开机自复位安全电源的设计

Safe Power Design of Auto-reset When Startup

介绍了一种能应用于各种电子实验系统的电源方案。通过在普通电源的基础上应用CD4069的两个非门实现了电路高低电压的自由转换及自锁。利用此方案的开机自复位电源能够让开机初始输出电压始终保持在5V的安全电压范围内,同时也可提供5￣15V的工作电压,以确保实验的顺利开展,有效预防电子类实验系统的电源安全性问题。

The paper introduces a power scheme applied to all the electronic experiment system which achieves free conversion and self-locking by using two non-CD4069 doors on the basis of general power. The auto-reset power designed by this scheme can ensure the initial output voltage to remain 5V, which is in the safe voltage range. Meanwhile, it provides the operating voltage from 5V to 15V in order to ensure the smooth experiment process, effectively prevents the power security problems of electronic experiment system.