-power protection circuit for power converter

2005-12-05

2009-02-03

Jackson, Stephen W (Department: 2836)

Electricity: electrical systems and devices

Safety and protection of systems and devices

With specific voltage responsive fault sensor

Reexamination Certificate

active

07486493

ABSTRACT:
The present invention proposes an over-power protection apparatus for a power converter. An oscillator outputs a clock signal. By comparing a sense signal with a threshold signal, an over-power comparative unit outputs a protection signal to an accumulating trigger unit. The accumulating trigger unit is accumulating and counting the protection signal in response to the clock signal. The accumulating trigger unit further outputs an off signal to a latch unit as a period of the protection signal reaches a predetermined clock counts. In response to the off signal, the latch unit outputs a latch signal to a driving output unit for disabling a switching signal to a power switch. Therefore, the power switch is turned off and the over-power protection can be accomplished.

REFERENCES:
patent: 4777331 (1988-10-01), Borst
patent: 5687066 (1997-11-01), Cook, II
patent: 5796270 (1998-08-01), Fifield et al.
patent: 6137668 (2000-10-01), Feldtkeller
patent: 6418002 (2002-07-01), Yang et al.
patent: 2004/0184206 (2004-09-01), Nomura et al.
patent: 2004/0207967 (2004-10-01), Ohshima

Affiliated with

Also associated with

Rating

Over-power protection circuit for power converter does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Over-power protection circuit for power converter, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Over-power protection circuit for power converter will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4127826