I have a 30V 30A DC source and would like to adapt this for TIG welding thin stuff. To do this I need to be able to set the current to a constant value. What’s the best way to accomplish this? It will only be running for a minute at a time then I can let it cool down for a while. I only have experience with using constant current IC’s at say a couple of amps for battery charging and am thinking there is probably a better/clever method when at 30 amps…
I’d also like, further down the line, the ability to vary the current fairly quickly with a microcontroller.
Thanks very much!