how to prevent voltage spike?
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Forum Name: General Discussion
Forum Discription: General Mobile Electronics Questions and Answers
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=80236
Printed Date: May 10, 2025 at 3:06 PM
Topic: how to prevent voltage spike?
Posted By: testtones
Subject: how to prevent voltage spike?
Date Posted: July 12, 2006 at 10:16 PM
I have air suspension in my car there is 8 solonoid controled valves, controled from a switch box that has 1 power feeding all the switches (1 switch per valve). Whenever I hit a switch I get a pop through the speakers in my car. I believe it is caused by a voltage spike. Will a diode fix this? if so how do I wire the diode? Thanks for the help
Replies:
Posted By: geepherder
Date Posted: July 13, 2006 at 6:21 AM
Suppression diodes may work. You want to place a diode across each of the coils, only backwards. Whichever side of the coils recieves 12 volts, that's the side that you connect the stripe side (cathode) of the diode.
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My ex once told me I have a perfect face for radio.
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