Circuit and method of measuring squib resistance

Details Circuit and method of measuring squib resistance Circuit and method of measuring squib resistance

1994-12-05

1996-04-09

Wieder, Kenneth A.

Electricity: measuring and testing

Fault detecting in electric circuits and of electric components

Of individual circuit component or element

324705, 324725, 340638, 365201, G01R 2702

Patent

active

055065090

ABSTRACT:
A resistance measuring circuit (10) generates a predetermined reference voltage and impresses that reference voltage across a squib detonation device (12). The resulting current flowing through the squib is mirrored by a current mirror (42,52,54) for providing multiple mirrored currents. The mirrored currents are compared to known current sources (58,60). The output signals go high or low depending on whether the mirrored currents are greater than or less than the fixed current sources. The output signals provide an indication as to whether the measured squib resistance is within a specified resistance range. The current sources may be precisely matched to maintain high accuracy in measuring the resistance.

REFERENCES:
patent: 4518869 (1985-05-01), Herold
patent: 5059916 (1991-10-01), Johnson

Affiliated with

Also associated with

Rating

Circuit and method of measuring squib resistance 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 of measuring squib resistance, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Circuit and method of measuring squib resistance will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-141351