一种宽电压输入的开关机电路设计

Design of a Switch Circuit with Wide Voltage Input

阐述软硬联合设计的单键开关机电路,采用硬件开机、软件关机、软件死机后可以长按开关键进行强制关机,通过短按硬件开机的时间、短按软件关机的时间、长按硬件关机的时间解决开关机控制。

This paper expounds the single key on-off circuit designed by the combination of software and hardware,which adopts hardware startup,software shutdown,and long press the on key for forced shutdown after software crash.The on-off control is solved by short press of hardware startup time,short press of software shutdown time,and long press of hardware shutdown time.