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侯典立,张庆范,张龙,刘晓.含有PFC的LED驱动线路的改进设计[J].电源学报,2011,9(2):34-38
含有PFC的LED驱动线路的改进设计
Improvement and Design of a LED Driver with PFC
投稿时间:2010-10-18  修订日期:2010-10-31
DOI:10.13234/j.issn.2095-2805.2011.2.34
中文关键词:  填谷式PFC  LED  反激  恒流源
英文关键词:valley-filled PFC  LED  flyback  constant current source
基金项目:鲁东大学校基金资助项目(20082801)
作者单位E-mail
侯典立 鲁东大学电子与电气工程学院 hdianli@163.com 
张庆范 山东大学控制科学与工程学院 zhangqf@sdu.edu.cn 
张龙 鲁东大学电子与电气工程学院  
刘晓 山东大学控制科学与工程学院  
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中文摘要:
      LED照明愈加得到世界各国的重视,针对LED特性文中描述了其驱动方式,分析和讨论了填谷式无源功率因数校正(Power Factor Correction,PFC)和反激拓扑的工作原理,提出了一种新的改进填谷式功率因数校正线路,并给出了仿真波形。针对高亮度LED照明的应用,文章进一步阐述了更加适合于LED照明特性的反激线路及电流采样和反馈线路,基于此原理设计了一款LED控制器产品,系统长期运行稳定可靠。
英文摘要:
      LED lighting has been more and more important in the world,LED driver has been described according to the character of LED.The principle of valley-filled YFC and flyback circuit has been analyzed and discussed.A novel and improved valley-filled YFC circuit is proposed with simulation result.For the application of high lighteness LED,the flyback and current-sensing and feedback circuits more suitable for LED lighting have been further studied.A LED driver has been designed according to the theory and works well and stably for a long time.
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