Power inverter design for a welding machine

Why black magic of course, as with all resonant circuits.

You hit the switch when a resonant circuit is doing something special (like having little voltage across your transistors).

Transformers don't pass DC, and presumably you are considering a design where a ferrite transformer of some description gets woven into the circuit. You need a rectifier for that.

Tim

-- "Librarians are hiding something." - Steven Colbert Website @

I am going to use a laminated core transformer, because I already have one, that's why I want the circuit to work at low frequency, for now.

quoted text -

Tim

Are you using any king of circuit simulator for your designs?

Yep- Reality 1.2. Complete with Magic Smoke Generator (MSG) and new, improved interactive electric shock interface. The software is free, but you have to pay for your own hardware (including the MSG refills).

Tim

-- "Librarians are hiding something." - Steven Colbert Website @

Good, if you didn't have any, I would have suggested LT Spice, it's free and it seems to do the job. It showed me many of my mistakes.