实现功能：根据测量温度，进行PID控制加热，PWM输出。 实现单片机：stc12c5a60s2-Functions: to measure temperature, the heating of PID control, the PWM output

采用STC12C5A60S2单片机实现，PID运算，产生PWM波。实现Boost电路闭环调节。-The adoption STC12C5A60S2 SCM PID calculation, generate a PWM wave. Boost circuit closed-loop regulation.