此外，新型户外电源的出现为运营商低成本快速建设网络提供了新的思路。
In addition, the emergence of outdoor power systems provides a new way for the operators to cut cost and rapidly construct networks.
介绍了一种适用于户外电网远程监测监控的不间断高频开关电源，设计了一种简易可靠的110V/2 2 0V自动切换电路，以满足宽范围电压输入要求。
A novel high frequency switch power supply, which is suitable for power network outside, is introduced in this paper, and a automation switching circuit for 110V/220V input voltage has been designed.
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