The principle of main circuit and control circuit is also discussed in this paper.
并介绍其主电路和控制电路原理。
The filter takes the main current as a controlled object. Its control circuit is simple.
该电力有源滤波器以主电流为控制对象，控制电路比较简单。
The filter takes the main current as a controlled object. Its control circuit is simple.
该电力有源滤波器以主电流为控制对象，控制电路比较简单。
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