PWM Disco Ball
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Uploaded by BenjaminNelson on Dec 28, 2011
http://300mpg.org/
Demonstration of a PWM (Pulse Width Modulation) motor controller to both adjust the brightness of an LED light and control the speed of a DC motor. Shows practical uses for PWM theory.
A bigger version of one of these could power an electric car.
If you would like to build a dimmer/motor controller similar to the one I did, please see the tutorial at:
http://www.dprg.org/tutorials/2005-11a/index.html
Thank you to Rick Bickle and the Dallas Personal Robotics Group for providing such excellent tutorials.
If you want to learn how to build a full-size Electric Car Motor Controller, check out Paul Holmes presentation from this summer's Mother Earth News Fair:
http://www.youtube.com/watch?v=G-3gVoSrcm0
For the blog entry this video goes with, visit: http://300mpg.org/2011/12/pwm-disco-ball-lights-music-and-electric-cars/
- 16 likes, 0 dislikes
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Uploader Comments (BenjaminNelson)
All Comments (8)
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Oh my god, words cannot describe how happy I am I found this channel.
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I'd need to move to California first.
My goal is to build a 3 phase AC inverter/controller for an induction motor. I'm still collecting info on the best setup. When I was just out of high school, I built a small 60 hz inverter to run an open reel tape deck in my car. It was basically a frequency generator connected to an audio amplifier, and ran it's output through a step up transformer for 110 VAC. I'm thinking the amplifier route is the way to go. Any tips?
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@DrFruikenstein You can be the governor of California.
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I'd confuse everyone with trying to explain that to people, but I understand it perfectly. Between you, MPaulHolmes (with that 1000 amp controller), and John Wayland (with his White Zombie), the 3 of you will take over the world.
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Search YouTube for "pulse motors". These motors can be very fun, a YouTube User "lidmotor" has made great motors and other fun electrical projects.
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Nice tutorial, Thanks Ben
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Ben, your explanations are so clear. And your video quality is so professional.
MPaulHolmes 2 months ago
@MPaulHolmes
Thanks Paul, but my PWM controller bows before yours and begs for mercy! Make sure you get some good video when you post your 1000-amp controller!
BenjaminNelson 2 months ago