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介绍了零电压过渡有源功率因数校正电路（ＰＦＣ）的工作原理，并对电路参数的选择方法进行了讨论，在此基础上，研制了一台１．５ｋＷ实验装置。与硬开关ＰＦＣ电源相比，该电源具有损耗低、效率高、开关噪声小等优点。
The working principle of zero voltage transition active power factor correction circuit (PFC) is introduced, and the selection of circuit parameters is discussed. On the basis of this, a 1.5kW experimental device is developed. Compared with the hard switching PFC power supply, the power supply has the advantages of low loss, high efficiency, low switching noise.