DIY Chopper Driver

Hello,

I bought an Arduino a couple month back and have been using it to drive stepper motors.

I want to drive them at a higher voltage and would like to make a current chopper circuit.

Does anyone have a link to a basic tutorial on this topic?

reinvent the wheel.. or http://www.ebay.com/itm/231195999805?ru=http%3A%2F%2Fwww.ebay.com%2Fsch%2Fi.html%3F_sacat%3D0%26_from%3DR40%26_nkw%3D231195999805%26_rdc%3D1

There is another current Thread about this.

In my view it is a complete waste of time unless you have ambitions to make a product to sell.

...R

Well its a learning process if nothing else. Chopper drive is current controlled buck conversion via an H-bridge and shares a lot with class-D driver (though those are voltage controlled and sometimes with feedback.