Basic concepts of the brushless motor

Brush motor: also known as DC motor or carbon brush motor, it is the oldest motortype and the most numerous motor type by far. When the motor is working, thecoil and commutator rotate, while the magnetic steel and carbon brush do notrotate. The alternating change of the direction of the coil current iscompleted by the commutator and brush rotating of the motor. This kind of motorhas the advantages of relatively low cost, high torque, simple structure andeasy maintenance.