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Old 08-03-2011, 09:23 PM   #58
Luke OP
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Joined: Aug 2004
Location: Idiotville, OR
Oddometer: 4,241
Originally Posted by Stagehand View Post
Is there a way to impulse the power output? introduce some intervals in the voltage to stretch out the battery life, while not noticeable affecting power delivery?
Originally Posted by Mr. Fisherman View Post
Maybe a pulse width modulator?

That's what the controller does. Like this:

The motor is powered (connected to the batteries) for some of the time and unpowered the rest of the time. In this picture it's on for 35 microseconds and off for 25 microseconds in a repeating cycle. Increasing the amount of on time relative to the amount of off time produces more torque.
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