what is a brushless motor

[nitro syco]

what is a brushless motor

[Combatcm]

Wow, this is going to be a little confusing. As you know, they don't have brushes. On brushed motor, the voltage goes "inside" the motor and provides electricity to the commutator to magnetize the armature in such a way that it "pushes" the armature in one direction because of the repelling force of magnets, such as when 2 magnets force each other away. By "pusing" the armature, it rotates. With brushless, as opposed to putting the voltage inside the motor (the armature), it magnetizes the actual can by switching the voltage to make the magnetic armature repel in a circular motion and spin the shaft.

Next question, why is the sky blue?

[glassdoctor]

Basicly, because the elements in the atmosphere filter out all the other colors in the light spectrum, so what we see is blue. Oh, were you just kiddin? ;)


Think of brushless motors as having "electronic" commutation rather than "mechanical" commutation. (brush and comm)

[kufman]

Here is a cool animation that shows a brushless motor in action.

http://www.servomag.com/flash/4-pole/smi-motor007.htm

kind of hard to follow at that speed though. Use the buttons that say "step through animation"

There is also a 2-pole model

http://www.servomag.com/flash/2-pole/2pole-bldc-motor.html

They are both sensored setups.

[nitro syco]

thanks for the help