BRUSHLESS DIRECT CURRENT MOTOR AND DRIVING UNIT THEREOF

摘要

A brushless direct current (DC) motor includes a rotor, a stator and a driving unit. The rotor includes a plurality of magnetic poles. The stator includes a plurality of upper pole arms and a plurality of lower pole arms. The driving unit includes at least two coils wound on the upper pole arms and the lower pole arms respectively, and the driving unit generates an alternating magnetic field on the stator for driving the rotor.