/diy/ - Do It Yourself

>>1178375
>solid-state relays
>To be honest, you'd be better off DIYing your own transformer to go from high to low voltage
This was the original plan, pic related. But right as I'm about to pull the trigger on a complete BOM, someone listed a 200A miller inverter for $100(literally got a free torch, ground lead, stack of tungstens and torch components).

So right now I have a 200A current controlled DC supply with all the support circuitry already there. I'm only looking at a second stage to get AC now.

>bipolar design
It's my understanding that PNP transistors are hugely inferior, but at 100Hz this shouldn't be a problem right?
>With like a 40% duty cycle(10 off, 40 on, 10 off, 40 on) you can prevent shoot-through.
Thats a non-issue since I already have these IGBT gate drivers with a 10k gate resistor to prevent ringing or shorts.

>>1178378
From my research there is absolutely no gain to filter the AC into a sine wave, market value of transformer designs vs inverters(which all output square waves) would make you think unfiltered is actually better.