ＵＰＳ电源作为一门集微电子技术、自动控制技术于一体的新兴技术，已得到非常广泛的使用。特别是随着计算机的普及，ＵＰＳ电源更是进入到千家万户。但是，大多数用户对ＵＰＳ电源的了解并不深入，因此，在选购及使用方面还存在不少问题。针对这种状况，笔者从ＵＰＳ电源的选 UPS power as a set of microelectronics technology, automatic control technology in one emerging technology, has been very widely used. Especially with the popularity of the computer, UPS power is into every household. However, most users do not have a deep understanding of the UPS power supply, so there are still many problems in the purchase and use. In view of this situation, I choose from the UPS power supply