Newsgroups: comp.robotics
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From: calvin@netcom.com (John Calvin)
Subject: Encoders: TTL to Differential conversion <Q>
Message-ID: <calvinCw3pqo.LCt@netcom.com>
Summary:  Enccoders differential to TTL methods. 
Keywords:  TTL -> Differential Encoders 
Organization: NETCOM On-line Communication Services (408 261-4700 guest)
X-Newsreader: TIN [version 1.2 PL1]
Date: Wed, 14 Sep 1994 03:59:12 GMT
Lines: 14


Greetings:
Ive recently embarked on a small servo stage control project, and Im trying
to figure out the best and easiest way to handle TTL encoder (A&B Incremental)
which needs to feed into a differential input on the controller. A guy at work
said just to tie the `A and `B and `C to Vcc and not worry about them, but
its not working.  I get at most 1 count but no more than that.  I know there
are dedicated IC's which can do this conversion, but this is a holdout as a
last resort.  Has anybody ever done this in the way described.  I'd be inter-
ested in hearing the details on it if so.
Cheers.

John Calvin
Calvin@netcom.com
