I. What is a brushless motor

Brushless DC motor consists of the body and drive of the motor. Brushless motor is a typical mechatronics product. Because of the brushless DC motor control operation, so brushless motor does not like synchronous motor frequency regulation, such as in the rotor plus starting winding brushless motor does not produce oscillation and step sudden change of load. Brushless motor, low power brushless DC motor permanent magnet brushless motor, now the use of rare earth NdFeB high magnetic energy product (NdFeB) material. Therefore, the rare earth permanent magnet brushless motor reduces the volume of frame size than the three-phase asynchronous motor of the same capacity.

II. The structure analysis of brushless motor

Brushless motor structure, brushless motor and brushless motor similar, brushless motor rotor and stator brushless motor brushless motor structure is exactly the opposite; rotor brushless motor connected to the coil winding brushless motor and power output shaft, permanent magnet brushless motor stator rotor magnet; brushless motor is permanent magnet, and the shell connected to the output shaft, brushless motor stator winding coil, brushless motor brushless motor reverse electric alternating selection of magnetic field, the Brushless motor is a brushless motor (brushless motor).

III. The principle of operation of brushless motor

Simple brushless motor, brushless motor by changing the frequency of the input AC current waveform and waveform of the brushless motor stator coil, brushless motor winding coil around the magnetic field to form a winding motor, geometric axis rotation brushless motor, drive the permanent magnet rotor magnetic field of the rotating motor, brushless motor turn up, the number, performance and magnetic field strength of flux, motor brushless motor input voltage, DC brushless motor with brushless motor The control performance of the brushless motor has a lot to do with the input is DC brushless motor directly brushless motor, currently need to become an electronic governor DC brushless motor a crossover point, but also need to receive control signals from the remote control, brushless motor control motor speed to meet the needs of brushless motor use. Brushless motor, brushless motor structure is relatively simple, the use of decision-making physical or brushless electronic governor performance of brushless motor, brushless motor, no overall control electronic speed control motor requires a good control program design, circuit design, complex processing, so the price of brushless motor than brush motor.