Hi all,
I have a welding transformer that produces an output of either 50V AC or 80V AC (open circuit voltage) at a range of currents of up to 200 Amps. I want to convert this to DC, preferably by full wave rectification, whilst maintaining the same range of currents. This will then form the power supply for a dual purpose TIG welder/plasma cutter I'm going to build. Any suggestions as to how to go about the rectificaiton? I've seen a lot of 50A bridge rectifiers going cheap on Ebay. Could I use four of them in some sort of combination to get the desired result? 200A versions are much harder to find and cost far more proportionally.
cheers,
cd/pb