ebay. Since you did not even post the minimum info like what voltage and current you need, I can't go find one for you. But ebay has tons of them for prices so low you could not even buy half the parts to build one.i just want to make the 300 watt smps based battery charger with low cost any one help
by Jake Hertz
by Aaron Carman
by Jake Hertz
by Duane Benson