triggerhappy13

i am new to electrics and i was wondering if it would work to run a brushed motor with a brushless esc. and why do brushless motors need 3 wires?

Thanks Greg

Walt Thyng

My Feedback: (9)

Greg there are lots of discussion threads that could help you out on dedicated e-power sites (I'd recommend "Wattflyer" and it's power systems forum), but I'll take a shot at it from a flier's, not an engineer's perspective. First off NO you cannnot interchange brushed and brushless equipment. In a brushed motor the brushes and the commutator do the necessary electrical (magnetic) switching (commutating) to make the shaft rotate. In brushless motors the ESC does the switching or commutating electronically (rather than mechanically as does a brushed motor). Please bear in mind that I'm not an engineer, so I'll probably not get it just right, but a brushless motor needs three wires so that the ESC can switch them back and forth between positive and negative to do the commutating which makes the shaft turn. That's why you can simply switch any two wires in a brushless to change the motor direction.
Hope this helps,
Walt
PS welcome to the wonderful world of e-power

ron_van_sommeren

I posted some brushless motor animations and simulations in this thread, very instructive:
http://www.rcuniverse.com/forum/m_1558046/tm.htm