> If I use a resistor in series I would need a very large resistor that
could
> handle 10W..
>
> Greg

The link I posted yesterday is Part 3 of a series. Use the "Stepping
Motors" link at the top of that page to get to the index for the whole
series. Part 4 covers Current Limiting

http://www.cs.uiowa.edu/~jones/step/current.html

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