trifilar coils?

[jkrienert]

heres a random idea i had, that has probably been done in some form.
I have looked around on the web to no avail.

I am wondering if it would increase the effeciency when compared to something like this-
http://www.instructables.com/id/Contactless-dynamo-powering-bike-safety-lights/

The n-s hard drive magnet would be moving linearly in the drawing, and would be part of a chain.

Both are dynamos for a bicycle.
Cheers!
J

[artv]

Hi J,.....your connections are wrong...I've been testing with bi-filar windings....around a standard coil...I've tried bi-filar, tri- filar ,.Quad, Hex ...........the list goes on and on.....but that drawing won't work...sorry just the way I see it....artv

[jkrienert]

would it work if the core was a U bar?

[ghurd]

would it work if the core was a U bar?

Yes.  I think.
But it would need to be like 5-phase or it would cog like a mule.
G-