1、 What is a brushless DC motor? A brushless DC motor consists of a motor body and a driver, and a brushless motor is a typical mechatronics product. Due to the fact that brushless DC motors operate in a self controlled manner, they do not add additional starting windings to the rotor like synchronous motors that start with heavy loads under variable frequency speed regulation. Brushless motors also do not experience oscillations and out of step during sudden load changes. Brushless motors are used as permanent magnets for small and medium-sized brushless DC motors. Brushless motors now mostly use high magnetic energy product rare earth neodymium iron boron (Nd Fe B) materials. Therefore, the volume of rare earth permanent magnet brushless motors is reduced by one frame number compared to three-phase asynchronous motors of the same capacity. 2、 On the structure analysis of brushless motors, there are similarities between brushless motors and brushless motors. Brushless motors also have rotors and stators, while brushless motors have the opposite structure to brushless motors; The rotor of a brushless motor is a coil winding, and the brushless motor is connected to the power output shaft. The stator of the brushless motor is made of permanent magnet steel; The rotor of a brushless motor is made of permanent magnet steel, which is connected to the output shaft along with the casing. The stator of the brushless motor is a winding coil, and the brushless motor removes the commutating brush used by the brushless motor to alternately transform the electromagnetic field. Therefore, the brushless motor is called a Brushlessmotor.

3、 The operating principle of a brushless motor. In simple terms, a brushless motor relies on changing the alternating frequency and waveform of the current wave input to the stator coil of the brushless motor. The brushless motor forms a magnetic field around the winding coil that rotates around the geometric axis of the motor. The magnetic field of the brushless motor drives the permanent magnet steel on the rotor to rotate, and the brushless motor rotates. The performance of the brushless motor and the quantity of magnetic steel The magnetic flux strength of the magnetic steel and the input voltage of the motor are related to other factors, and the control performance of the brushless motor is closely related to it. Because the input of the brushless motor is direct current, the current of the brushless motor needs to be converted into 3 alternating currents by an electronic governor. The brushless motor also needs to receive control signals from the remote control receiver, and the brushless motor controls the speed of the motor to meet the needs of model use. Overall, the structure of brushless motors is relatively simple. It is the brushless electronic governor that truly determines the performance of brushless motors. A good electronic governor for brushless motors requires overall control of processes such as microcontroller control program design, circuit design, and complex processing technology. Therefore, the price of brushless motors is much higher than that of brushless motors.