Bike Forums - View Single Post

12-10-12 | 08:20 PM

#5

cerewa

put our Heads Together

Joined: Jun 2003

Posts: 3,155

Likes: 1

From: southeast pennsylvania

Bikes: a mountain bike with a cargo box on the back and aero bars on the front. an old well-worn dahon folding bike

Quote:

Originally Posted by Kevin Harvey

I did know that a brushless motor was 3 phase but with what i had seen up until now was that it was 3phase but still DC(which has always had me puzzeled) -as DC for brushless motors is not stated-& as that hub motor from china (E Bay) the copper wires to motor were one single thick wire & it did state somewhere that it used AC -- thanks you two guys for for your info -

When people say "Alternating Current" they usually mean current that alternates at a specific frequency such as 60Hz. The current received by a "brushless DC" ebike motor is essentially alternating current but it doesn't have a specific frequency, and the power output from the battery is DC (so it makes sense to call it a brushless DC motor) even though the electronic controller puts out "AC" power.

Reply

0