| 一种非线性可控硅调光的LED驱动电路 |
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| 引用本文： | 程元奋,葛良安,姚晓莉,林维明.一种非线性可控硅调光的LED驱动电路[J].江苏电器,2011(2):30-32,38. |
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| 作者姓名： | 程元奋 葛良安 姚晓莉 林维明 |
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| 作者单位： | 福州大学电气工程与自动化学院;英飞特电子(杭州)有限公司; |
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| 摘 要： | 分析了常见的双向可控硅(TRIAC)调光器应用在LED驱动上存在的问题.设计了一种利用普通PWM芯片结合外围电路搭建的可控硅非线性调光LED驱动电路,阐述了调光过程中电路的工作特性.实验结果表明,该驱动电路可实现0～100%平稳无闪烁调光.
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| 关 键 词： | LED照明 LED驱动电路 可控硅调光 非线性 |
Nonlinear Dimmable Light-Emitting Diode Driver Circuit with TRIAC Phase Control |
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| Authors: | CHENG Yuan-fen GE Liang-an YAO Xiao-li LIN Wei-ming Co Ltd Hangzhou China |
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| Affiliation: | CHENG Yuan-fen1,GE Liang-an2,YAO Xiao-li2,LIN Wei-ming1 (1 College of Electrical Engineering and Automation,Fuzhou University,Fuzhou 350108,China,2 Inventronics Electronics (Hangzhou) Co.,Ltd,Hangzhou 310053,China) |
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| Abstract: | Analysis was made to the existing familiar problems caused by the application of TRIAC dimmer in the light-emitting diode (LED) driver. A kind of thyristor nonlinear dimmable LED driver circuit was designed based on PWM integrated circuit with periphery circuits. The working characteristic of the circuit in the dimming process was expatiated. The result showed that the driver can realize smooth dimming from zero to one hundred percent without flashing. |
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| Keywords: | light-emitting diode lighting light-emitting diode driver thyristor light dimming nonlinear |
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