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studysession
02-03-2007, 11:22 PM
Controlling a CDROM motor with a BS2

Hi - Has anyone setup a BS2 for controlling CDROM motors? By chance have a link showing how to do it?

I pulled out a brushless motor out of my CDROM drive. I want to use the BS2 for the controller.

THankshttp://forums.parallax.com/images/smilies/roll.gif

Franklin
02-04-2007, 01:35 AM
If it's a brushless DC motor I would think it would work just like any other. There are many threads on controlling motors here. It also depends on what you want to do with that "control"

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- Stephen

studysession
02-04-2007, 01:42 AM
I did some searches and was able to find great info on brushed motors and how to control them. But not how to use the BS2 controlling a brushless motor.

The brushed being 2 wire and the brushless being 3 wire. Not sure how to control it with the BS2.

Thanks

Franklin
02-04-2007, 01:57 AM
You are right, they are not as easy to control as a brused version. Here's a link that may help (or at least confuse you more)
www.ewh.ieee.org/soc/es/May2001/02/Begin.htm (http://www.ewh.ieee.org/soc/es/May2001/02/Begin.htm)

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- Stephen

Bruce Bates
02-04-2007, 02:11 AM
StudySession -

This (link below) should give you an overview of brushed vs. brushless motor controllers. I suspect you will need to use a brushless motor control chip if you want to use PBASIC and a BS-2.

http://www.siliconfareast.com/motor-controllers.htm

Regards,

Bruce Bates

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Warrlok
02-05-2007, 11:37 PM
I thought CDrom drives had stepper motors ,,,, u shure its a brushless ? you could use a R/C brushless speed controller not gonna work as good as a MC like HB-25 or the Sabrertooth,,

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studysession
02-06-2007, 04:48 AM
Yes it is brushless. I have RC brushless controllers. I really want to learn how to build one though so been trying to find stuff ont hem.
Can find things for DC and Stepper controllers but not a lot on fabricating my own brushless controller.