Subject:
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Max amps via modified HandyBoard motor source
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Newsgroups:
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lugnet.robotics.handyboard
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Date:
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Tue, 27 Feb 2001 22:41:43 GMT
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Viewed:
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573 times
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Hi all:
I've modified the HandyBoard by cutting the PCB trace as detailed at
http://www.handyboard.com/mods/hbmcut.html, and I have a couple of questions
before I destroy something.
I'm connecting two 1500mAh 7.2V NiCd batteries in series to the 4-pin motor
power header, and I'll be driving two 12-24V motors that draw 0.8A (stalled)
at 14.4V. Assuming there's a peak current pull of ~3A total, which the
NiCds will easily source, will the power trace on the HandyBoard hold up?
What about a continuous 1.5A current pull from the motors? I mean
'continuous' to be 10-20 minutes, or until the batteries are dead.
What's the theoretical current limit that could be fed through the external
power source connectors? 3A? 4A? The 16awg wire I use is probably only
good to 5A anyway, but I'd be surprised if the wire was the limiting agent.
Thanks for any insight,
--
William Sitch, B.E.Eng. (1999) Carleton University
OCIECE Master of Engineering Candidate
work: (613)763-4423, rez: (613)688-2300x3274
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