I'm working on building an electric bike... well, doing the research for it anyway.
Right now I'm thinking about motor controllers - which are pretty expensive to buy already built.
My thought is that I could just build my own. I'm just not sure if I could use the same schematics for an h-bridge, but just upgrade the components to ones rated for higher voltages.
I'll be working in the 24V to 36V range if that helps at all.
In my head there's no problem with it... but then again I'm still pretty new to the electronics bit.