PWM 控制 直流电机调速程序 利用定时器控制产生占空比可变的 PWM 波 按K1，PWM值增加，则占空比减小,电机速度变慢。 按K2，PWM值减小，则占空比增加,电机速度加快。-PWM DC Motor Speed Control using Timer control procedures have variable duty cycle PWM wave by K1, PWM values increase, the duty cycle decreases, the

this a program that control fan speed of dc motor using a pic microcontroller-this is a program that control fan speed of dc motor using a pic microcontroller

双闭环直流调速系统工程设计，simulink模块搭建，4个不同模块-development of dc speed control system with double closed loops