The brushless DC motor is composed of the motor body and the driver, which is a typical mechatronics
product.
The stator windings of the motor are mostly made into a three-phase symmetrical star connection, which is very similar to a three-phase asynchronous motor. Magnetized permanent magnets are glued to the rotor of the motor. In order to detect the polarity of the motor rotor, a position sensor is installed in the motor. The driver is composed of power electronics and integrated circuits. Its function is to receive the start, stop, and brake signals of the motor to control the start, stop and brake of the motor; to receive the position sensor signal and the forward and reverse signals to control the reverse The on and off of each power tube of the variable bridge produces continuous torque; accepts speed commands and speed feedback signals to control and adjust the speed; provide protection and display, etc.