View Full Version : Controlling a CDROM motor with a BS2

02-03-2007, 10:22 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.


02-04-2007, 12:35 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"

- Stephen

02-04-2007, 12:42 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.


02-04-2007, 12:57 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)

- Stephen

Bruce Bates
02-04-2007, 01:11 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.



Bruce Bates

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02-05-2007, 10:37 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,,

Problems are the "roads" of life,
solutions are only "onramps" to the next problem

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02-06-2007, 03:48 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.