Build a UPS for Mini PC

Common Mini PCs such as Raspberry Pi, Latte Panda, or various ARM core-based development

boards are widely used for various projects. In some projects, the mini PC may be part of a small

server or security monitoring system. For such applications, the unexpected power outage of the

power grid may cause the failure of the whole network. The Traditional UPS solution is large and

cumbersome, and the cost is relatively high. However, many commercial power bank cannot charge

(5V IN) the battery while discharge (5V OUT) at the same time. Also, they cannot power all 12V

devices (such as routers, DTUs, security cameras). Thus they are not suitable as a UPS in these

applications. With this module, a small UPS can be built. When the external power supply is

interrupted unexpectedly, the module automatically switches to the battery power supply to provide

continuous power supply to the system to avoid power failure.