I am in need of a high current low voltage DC power supply, around 8 volts and around 250 Amps would be ideal. A transformer could take a 110v 20a house line and using Pincoming = IPVP = Poutgoing = ISVS and get (110vx20a)/8v= and get 275a which is good. But how do I make that DC? I know that diode bridges are the norm for converting AC current to DC current but I have done a fair amount of browsing and found none that have the requirements that I need. I think the most I have seen are like 35 amp continuous and 400 amp surge. Anyone have any ideas?