Re: Simple stepper motor question

Write to Dan Mauch and buy his smallest 3x steppercontroller using 3 L298.
Your motor can be driven by 90V and more without problems.
Ernst

-----Original Message-----
From: drew@... <drew@...>
To: CAD_CAM_EDM_DRO@onelist.com <CAD_CAM_EDM_DRO@onelist.com>
Date: 22. september 1999 01:24
Subject: [CAD_CAM_EDM_DRO] Simple stepper motor question

>From: drew@...
>
>Hi All,
>
>Given all the discussion lately about Servo systems and such,
>I hope this isn't too simple a question but I've been wanting to
>build some kind of a small simple XY platform lately and have been
>looking into stepper motors. I guess I've been using the term alot
>around the family because my daughter gave me one for my birthday.
>As luck would have it, I she picked a Minebea Astrosyn 23LQ-
>C202-01H from Jameco which is a bipolar 1.9V .75A motor. I have
>a wiring diagram and an example schematic of a driving circut
>using discreet transistors but I've been trying to find a H-bridge
>like chip which I could use instead. I want to drive the motor by
>controling the phases in software so I don't want a translator
>chip. So far about the only chip I've found which I "think" will
>work is an L293B but I'm concerned about the low motor voltage.
>From looking at the data sheets it seems that chips like the
>TI 754410 and the L298 won't work with a motor voltage of only
>1.9 volts. Is this the case with the L293B also?
>
>Any one have any suggestions on a h-bridge which will work well
>with the Minebea motor?
>
>I've found some 5V 1A Vexta unipolar motors which I will probably
>use when I actually build the platform so hopefully I won't have
>this same problem.
>
>Thanks,
>Drew
>
>
>
>>Welcome to CAD_CAM_EDM_DRO@...,an unmoderated list for the

discussion of shop built systems in the above catagories.

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>bill,
>List Manager
>