Quote:
Originally Posted by E-Revonut
Yes that would imply a brushed motor, until there is a way to send power wirelessly  there is no way to have an electromagnet rotor without brushes. I built larger 140mm -280mm diameter brushed motors for 5 years, it was interesting to see and know how they where built, but no money involved in manufacturing  |
sending power wireless aka Induction ...
you may find that interesting:
http://en.wikipedia.org/wiki/Induction_motor