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Electric-machinery
- 1.用单片机产生的连续可调的PWM波控制直流电机的转速。2.实现四相四拍和四相八拍的切换;速度可以改变;能够实现正转和反转的切换。-1 microcontroller with continuous adjustable PWM wave to control the speed of DC motor. 2 to achieve the four phase four and four phase eight step switching speed can be changed swit