Hej Katinka Mills. Tack f=F6r ditt meddelande 17:35 2002-08-06 enligt nedan: >> Here is a search result URL for the info, not sure which link contains= the >> thesis, but the few things I have picked out like the controller chip= from >> motorola (MC330033) looks good. >> >> http://www.google.com/u/uqitee?q=3Dmotor%20controller Interesting thingy :) One thing i noted, was that is is possible to configure for 2-phase motors. One customer have need for low rpm high torque low inertia compact driver,= so a conventional 200 step/rev stepper and this unit. Now... problem is mounting the hall sensors that close and inside...= impossible! But... maybe an optical decoder on the shaft... if i can get hands on one= with suitable resolution and phase angle. (I suggested an air motor with planet gear - whis is probably much less= expensive than paying me to play with this, but...) >Us EE's have nothing better to do than converse at 00:34, I know... 01:10 here...=20 > here is the URL I >was looking for : > > http://celab21.pc.elec.uq.edu.au/~beef/thesis2.PDF Later... Thank you :) /Morgan -- http://www.piclist.com hint: The list server can filter out subtopics (like ads or off topics) for you. See http://www.piclist.com/#topics