传统的可调整线性电源在输出电压低时，电源的大部分额定功率耗费在电源内部，变换效率很低，而且体积庞大笨重。

At low output voltage, the majority of the rated power of traditional adjustable linear power supply is wasted in the internal power supply and the conversion efficiency is low with huge volume.

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对变换器中的主变压器和输出电感进行集成，得到高效率、高功率密度的有源箝位正激变换器。

By integrating the main transformer and output inductor with magnetics integration technique, an ACFC with high efficiency and high power density was obtained.

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软开关技术能够有效改善功率开关管的工作环境，降低开关损耗，提高变换器的效率。

Soft switching technique could improve the circumstance of the power switch, reduce the losses and increase the efficiency of the converter.

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