摘要
文章介绍一种计算机软关机电路,通过模拟AT扩展(AT extended,ATX)电源信号和对AT电源输入端进行延时控制,实现类似于ATX计算机软关机的关机功能,通过一键操作,即可正常退出操作系统,又可断开机器电源。
Embedded computer with AT power supply is frequently used in the industial and militray field. This article introduces a design of power off circuit. The circuit is a realization of power switch by simulating ATX power signal and delaying the time to turn off AT power supply. By this circuit a single power off op- eration can both turn off the operation system and shut down the machine Dower.
出处
《信息化研究》
2013年第1期61-65,共5页
INFORMATIZATION RESEARCH
