| Buck+半桥LLC倍压谐振两级式DC/DC变换器 |
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| 引用本文： | 张晋玮,周东方,李建兵,郑阳勇.Buck+半桥LLC倍压谐振两级式DC/DC变换器[J].信息工程大学学报,2012,13(6):682-687,717. |
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| 作者姓名： | 张晋玮 周东方 李建兵 郑阳勇 |
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| 作者单位： | 1. 信息工程大学信息系统工程学院,河南郑州,450002
2. 65165部队,黑龙江哈尔滨,150000 |
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| 基金项目： | 国家科技重大专项资助项目 |
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| 摘 要： | 针对微波功率模块(MPM)集成电源应用,提出了一种新型的基于定频控制的Buck+半桥LLC倍压谐振两级式DC/DC变换器。阐述了两级式变换器的拓扑结构,分析了后级半桥LLC倍压谐振变换器的特性和工作原理,给出了优化设计方法。最后,制作了一台功率400W输出的样机,进行了仿真和实验验证,样机的满载效率达到了96%。
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| 关 键 词： | 定频控制 Buck 半桥LLC 倍压 两级式变换器 |
Two-Stage DC/DC Converter Combined of Buck and Half-Bridge LLC Voltage-Multiplying Resonance |
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| ZHANG Jin-wei
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ZHOU Dong-fang
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LI Jian-bing
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ZHENG Yang-yong.Two-Stage DC/DC Converter Combined of Buck and Half-Bridge LLC Voltage-Multiplying Resonance[J].Journal of Information Engineering University,2012,13(6):682-687,717. |
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| Authors: | ZHANG Jin-wei ZHOU Dong-fang LI Jian-bing ZHENG Yang-yong |
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| Affiliation: | Institute of Information Systems Engineering, Information Engineering University, Zhengzhou 450002, China |
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| Abstract: | This paper presents a novel frequency fixed two stage DC/DC converter combined of Buck and half bridge LLC voltage multiplying resonance,which is applied to the MPM Integrated Power Conditioner. The topology configuration of the two stage converter is introduced.The characteristics and operating principle of the end stage half bridge LLC voltage multiplying resonant converter are analyzed.Then,an optimal design methodology is proposed.Finally, a 400 W prototype is built for simulation and verification, and the full load efficiency reaches 96%. |
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| Keywords: | frequency fixed control Buck half bridge LLC voltage multiplier two stage converter |
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