基于AVR单片机控制的直流无刷电机,主要完成位置传感器信号的采集,电动机换相信号的输出,电动机转速的测量,以及数字PWM调速信号的输出,电流的采集等功能。并通过软件编程实现速度的PI调节,构成电动机转速闭环控制系统-Brushless DC motor based on AVR single chip microcomputer control,Mainly completes the position sensor signal acquisition, the motor commutation signal output, the motor rotational speed measurement, as well as the digital PWM speed regulation signal output, the current collection and so on the function. And through the software programming to achieve the speed of PI regulation, constitute the motor speed closed-loop control system