On Wed, 7 Aug 2002 00:14, you wrote: > On Tue, 6 Aug 2002 23:57, you wrote: > > On Wed, 7 Aug 2002 00:35, you wrote: > > > Must be complicated if using PWM at the same time. Current sensing > > > each phase too? Think Variable Frequency drives do so. > > > > > > /Morgan > > > > Hi all, > > > > I will have a URL I hope soon to post for a PhD thesis on a motor > > controller designed for 3phase brushless DC motor control, IIRC the paper > > discused a design for a 120Vdc system and has been used in a number of > > solar cars. I am hoping to improve on it using an AVR (ATMega128) as it > > does high speed PWM. > > > > Will pass URL on when it arrives :o) > > > > Regards, > > > > Kat. > > 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=motor%20controller > > Regards, > > Kat. Us EE's have nothing better to do than converse at 00:34, here is the URL I was looking for : http://celab21.pc.elec.uq.edu.au/~beef/thesis2.PDF Regards, Kat. -- -------------------------------------------------------------------------------------------- K.A.Q. Electronics Software and Electronic Engineering Perth, Western Australia Phone +61 (0) 419 923 731 -------------------------------------------------------------------------------------------- -- 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