Subject:
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Re:
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Newsgroups:
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lugnet.robotics.handyboard
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Date:
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Fri, 12 Jul 1996 04:39:00 GMT
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Original-From:
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Mike McGargle <mcgar_md@students.uwlax.#nospam#edu>
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Viewed:
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1630 times
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System User wrote:
> Go to the National website http://www.national.com/design/index.html and do a product
search on "h-bridge" they have a H-bridge that can handle 3A @ 55vdc. I don't know if it
can be piggybacked with driver transisters or not but the wonderfull part is if you
would like they will send you FREE samples (3ea at a shot, with up to 5 part numbers a
week) it could give you something to play with. They are a complete h-bridge with
drivers. All it needs is the PWM input and supply to drive up to 2 motors bi-directional
or 4 motors uni-directional. (list about $18 ea).
I love this site for tech data because you can get application notes and specs and
samples of most of the products they sell (handy for the power supplies I am building
for a mobile robot and 2 12vdc batteries)
Mike McGargle
> Could someone give me info on where I might find high-current (10-15 Amp)
> H-Bridges? I am willing to build or buy as necessary. My TIP120/125 bridge
> is working great, but the motors are drawing a bit more than these
> transistors should be handling.
> The "New" expansion board souds great! Will it be using ALL of the
> available chip-enables? I need a read-write pair for my own work, and would
> like to be able to add this expansion too, if possible.
> Thanks,
> Lyle Hazelwood (lylehaze@n-jcenter.com)
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