It's significative to communicate over existing AC main wiring in order to control and monitor electric appliance.
利用原有电力线路传送数据，以达到对用电设备进行监测、控制的目的，是一件非常有意义的事情。
The design of hardware circuit is introduced, include DC-DC main circuit, DC-DCs sample circuit, DC-AC main circuit and DC-AC's sample circuit, and so on.
本文首先给出了一个整体的设计方案及其工作原理，并介绍了各个部分硬件电路的实现，包括DC-DC主电路、DC-DC的采样与给定、DC-AC的主电路以及DC-AC的驱动与采样等。
The electronic equipment is widely applied to aircraft electric power system, so power quality problems in AC main power supply system cause more and more attention.
在飞机电气系统中，随着电力电子装置的广泛应用，交流供电系统的电能质量问题受到越来越多的关注。
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