PWM DC Motor Controller / LED Dimmer

by Ben N on April 21, 2011

Last week, I started work on a very basic DC Motor Controller.  It’s a really simple circuit that just turns voltage on and off, but very quickly (like about 1000 times a second..)

By varying the time off vs time on of the circuit, a Light Emitting Diode (LED) can be dimmed, or a DC motor can very its speed.

This week at Electronics Night, I put the potentiometer into an enclosure and rigged up multiple red LEDs AND a small DC motor. Kinda fun to have light and motor happening at the same time, dependent on just how I turn a knob!

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Design List Blog
June 16, 2011 at 10:59 pm

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1 steamy1225 May 28, 2011 at 7:57 pm

Awesome dude.

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