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PICList
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'[OT] Stepper motor drivers'
1999\05\05@101946
by
Lawrence Lile
I'm researching some stepper motor drivers. Specifically I'm looking into
chips that might lend themselves to microstepping - i.e. some kind of
current control. The motors I'm using have a max. current of about 1 Amp.
So far I keep coming up with stuff like the ol' '293 or the LMD18200 that
have an Oh So HAndy (sarcasm intended) current output. Taking this analog
signal and amplifying it and a.d'ing it might cost more than the motor
controller did in the first place! I'm trying to stay away from a/d inputs
on my PIC, just a cheap digital part.
I'm looking for parts that have a 4 bit current limit input. I'm also
wanting to know which parts people have found to be cost effective in the
past. Any ideas?
1999\05\07@132226
by
Lawrence Lile
1999\05\07@151327
by
Eric Schlaepfer
1999\05\08@063125
by
Tom Handley
1999\05\08@213113
by
Wagner Lipnharski
I really don't know what happens when somebody says that can't find some
website on the net, as the Allegro example. Yahoo, Altavista, HotBot,
Infoseek and others search sites have plenty of information about those
companies. For example, Allegro is the second on the list when searching
Altavista with the argument "Allegro + Semiconductors"... Internet
looks like as a huge library, not knowing how to use a search engine is
the same as entering a library in a complete dark, some how loosing 99%
of what the web offers.
Wagner
1999\05\08@214353
by
David Olson
A trick I've used to see if there are, let's say, vendors for "Hall Sensors"
is to go to Arrow's site: http://www.arrow.com and do their Line Card search. They
have a huge list of categories that can be further refined into the various
manufacturers/suppliers.
For instance:
"Hall Sensors" gets you: "Allegro"
I've found a bunch of manufactures like Allegro and Temic by this method.
Arrow is also nice enough to have URLs with most of the companies.
-DO
> {Original Message removed}
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