The detecting circuit of power line touching of the suspension system of DC long-distance reserve power supply of PHS Cell Station was designed by the characteristic of gaseous discharge tube.

利用气体放电管的特性，实现了小灵通基站后备直流远供电源悬浮系统动力线碰触的检测；电路结构简单，实用性强。

Based on AT89C51 micro-controller, this paper describes the design of hardware and software of multi-parameter measurement instrument of DC remote reserve power supply module of PAS cell station.

介绍了以AT 89 C 51单片机为基础的小灵通基站直流远供电源模块综合参数检测仪的硬件和软件的设计。

In power system, the application of reserve power source automatic connection devices increases the reliability of power supply.

在电力系统中，备用电源自动投入装置的应用，提高了供电可靠性。

A small wall transformer (wall wart) type power supply is NOT up to the task. You need lots of good clean power and plenty of reserve for the musical peaks.

一个普通的变压器是不能满足任务的，你需要一些更纯净而又能提供在爆棚时提供强大能源的电源。