Subject:
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excessive motor current?
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Newsgroups:
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lugnet.robotics.handyboard
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Date:
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Mon, 29 Apr 1996 02:24:34 GMT
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Original-From:
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Jeff Keyzer <jkeyzer@calweb.AVOIDSPAMcom>
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Viewed:
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1810 times
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I just managed to convert a Cat D10 toy into a robot. In doing so,
I've converted the power source for its motors from Alkaline to NiCads. One
thing I've noticed is that the NiCads make the robot seem A LOT more
powerful. I measured the current going through the motors, and sure enough,
it's a bit more than with the alkalines, due to internal resistance, I
assume? The motors seem pretty happy when the robot is running around, but
when they manage to get stalled, they each draw something like 1.5 amps!
This is a pretty large amount of current for them. I'm curious as to what
the risks of damaging the motors are if they end up stalled for a prolonged
amount of time... If the risks are rather high, then does anyone know of a
good way to protect them from this high stall current? Perhaps a sensor
arrangement for the handy board?
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