Subject:
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Re: RCX Currnet Rating?
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Newsgroups:
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lugnet.robotics.rcx
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Date:
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Sun, 5 Sep 1999 21:07:52 GMT
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Viewed:
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1349 times
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The best way to avoid high current running thru the brick is to control a small
red motor which drives one of the polarity switches which is hooked up to a
battery pack and that in turn runs the main motors. We had this problem at the
LEGO Robogladiators at the E3 convention. Check out Dan Danknick's page for
more
info on the Robogladiators.
http://www.teamdelta.com/roboglad/
Peter
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Message has 2 Replies:
 | | Re: RCX Currnet Rating?
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| You mean you use the red motor/switch combination as a sort of 'electronic' fuse? Oh, right. While I'm typing I suddenly see what you mean. You use an external power supply for the motors. Clever. Isn't the switching a little slow using the (...) (25 years ago, 5-Sep-99, to lugnet.robotics.rcx)
| | | Re: RCX Currnet Rating?: And info on Internals??
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| I'm still not clear on exactly what the RCX enternal-power input will accept. Can anyone tell us what the internals really are?? If I view the RCX power connector closely, I read: 9-12V~ (nine dash one two Vee tilde) I would interpret that to mean: (...) (25 years ago, 12-Sep-99, to lugnet.robotics.rcx)
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Message is in Reply To:
| | Re: RCX Currnet Rating?
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| MJ, The RCX itself does not need a lot of power. However, if you're going to run 2 motors off each output port (a total of 6), 200 mA won't be enough. I expect the motors to draw at least 100 mA each. Even more when stalled. Maximum power to be (...) (25 years ago, 5-Sep-99, to lugnet.robotics.rcx)
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