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Design of LED Lights System Based on PWM for SimulatingNatural Light Intensity(PDF)

南京师范大学学报（工程技术版）[ISSN:1006-6977/CN:61-1281/TN]

Issue:
2014年03期
Page:
28-
Research Field:
Publishing date:

Info

Title:
Design of LED Lights System Based on PWM for SimulatingNatural Light Intensity
Author(s):
Qian Xingsheng1; Li Wei1; Liu Hao1; Yuan Jialei2; Xu Yinlin1
(1.School of Physics and Technology,Nanjing Normal University,Nanjing 210023,China)(2.Honor School,Nanjing Normal University,Nanjing 210023,China)
Keywords:
LED; simulating natural light; MCU; PWM
PACS:
TB472,TP273
DOI:
-
Abstract:
LED is a new type of light source with high-energy,green-environmental protection,long-life and other advantages.In this paper,the LED lighting system for simulating natural light intensity uses AT89C51 MCU as the core control chip,with LED light compensation,to achieve the best gradually bright effect of simulating natural light intensity in the rainy dark morning,which will improve the mind states when people wake up.The system adopts PT4115 high-power LED constant current driving scheme,which can realize multistage PWM dimming control of LED lights.The paper gives the hardware and software design of the system and uses the fitting curve of natural light intensity as the standard curve of LED brightness control.

References:

[1] 朱辉朝,张立贤.LED绿色照明产业发展趋势分析[J].科技创新与生产力,2010(5):50-52.
Zhu Huizhao,Zhang Lixian.Analysis of the development trend of LED green lighting industry[J].Technology Innovation and Productivity.2010(5):50-52.(in Chinese)
[2]张昊程.LED调光方案及其驱动器设计[D].西安:西安电子科技大学电子工程学院,2012.
Zhao Haocheng.Design of the Dimmable LED Schem and its Driver[D].Xi’an:School of Electronic Engineering,Xidian University,2012.(in Chinese)
[3]陈雷,赵艳军,王艳玲.基于PT4115的大功率LED恒流驱动的设计[J].灯与照明,2008,32(4):31-34.
Chen Lei,Zhao Yanjun,Wang Yanling.The high-power LED constant current driven design based on PT4115[J].Light and Lighting,2008,32(4):31-34.(in Chinese)
[4]李生彪.基于阻滞增长模型的山东省职工的年平均工资预测[J].时代金融,2013(11):124-125.
Li Shengbiao.The average annual wage prediction of workers in Shandong Province based on logistic model[J].Times Finance,2013(11):124-125.(in Chinese)
[5]郑洲顺,曲选辉.Logistic阻滞增长模型的稳定性与混沌[J].数学理论与应用,2003(3):57-59.
Zheng Zhoushun,Qu Xuanhui.Stability of logistic model and chaos[J].The Theory and Application of Mathematics,2003(3):57-59.(in Chinese)
[6]朱丹.基于C8051F020的PID参数自整定控制器的研究与实现[J].微型机与应用,2013(9):21-23.
Zhu Dan.Research and implementation of PID parameters self-tuning controller based on C8051F020[J].Microcomputer and Application,2013(9):21-23.(in Chinese)

Memo

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Last Update: 2014-09-30