Chris Emerson wrote:
> I want to occasionally control a ~1.5V DC motor from
> a PIC circuit running from 3V.
...
> It's a small pager motor, taking about 10mA...


Why not just "DAC" of few resistors as current source?

Efficiency wouldn't be much worse compared to the switching
coils variant at these conditions, if would at all.

Anyway, if the motor datasheet has nothing about motor
PWM-ing: do not PWM it.

Mike.

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