步进电机、直流电机PWM控制、伺服电机编码器解码vhdl程序-Stepper motor, PWM DC motor control, servo motor encoder decoder VHDL program

伺服电机的编码器本身具有精度高、分辨能力强等优点，但采用不同的测速方法获得的精度也不相同。(The encoder of the servo motor has the advantages of high precision and strong resolution, but the accuracy of using different speed measuring methods is different.)