AC Brushless Motors. AC brushless motors utilize the induction of a rotating magnetic field in the stator to turn the rotor and stator at the same rate. Like DC motors, they are permanent-magnet synchronous motors, or PMSMs, that trust magnets built into the rotor.
In a brushed DC 
engine, the rotor spins 180-degrees when an electric current is run to the armature. … In brushless DC motors, the long term magnets are on the rotor, and the electromagnets are on the stator. A computer then fees the electromagnets in the stator to rotate the rotor a full Brushless Ac Motor china 360-degrees.