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Subject: Re: Hard drive motor question
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NNTP-Posting-Date: Sat, 19 Oct 2002 13:27:24 EDT
Date: Sat, 19 Oct 2002 18:39:01 -0400
Here's the location of the data sheet:
This one is pretty representative of Philips' other similar chips. The
small schematic in the data sheet definately gives the impression that aside
from a few cap's, not much else is needed to run these motors. No sensors
are needed here......the ST data sheets and other similar ones DO indicate
that Hall effect sensors are needed.....but I would prefer to stay away from
these methods which seem to over-complicate the situation.
I'm not sure though, how run speed (rpm) is determined. Not that it is a
big deal to me, but I'd be interested to know if speed can be adjusted using
this type of driver.
"Chuck Simmons" wrote in message
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