> Hadn't thought about followers, but I like that for an interim patch...=20
> I would think this would help me recover some voltage rather than
> lose more -- the TLE5205 would drive much lower current to an
> op-amp, then have the op-amp drive high- and low-side FET's to
> drive the motor

An op-amp probably won't have enough oomph to drive a FET
hard, and you're still at the mercy of whatever is in the TLE5205
to get a decent sharp drive signal anyway. Better to have either
proper FET drivers or at least a transistor stage to really square
up the TLE output

In the same time as all that messing about, you could come up with
a good circuit using other components, particularly modern milliohm
FETs. Switchmode PWM controllers like the TL494 are still popular
for motor drives and of course just about any PIC can be made into
a very good H-bridge controller

Joe
--=20
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