From the monthly archives:

June 2011

Toys as cultural markers?

June 28, 2011

I’ve often said that that we don’t have a technological problem when it comes to clean transportation, we have a cultural problem. A typical home-built electric car, running on lead-acid batteries (100-year old technology) will go 40 miles on a charge. That’s enough to meet the needs of the average American daily commute. The trouble [...]

Read the full article →

Motor Theory Lecture Video

June 24, 2011

Hey Folks, One of the YouTube video channels I subscribe to is “EVTV”, by user  marionrichard . In this weeks episode, he shows not only have a Netgain 11 High-Voltage motor works, but really gives a great lecture on electric motor theory, covering the basics of AC motors, and getting very detailed, but still completely [...]

Read the full article →

VIDEO: Build Your Own Electric Motorcycle!

June 13, 2011

Last weekend, at the Mother Earth Fair in Puyallup, Washington, I gave a presentation on how I built my own electric motorcycle. I set up a video camera to record it, and I’m sharing that here with you. This is the full presentation in entirety, including the questions and answers afterwards. Bookmark on Delicious Digg [...]

Read the full article →

VIDEO: AC Motor Controller Test!

June 13, 2011

My friend Paul is at it again! This time, he’s testing out the Open Source AC motor controller. In this video he’s testing the IGBT version of the controller. He also shows you the PCB for the MOSFET-based version. AC motors are almost exclusively what factory-built electric cars use. They are amazingly low maintenance. But, [...]

Read the full article →

VIDEO: Build Your Own Electric Car Motor Controller (Open ReVolt)

June 11, 2011

Last weekend, I had a great time at the Mother Earth Fair in Puyallup, WA. My friend Paul met me at the airport. Both he and I were presenters at the Fair. It was great to have such a fantastic audience for our presentations. Since I was already there, and had my camera handy, I [...]

Read the full article →