There are very inexpensive 600amp IGBT modules available used.
I've built a motor controller using them. However, i've blown up a lot of the IGBT modules from voltage spikes, which seem to occur when I accelerate heavily and then lift. This was years ago, but I'm probably going to dig out my controller and work on it again.
It would be great to have it be duplicated so others can have a cheap controller. I've seen paul's controller, but I'm wanting more power, and the IGBT's are cheaper and easier from what I can tell.
Anyone interested? Or if you have links to existing designs WITH DETAILs,
because it is the DETAILS that make the difference between blowing up the IGBTs and having them survive.
