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Old 01-25-2009, 01:17 AM   #22 (permalink)
NiHaoMike
Master EcoModder
 
Join Date: Sep 2008
Location: Texas
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The peak voltage of 120v AC is 170v, which should be plenty for most DIY EVs.

Directly rectify the AC, maybe with a voltage doubler for higher voltage batteries, and then use a buck regulator. Should be easily achievable using mostly off-the-shelf components. Start in current limit mode and switch to constant voltage once desired voltage is reached, then completely turn off after a while (or go into float charge).
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