The OP on this thread may like to dig out this 'magazine' from Freescale, as 
it appears to have a fair bit of (general) stuff on motor driving, although 
it does appear to be mains powered stuff. I have put in the URL as it comes 
off the Freescale email (but without my identifier in it). I don't know how 
well this will work, and it expects you to log in to download.

If you want to try searching other ways it is Beyondbits3 that you are 
looking for. May or may not be useful for your project.

http://www.freescale.com/webapp/site_cons.newsletter_metrics.framework?newsletter_id=NL242008&type=CLICKTHROUGH&url=https%3A%2F%2Fwww.freescale.com%2Fwebapp%2FDownload%3FcolCode%3DBEYONDBITS3%26amp%3BnodeId%3D0127260061788213CF333D%26amp%3Blocation%3Dnull 

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