| 无电解电容无频闪的LED驱动电源 |
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| 引用本文： | 王舒,阮新波,姚凯,叶志红.无电解电容无频闪的LED驱动电源[J].电工技术学报,2012(4):173-178. |
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| 作者姓名： | 王舒 阮新波 姚凯 叶志红 |
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| 作者单位： | 南京航空航天大学航空电源重点实验室;光宝电子有限公司 |
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| 基金项目： | 光宝电子(东莞)有限公司资助项目 |
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| 摘 要： | 新型光源要符合以下四个条件:高效、节能、无污染及模拟自然光,发光二极管(LED)就具有这样的优点。采用脉动电流驱动大功率LED可以去除驱动电源中的电解电容,大大提高驱动电源的寿命。但是LED中存在两倍工频的频闪。本文在此基础上,提出一种无电解电容、无频闪的新型LED驱动电源,既去除了电解电容,提高了LED驱动电源的使用寿命,又解决了脉动电流驱动带来的LED频闪的问题。
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| 关 键 词： | 发光二极管 功率因数校正 频闪 驱动电路 |
A Novel LED Driver Without Electrolytic Capacitor and Flicker |
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| Wang Shu,Ruan Xinbo,Yao Kai,Ye Zhihong.A Novel LED Driver Without Electrolytic Capacitor and Flicker[J].Transactions of China Electrotechnical Society,2012(4):173-178. |
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| Authors: | Wang Shu Ruan Xinbo Yao Kai Ye Zhihong |
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| Affiliation: | 1.Nanjing University of Aeronautics and Astronautics Nanjing 210016 China 2.Lite-on Technology Corp.Nanjing 210019 China) |
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| Abstract: | New light source needs to meet the following four features: efficient,energy saving,no pollution,simulated natural light.LED meets all the needs.Driving high power LEDs with pulsating current can greatly increase the lifetime of LED driver due to removing the electrolytic capacitor.But this brings the problem of flicker of twice the line frequency.A novel electrolytic-less and no flicker LED driver is proposed on the base.And this not only makes the LED driver with long lifetime,but also solves the problem of flicker with pulsating current. |
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| Keywords: | Lighting emitting diode power factor correction flicker driver |
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