AC Brushless Motors. AC brushless Brushless Ac Motor 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 included in the rotor.

In a brushed DC engine, the rotor spins 180-degrees when a power current is run to the armature. … In brushless DC motors, the permanent 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 360-degrees.