Subject:
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Re: AC Adapter Specs?
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Newsgroups:
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lugnet.robotics
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Date:
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Mon, 25 Jan 1999 09:17:42 GMT
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Original-From:
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Laurentino Martins <lmartins@/AvoidSpam/marktest.pt>
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Viewed:
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1635 times
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At 05:41 25-01-1999 Monday , you wrote:
> Also on the controlling the motor speed. The RCX uses pulse width
> modulation to
> control the motor. When the power is set to 1 the Power will be 8 volts for
> 1ms
> and off for 7ms; Power 2 = 2ms On 6ms off, ... , Power 7 = 7ms On 1ms off,
> Power 8
> Always On.
That explains why the internal CyberMaster motors when running at speed 1 sometimes make the unit tremble fast, almost like if the motors were being turned off and on at high speed.
The effect is more noticeable when the batteries are weak and using tracks (and probably when both are synchronized).
It might have been easier for them to implement pulse modulation than other method, but definitely I don't like it.
Laurentino Martins *<||:-)
[mailto:lau@mail.telepac.pt]
[http://www.terravista.pt/Enseada/2808/]
--
Did you check the web site first?: http://www.crynwr.com/lego-robotics
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