【摘要】 随着各种类型的AC－DC功率变换器的广泛应用，所产生的网侧功率因数较低（0．6左右），谐波污染严重等问题也充分暴露出来为此，结合PFC电路的特点，文中给出一种借鉴移相较开关技术的新型PFC电路．通过对该PFC电路工作原理和电路工作过程的分析，可以看出该PFC电路可同时实现功率因数校正和进行AC－DC功率变换，是一种具有工程应用价值的单级、隔离式、软开关PFC电路，可在电镀、电解、通信等领域中获得广泛应用更多还原

【Abstract】 The problem that the power factor of fence is low and harmonic contamination is bad becomes serious with the wide application of types of AC-DC converters. To solve the problem, a novel PFC circuit which uses the reference of phase-shifted soft-switching technoogy and combine the peculiarity of PFC circuit is given. The operating principium and process of this PFC cireuit is analyzed. This PFC cireuit can rectify the powr factor and achieve the conert AC to DC. it is a single isolated sof-switching PFC cireuit which can be widely used in the field of galvanization, electroanalysis, communications, and so on.更多还原