| 电流连续模式下BUCK开关变换器的频率选取优化 |
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| 引用本文： | 孙跃,陈小洁,夏展阳.电流连续模式下BUCK开关变换器的频率选取优化[J].世界科技研究与发展,2010,32(5):618-621. |
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| 作者姓名： | 孙跃 陈小洁 夏展阳 |
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| 作者单位： | 重庆大学自动化学院,重庆400030 |
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| 摘 要： | 针对BUCK开关变换器工作模态多样，影响效率因素众多等问题，通过对工作于电流连续模式（CCM）下的BUCK电路进行建模，对系统的开关损耗、传导损耗，以及其他杂散损耗进行了全面的分析。分析得出了开关频率、负载电流等因素与系统效率之间的关系。最后，根据分析结果，对开关频率进行优化选取。
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| 关 键 词： | BUCK变换器 CCM 开关频率 效率 |
Frequency Selection Optimization of Buck Switch Power Converter in Continuous Current Mode |
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| SUN Yue,CHEN Xiaojie,XIA Chenyang.Frequency Selection Optimization of Buck Switch Power Converter in Continuous Current Mode[J].World Sci-tech R & D,2010,32(5):618-621. |
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| Authors: | SUN Yue CHEN Xiaojie XIA Chenyang |
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| Institution: | ( College of Automation, Chongqing University, Chongqing 400030 ) |
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| Abstract: | In a Buck converter,it exists various kinds of operating modes and the system efficiency is affected by lots of factors. This paper modelled the Buck converter working in continuous-conduction-mode （CCM） , and analyzed the switching loss, conduction loss, and other stray losses in detail. The relationship between main factors, such as switching frequency,load current etc. , and system efficiency has been derived ,based on which the switching frequency was optimized finally. |
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| Keywords: | buck switch power converter CCM Switching frequency efficiency |
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