High-efficiency transformerless buck-boost DC-DC converter

被引：31
作者：
Banaei, Mohamad Reza [1 ]
Bonab, Hossein Ajdar Faeghi [1 ]
机构：
[1] Azarbaijan Shahid Madani Univ, Dept Elect Engn, Tabriz, Iran
来源：
INTERNATIONAL JOURNAL OF CIRCUIT THEORY AND APPLICATIONS | 2017年 / 45卷 / 08期
关键词：
transformerless buck-boost DC-DC converter; voltage gain; duty cycle; voltage stress and current ripple;
D O I：
10.1002/cta.2310
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
A novel high-efficiency transformerless buck-boost DC-DC converter is proposed in this paper. The presented converter voltage gain is higher than that of the conventional boost, buck-boost, CUK, SEPIC and ZETA converters, and high voltage gain can be obtained with a suitable duty cycle. The voltage stress across the power switch is low. Hence, the low on-state resistance of the power switch can be selected to decrease conduction loss of the switch and improve efficiency. The input current ripple in the presented converter is low. The principle of operation and the mathematical analyses of the proposed converter are explained. The validity of the presented converter is verified by the simulation results in PSCAD/EMTDC software and experimental results based on the prototype circuit with 250W and 40kHz. Copyright (c) 2017 John Wiley & Sons, Ltd.
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收藏
页码：1129 / 1150
页数：22
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