12-14V power supply questions. - diyAudio
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Old 10th January 2005, 09:23 PM   #1
JZatopa is offline JZatopa  United States
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Join Date: May 2003
Location: Chicago
Default 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.
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Old 10th January 2005, 10:26 PM   #2
AndrewT is offline AndrewT  Scotland
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Join Date: Jul 2004
Location: Scottish Borders
instead of large caps try a large lead/acid battery.
It will give good DC even with high charging pulses.
regards Andrew T.
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Old 10th January 2005, 11:37 PM   #3
Stocker is offline Stocker  United States
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Join Date: Dec 2003
Location: Austin
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!
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