AC Brushless Motors. AC brushless motors use the induction of a rotating magnetic field in the stator to carefully turn the rotor and stator at the same rate. Like DC motors, these are permanent-magnet synchronous motors, or PMSMs, that 
trust magnets included in the rotor.
In a Brushless Ac Motor china brushed DC motor, the rotor spins 180-degrees when a power 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 charges the electromagnets in the stator to rotate the rotor a complete 360-degrees.