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-   -   12-14V power supply questions. (http://www.diyaudio.com/forums/solid-state/49304-12-14v-power-supply-questions.html)

JZatopa 10th January 2005 09:23 PM

12-14V power supply questions.
 
I am looking into building a powersupply for testing car amps. I need to supply 14.4V but at upto 80-100amps. Do I just use a large 12v Toroid with a lot of capacitance or is there something else I should be considering.

AndrewT 10th January 2005 10:26 PM

Hi,
instead of large caps try a large lead/acid battery.
It will give good DC even with high charging pulses.
regards Andrew T.

Stocker 10th January 2005 11:37 PM

If all you want is short (relatively anyway) playtimes a battery (or multiple battery) setup is fine. You still need a charger, and the voltage will be constantly dropping. If you have the $$ and the inclination, a big transformer and monstrous caps will play as long as you please. Either will work.

Post photos when you finish though! :D


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