Improved Constant On-Time Control of Boundary Conduction Mode Boost Power Factor Correction Converter

被引：0
|
作者：
Zhou Y. [1 ]
Wu Y. [1 ]
Ren X. [1 ]
Chen Q. [1 ]
Zhang Z. [1 ]
机构：
[1] Jiangsu Key Laboratory of New Energy Generation and Power Conversion, Nanjing University of Aeronautics and Astronautics, Nanjing
来源：
Diangong Jishu Xuebao/Transactions of China Electrotechnical Society | 2021年 / 36卷 / 20期
关键词：
Boundary conduction mode (BCM); Constant on-time (COT) control; No resonance; Power factor correction (PFC); Zero-current-detection (ZCD);
D O I：
10.19595/j.cnki.1000-6753.tces.200787
中图分类号：
学科分类号：
摘要：
In order to obtain low input current total harmonic distortion (THD) of boundary conduction mode (BCM) Boost power factor correction (PFC) converter, an improved constant on-time (COT) control is proposed in this paper, and its influence on input current THD and efficiency is also analyzed. Furthermore, an improved zero-current-detection (ZCD) method is adopted to realize the early detection for ZCD signal. The influence of signal propagation delay is compensated, and the reverse resonance process is shortened or even eliminated, thereby improving the input current THD without increasing control complexity. Finally, an experimental prototype of a 160W BCM Boost PFC converter is established to verify the feasibility and effectiveness of improved COT control. © 2021, Electrical Technology Press Co. Ltd. All right reserved.
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页码：4329 / 4338
页数：9
相关论文
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