[TriEmbed] Finally found the writeup for an HDD spindle motor coater.

[Collin Ladd]

Finally found the paper outlining the specs, build and comparison to a
"real" spin coater.

http://www.sciencedirect.com/science/article/pii/S0300944006001068

See attached if there is a paywall.

So they refer to using a PIC ... and not much besides that they imply* a*
motor control IC (which?!). The group is Brazillian and they don't give any
supporting info. Great. Might still try to reach out to them.

Any puzzle solvers are welcome to try to discern what motor IC that block
diagram comes from. I'm banking Pete's donation will come through though...
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