As the frequency of the AC component increases, the DC meter response decreases, until at some frequency only the average input voltage will be displayed.

当交流分量的频率增加时，直流仪表的响应就会变得不够快，直到在某一频率时，仪表只能显示出输入电压的平均值。

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If the AC voltage at the input is large, part of this signal is rectified, producing an error in the DC signal being measured.

如果输入端的交流电压很大，其一部分信号被整流，于是在被测的直流信号中产生了误差。

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A new type of DC switch power which is possessed a DC voltage input and three DC voltage output, and is able to reach higher efficiency has been introduced in this paper.

本文介绍一种新型的直流开关电源，该电源是一种直流电压输入，三种直流电压输出，并能够达到相当高的效率。

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