Circuit and method for detecting a dielectric breakdown fault

Details Circuit and method for detecting a dielectric breakdown fault Circuit and method for detecting a dielectric breakdown fault

2007-05-11

2009-12-29

Dole, Timothy J (Department: 2831)

Electricity: measuring and testing

Fault detecting in electric circuits and of electric components

For fault location

C324S511000, C322S099000

Reexamination Certificate

active

07639021

ABSTRACT:
An improved circuit and method for detecting dielectric breakdown and ground fault conditions is provided. The circuitry and method of the present invention include taking a continuous voltage reading of the high voltage battery and sampling the continuous voltage reading of the high voltage battery at a fixed time interval. The circuitry and method calculate a change in the continuous voltage reading of the high voltage battery over the change in time and repeatedly calculate an optimum fixed time interval and an optimum change in voltage over time. Storage of the optimum fixed time interval and optimum change in voltage over time provides for repeatedly comparing the optimum change in voltage over the fixed time interval to the constant voltage of the high voltage battery to calculate the resistance of the dielectric breakdown fault. The calculation of the resistance of the dielectric breakdown fault is carried out independently of the capacitance of the electric circuit. The circuit and method provide adjustment of the optimum fixed time interval to improve the speed of the comparison of the optimum change in voltage over time to the constant voltage of the high voltage battery to calculate the resistance of the dielectric breakdown fault.

REFERENCES:
patent: 4929901 (1990-05-01), Kimball et al.
patent: 6075339 (2000-06-01), Reipur et al.
patent: 6856137 (2005-02-01), Roden et al.
patent: 6861895 (2005-03-01), Liu et al.
patent: 2002/0121902 (2002-09-01), Suzuki

Affiliated with

Also associated with

Rating

Circuit and method for detecting a dielectric breakdown fault does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Circuit and method for detecting a dielectric breakdown fault, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Circuit and method for detecting a dielectric breakdown fault will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4108335