Peter Moreton writes:

> why not just use an H-bridge IC? there are many to choose from, and they
> implement a lot of safety fetaures such as overcurrent limit, over temp
> limit etc. I use the Infineon TLE4207G at the moment. Works great.

I don't have anything against a dedicated H-bridge (that would be my
preferred solution) it's just that I've been having some difficulties
finding one at reasonable prices in hobbyist quantities.  The device
you mention is not available through either mouser or digikey, which
puts it at a disadvantage.

My needs are not that demanding.  I'm only looking to control perhaps
1-2A @ 12-24V and I don't need any stellar PWM frequencies.  If anyone
can recomend such a device that is reasonably priced and more
important easily available, I'm wide open to suggestions there as
well.

-p.
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