| HOU Dian-li,ZHANG Qing-fan,ZHANG Long,LIU Xiao.Improvement and Design of a LED Driver with PFC[J].JOURNAL OF POWER SUPPLY,2011,9(2):34-38 |
| Improvement and Design of a LED Driver with PFC |
| Received:October 18, 2010 Revised:October 31, 2010 |
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| DOI：10.13234/j.issn.2095-2805.2011.2.34 |
| Keywords:valley-filled PFC LED flyback constant current source |
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| Author | Institution | Email |
| HOU Dian-li |
School of Electronic and Electrical Engineering, Ludong University |
hdianli@163.com |
| ZHANG Qing-fan |
School of Control Science and Engineering, Shandong University |
zhangqf@sdu.edu.cn |
| ZHANG Long |
School of Electronic and Electrical Engineering, Ludong University |
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| LIU Xiao |
School of Control Science and Engineering, Shandong University |
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| Abstract: |
| 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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