[chbot] H-Bridge (was Re: Sensor Information)

[Andrew Errington]

I actually like this design:

http://www.mcmanis.com/chuck/Robotics/tutorial/h-bridge/bjt-circuit.html

Because the opto circuit is very elegant (it combines optical isolation
with 'smoke-free' logic).  I've never built one as I was not able to find
a fast enough opto-isolator to do high-frequency PWM.   It may be that
that is a non-issue however.

Good luck with whatever design you choose.

Andrew