BS2 brushless motor

graffix

I found this video awhile ago.When I had a similar idea for making a generator.

http://www.youtube.com/watch?v=aBsM6LXZ2-M

Mark_T

That's not an induction motor. Induction motors use induction in a copper or aluminium rotor, not permanent magnets.

Leon

That's a brushless DC motor (BLDC motor). They need special drive techniques:

http://www.microchip.com/stellent/idcplg?IdcService=SS_GET_PAGE&nodeId=2125&param=en542235

graffix

Oh,my bad-edited
Thanks for the link Leon

LoopyByteloose

Regarding using a BS2 for a three phase brushless motor, a tokenized language such as PBASIC is a bit slow. You have to simultaneously create three sine waves that are 120 degrees out of phase with each other. That is best done in assembly language and the Propeller can easily do so.

Once you get the three sine waves properly output, you have to amplify them to provide appropriate power to the motor.

graffix

Thanks Loopy,I was wondering what the propeller could do for this project and what if any kind of usable power could be created.

Kind of like a mag lev train on a circular track.with a generator in the center of the track.My thought was it would take a certain amount of power to move the train (and cranking the generator) and use the switching speed of the MCU to increase speed enough to create more power than was being used to drive the train.

I know nothing on the topic.Its just a thought I had awhile ago and thought it would be great if it did work.Most likley not
The faster you crank a generator does it get easier?IDK