[keen101]

Thanks for the reply!

Yeah, so this is mostly just a proof of concept design. And even though it's still an early design with many opportunities for improvements, and bugs to be worked out... I estimate that even in low production that each one can be made for about ~$50, which is about half of what the victors/jaguars cost. So, if anyone want to make a summer robot, or participate in the annual SparkFun Electronics autonomous vehicle competition, then making your own PWM h-bridges might be the way to go.

In larger quantities it could probably become even cheaper. And this design uses all through hole parts. Im pretty happy that it fit's within a 3" x 3" square.... if someone made a surface mount version you could either fit more features, or make a smaller one.

I got the mosfets really cheap in a surprise box from Electronic Goldmine. And, got 4 free samples of the HIP4081A chips from Intersil. The rest of the parts were just scrounged.

Anyway, it's an idea to throw around. And, im happy with the results from this experiment so far.