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基于反激变换器的高功率因数LED驱动电源设计 被引量：22

Design of high-power-factor LED driver power supply based on flyback converter
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摘要 针对传统的发光二极管(LED)驱动电源功率因数不高的问题,在需要隔离的场合选择反激电路作为主电路拓扑实现功率因数校正(PFC)和LED电流的控制。通过对反激电路的分析,证明了工作在临界连续模式下的反激电路可以实现PFC。该电源是采用反激电路为主电路的单级PFC电路,能同时实现PFC和LED电流控制,相对2级功率因数校正电路,所用器件少,损耗低,在输入、输出需要隔离的场合是很好的选择。通过调试和实验测试证明了理论分析的正确性。 To realize the PFC（Power Factor Correction） and LED current control of traditional LED driver power supply,the flyback topology is applied where the isolation is needed.Circuit analysis proves that,the flyback circuit working in boundary conduction mode can realize PFC function.Single-stage flyback-based PFC circuit is adopted in the improved LED driver power supply.Compared with two-stage PFC circuit,it has fewer components and lower power loss.Experimental results validate the correctness of theoretical analysis.
作者 沈霞 王洪诚 蒋林 许瑾 方玮
机构地区 西南石油大学电气信息学院
出处 《电力自动化设备》 EI CSCD 北大核心 2011年第6期140-143,共4页 Electric Power Automation Equipment
基金 西南石油大学科技基金项目(2010XJZ210)~~
关键词 功率因数校正 LED驱动电源 反激变换器 临界连续模式 electric power factor correction LED driver power supply flyback converter boundary conduction mode
分类号 TM910.2 [电气工程—电力电子与电力传动]
作者简介 沈霞（1981-），女，四川彭州人，讲师，硕士，研究方向为电力电子与电力传动（E-mail：xia_shen@163．com）； 王洪诚（1955-），男，四川阆中人，教授，研究方向为控制理论与控制工程（E-mail：whc@swpu．edu．cn）； 蒋林（1974-）。男，四川宣汉人，讲师，博士，研究方向为电力电子与电力传动（E-man：ilin@swpu．edu．cn）； 许瑾（1980-），女．宁夏银川人，讲师，硕士，研究方向为电力电子与电力传动（E-mall：lemonjin@126．com）； 方玮（1975-），女，湖北武穴人，讲师，研究方向为电力电子与电力传动（E-mail：villal006@163．com）。
  • 相关文献

参考文献13

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二级参考文献31

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共引文献39

同被引文献129

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引证文献22

二级引证文献48

电力自动化设备
2011年 第6期

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