这是用Matlab编写的滑模变结构控制的PWM的例子，可以运行-This is prepared using Matlab Sliding Mode Variable Structure Control of PWM example, you can run

PWM控制LED灯渐亮渐灭实验,利用定时器控制产生占空比可变的 PWM 波-PWM control of LED lights getting brighter gradually eliminate experiments, the use of a timer to control the wave of variable duty cycle PWM