论文标题
单阶段PFC反式AC-DC转换器设计
Single Stage PFC Flyback AC-DC Converter Design
论文作者
论文摘要
本文讨论了100 W单阶段功率因子校正（PFC）在边界模式下使用同步MOS-FET整流器在次级侧的同步MOS-FET在时间方法上运行的反式转换器，以实现更高的效率。与传统的设计不同，使用了两个阶段方法，例如PFC加上LLC共振阶段或两个阶段PFC加上反式飞行，而拟议的设计将PFC集成了PFC和恒定的电压调节，而无需损害转换器的效率。所提出的设计是有利的，因为它具有较低的组件计数。本文展示了从通用输入AC线电压运行的100 W反激的设计。实验结果表明，功率因数（PF）大于0.92，负载从25％到100％不等的总谐波失真（ITHD）小于20％。实验结果显示了单阶段设计的优势。
This paper discusses a 100 W single stage Power Factor Correction (PFC) flyback converter operating in boundary mode constant ON time methodology using a synchronous MOS-FET rectifier on the secondary side to achieve higher efficiency. Unlike conventional designs which use two stage approach such as PFC plus a LLC resonant stage or a two stage PFC plus flyback, the proposed design integrates the PFC and constant voltage regulation in a single stage without compromising the efficiency of the converter. The proposed design is advantageous as it has a lower component count. A design of 100 W flyback operating from universal input AC line voltage is demonstrated in this paper. The experimental results show that the power factor (PF) is greater than 0.92 and total harmonic distortion (iTHD) is less than 20% for a load varying from 25 % to 100 %. The experimental results show the advantages of a single stage design.
