Soft-Switching Bridgeless Buck PFC With Low THD

被引：5
|
作者：
Khalili, Ramin [1 ]
Adib, Ehsan [1 ]
机构：
[1] Isfahan Univ Technol, Dept Elect & Comp Engn, Esfahan 8415683111, Iran
来源：
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS | 2023年 / 70卷 / 12期
关键词：
Bridgeless buck converter; dead angle; discontinuous capacitor voltage mode (DCVM); discontin-uous conduction mode (DCM); power factor correction (PFC); soft switching; total harmonic distortion (THD); HIGH-POWER-FACTOR; CONVERTER;
D O I：
10.1109/TIE.2023.3239860
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
In this article, a modified soft-switching bridg- eless buck converter is introduced. In the proposed converter, input current dead angle is eliminated by applying a simple auxiliary circuit. In addition, by operating under discontinuous capacitor mode and discontinuous capacitor voltage mode conditions, high efficiency and low total harmonic distortion (THD) are achieved for a wide range of load variation. The proposed converter is analyzed, and design considerations are discussed. A prototype converter is implemented. The efficiency of 93.7% and the THD of 4.3% are achieved using low-cost insulated gate bipolar transistor switches and diodes for the output voltage of 24 V. The proposed converter is controlled by a simple pulsewidth modulation controller.
引用
收藏
页码：12211 / 12218
页数：8
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