12v to 25v converter

how would i stepup 12 to 25v at 10A ?
i googled it and only can find commercial stuff !!

it's to run an AT computer (bare bones) from a 12v battery

power supply

hi,

use a "switch mode power "supply and do a google search and there are lots of the circuit diagram

if this ic MC34063A is available to you, i have the working circuit for that and can send it via e-mail. :wink:

Check out the LM2524d and LM2577 data sheets.