DNisbett

Diagnostic Technique Detects Open and Short Circuits in Wiring Harnesses

Blog Post created by DNisbett Employee on Jul 13, 2012

Did you know that the wiring harness in most modern automobiles is the second most costly item, first only by the powertrain?  Diagnosing cable faults in automotive applications then becomes a very important function to help reduce cost and save time.

In my article I offer a circuit idea that provides a robust, cost-effective technique for implementing wire diagnostics on a video transmission line in automotive applications. The circuit uses an ADA4433-1 fully integrated video reconstruction filter as part of the video transmission signal chain and an ADA4830-1 high-speed difference amplifier as the detection circuit. The circuit can effectively detect and identify short-to-battery, short-to-ground, open-circuit, and short-circuit faults.

You can read the entire article titled Diagnostic Technique Detects Open and Short Circuits in Wiring Harnesses in this month's issue of Analog Dialogue.

I would love to hear any feedback or comments on this article or this topic in general. You can leave your feedback in the comment section below.

 

 

Thanks

 

-Don

Outcomes