Most of audio players on the market use the hardware filter Abstract. As one kind of special motor, Brushless DC motor has characteristics of high efficiency, simple control, wide application range and others. The traditional brushless DC motor adopts square wave control, which cannot meet the noise requirements in some application fields. In this paper, a vector control system of brushless motor based on Hall sensor is introduced, and the system structure is introduced from the hardware and software of the system. The experimental results show that the vector control system introduced in this paper can greatly improve the efficiency and reduce the operation noise.
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