文章对一种只检测交流输入电压而不需要检测输出直流电压的简化单相pfc变换器进行了理论分析和研究。

It theoretically analyzed and studied a simple DC voltage sensorless single APFC converter by detecting an AC line voltage in the paper.

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电力变换器主电路部（3），其根据该脉冲宽度调制波对 开关元件进行驱动，将直流电压转换为三相交流电压；

A power converter circuit (3) drives a switching device by the pulse-width modulated wave for converting a direct current into the three phase alternating current.

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DC/DC电源变换器是能将一种直流电压变换成另外一种或几种直流电压的高效供电装置。

The DC/DC power converter is a high effective source device that can convert the DC voltage from one type to other type or several types.

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