charging a cap?
Printed From: the12volt.comForum Name: Car Audio
Forum Discription: Car Stereos, Amplifiers, Crossovers, Processors, Speakers, Subwoofers, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=36430
Printed Date: April 30, 2024 at 5:00 PM
Topic: charging a cap?
Posted By: shott8283
Subject: charging a cap?
Date Posted: July 29, 2004 at 8:12 PM
Replies:
Posted By: shredder130
Date Posted: July 29, 2004 at 9:31 PM
Posted By: xetmes
Date Posted: July 29, 2004 at 9:43 PM
lol @ shredder
why do you charge a cap?
Beacuse uncharged capacitors will draw an increadible current when first charged. This displacement current can draw as much (theoretically) as a dead short circuit for a short amount of time before charging. In other words, charging keeps the fuses intact and the wire from lighting on fire...
when do you charg a cap during install procedure
I always though it should be charged after mechanically installed and before any wiring is hooked to it...
how to charge a cap?
Usually caps come with devices for charging, its just a glorified resistor, you are tring to avoid that short amound of infinite (theoretically) current draw. So you put a resistor in series to charge it.
do you have to?
Its a good way to avoid blown fuses and broken caps, but its your call. It looks fine from my house 
Posted By: Charles_R_H
Date Posted: July 30, 2004 at 9:56 AM