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In lugnet.robotics.rcx, "Elizabeth Mabrey" <emabrey@storming-robots.com> wrote:
>
> Hi
>
> I am curious how the power levels are being implemented. I am not talking
> about the icon level navigation. How the motor actually adjusts to the
> different levels setting? Gear slipping?
PWM--Pulse Width Modulation. Basically, during a cycle, power is turned on and
off. The lengh of time the power is on is the pulse width. Longer pulse widths
corispond to higher power levels. This cycling is supposed to happens fast
enought that the motor "sees" an an "average" value.
If you stall a motor that is set to power level 1, you can feel it twitch as the
power cycles.
Cheers,
Tom
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