A novel single stage AC/DC converter based on boundary conduction mode Buck-Boost circuit

被引：0
|
作者：
Xie Y.-X. [1 ]
Hu J.-W. [1 ]
机构：
[1] School of Electric Power, South China University of Technology, Guangzhou
来源：
Dianji yu Kongzhi Xuebao/Electric Machines and Control | 2021年 / 25卷 / 01期
关键词：
Boundary conduction mode; Buck-Boost; LLC; Magnetic integration; Single-stage;
D O I：
10.15938/j.emc.2021.01.007
中图分类号：
学科分类号：
摘要：
Aiming at the excessive number of magnetic components in the PFC unit of the existing single-stage AC-DC converter with high voltage input, a single-stage AC-DC converter was proposed based on boundary conductionmode Buck-Boost and LLC resonant circuits. The proposed converter is of the function of power factor correction, and it not only retains the excellent characteristics of LLC resonant circuit soft switching, but also realizes the magnetic integration, switch tube integration. Based on the detailed analysis of the working principle of the proposed converter, a 100 W prototype was built. The power factor value is 0.974, the total harmonic distortion is 17%, and the efficiency is 90.6% under the rated working condition. The obtained results verify the proposed converter's performance of excellent characteristics. © 2021, Harbin University of Science and Technology Publication. All right reserved.
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页码：59 / 67
页数：8
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