| 一种优化同步整流AC/DC变换器的应用研究 |
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| 引用本文： | 黄占伟,周娟,谢承旺.一种优化同步整流AC/DC变换器的应用研究[J].华东交通大学学报,2012,29(2):36-41. |
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| 作者姓名： | 黄占伟 周娟 谢承旺 |
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| 作者单位： | 1. 江西省宜春市科学技术情报所,江西宜春,336000
2. 华东交通大学软件学院,江西南昌,330013 |
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| 基金项目： | 国家自然科学基金项目(61165004);江西省自然科学基金项目(20114BAB201025);江西省科技支撑计划项目(20112BBE50026);江西省教育厅科技项目(GJJ12307) |
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| 摘 要： | 同步整流的零电流开关、零电压开关是高效率开关电源的研究热点,首先对反激拓扑的零电流开关同步整流原理进行了分析,说明了真值零电流检测与实现零电流开关同步整流的关系,再应用理论计算,推导出优化的效率,最后利用NCP4303说明其控制实现,并进行了电路的验证.
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| 关 键 词： | 反激拓扑 同步整流 效率优化 交流/直流(AC/DC)变换器 |
On Application of an Optimized Synchronous Rectification AC/DC Converter |
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| Huang Zhanwei
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Zhou Juan
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Xie Chengwang.On Application of an Optimized Synchronous Rectification AC/DC Converter[J].Journal of East China Jiaotong University,2012,29(2):36-41. |
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| Authors: | Huang Zhanwei Zhou Juan Xie Chengwang |
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| Institution: | 1.Institute of Science and Technology Information of Yichun,Yichun 336000,China;2.School of Software,East China Jiaotong University,Nanchang 330013,China) |
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| Abstract: | The research trend of high efficiency power supply is the zero current switch(ZCS)and zero voltage switch(ZVS)for synchronous rectifier(SR).In this thesis,the SR principle of ZCS of flyback topology is analyzed to show the relationship between true zero current detecting and ZCS synchronous rectification.Then,a theory calculation is used to deduce the optimizing efficiency.Finally,NCP4303 is utilized to show its controlling implement,and the circuit is tested. |
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| Keywords: | flyback topology synchronous rectification efficiency optimization AC/DC converter |
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