powernpn
Newbie level 1
Good evening, my first time posting here.
I dont have very much experience with high power electronics and I have a question about Tig welders. I'm thinking about taking on a Tig welder project AC/DC 200A. I am pretty good with the primary/mains side its just the high power side I have a little trouble wrapping my head around.
I assume a full bridge is used to switch to square wave AC but how do you run just DC then... run half the bridge 100%? wouldn't that cause heat dissipation problems? by pass the whole thing with big SCR... would that even work?
Anybody know how commercial units do this?
The IBGTs I have available to me for the bridge are some solid 400A 600V 2400W units.
I dont have very much experience with high power electronics and I have a question about Tig welders. I'm thinking about taking on a Tig welder project AC/DC 200A. I am pretty good with the primary/mains side its just the high power side I have a little trouble wrapping my head around.
I assume a full bridge is used to switch to square wave AC but how do you run just DC then... run half the bridge 100%? wouldn't that cause heat dissipation problems? by pass the whole thing with big SCR... would that even work?
Anybody know how commercial units do this?
The IBGTs I have available to me for the bridge are some solid 400A 600V 2400W units.