From the monthly archives:

April 2011

PWM DC Motor Controller / LED Dimmer

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 [...]

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Test Driving the Leaf!

April 20, 2011

Sorry, but it was not I who got to go for a ride in the Leaf lately. Unfortunately, the Middle-West of the United States seems to get electric vehicles long after the coasts do. However, I noticed that Robert Llewellyn just posted a YouTube video of himself driving the Leaf out to meet some new [...]

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Free EV! The Dumpster Scooter

April 20, 2011

A couple days ago, I was taking out some garbage at work. Lo and behold! What’s this on top of everything else in the dumpster? A small electric scooter! Electric vehicles are so simple and reliable that there really are very few things that go wrong with them. I’ve seen a lot of scooters and [...]

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Latest Leaf TV Commercial!

April 16, 2011

Here it is folks! The latest television commercial for the Nissan Leaf. The ad barely even shows the car. Instead, it points out the importance of a car that uses ZERO gasoline. Bookmark on Delicious Digg this post Recommend on Facebook Buzz it up Share on Linkedin Share via MySpace share via Reddit Share with [...]

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World’s Simplest PWM Motor Controller

April 16, 2011

Well, I did it! Knowing nearly nothing about electronics, I managed to finally build my own PWM (Pulse-Width-Modulation) DC Electric Motor Controller! OK, that makes it sound way too fancy. At the beginning of the semester, I signed up for a non-credit electronics class at the local two-year technical college. I’ve been wanting to take [...]

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