功率型白光LED的非线性混合调光方法

周锦荣

doi:10.3788/fgxb20173809.1249

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功率型白光LED的非线性混合调光方法

发光学应用及交叉前沿 | 更新时间：2020-08-12

- 功率型白光LED的非线性混合调光方法
- Nonlinear Mixed-dimming Method for Power White LED
- 发光学报 2017年38卷第9期页码：1249-1255
- 作者机构：
  
  闽南师范大学物理与信息工程学院,福建漳州,363000
- 作者简介：
  
  [ "周锦荣(1974-),男,福建漳州人,硕士,2006年于同济大学获得硕士学位,主要从事光电控制与信息处理方面的研究。E-mail:jinrongzhou@163.com" ]
- 基金信息：
  
  福建省自然科学基金（2016J01758）();福建省资助省属高校科研专项（JK2016026）();福建省教育厅科技项目（JAT160284）资助()
- DOI：10.3788/fgxb20173809.1249
  中图分类号： TM923;TN206
- 纸质出版日期：2017-9-5，
  
  网络出版日期：2017-6-6，
  
  收稿日期：2017-2-8，
  
  修回日期：2017-3-22，
扫描看全文
周锦荣,. 功率型白光LED的非线性混合调光方法[J]. 发光学报, 2017,38(9): 1249-1255

ZHOU Jin-rong,. Nonlinear Mixed-dimming Method for Power White LED[J]. Chinese Journal of Luminescence, 2017,38(9): 1249-1255
周锦荣,. 功率型白光LED的非线性混合调光方法[J]. 发光学报, 2017,38(9): 1249-1255 DOI： 10.3788/fgxb20173809.1249.

ZHOU Jin-rong,. Nonlinear Mixed-dimming Method for Power White LED[J]. Chinese Journal of Luminescence, 2017,38(9): 1249-1255 DOI： 10.3788/fgxb20173809.1249.

摘要

分析脉冲宽度调制（PWM）双通道输出白光LED的混合调光方法，建立PWM与混合光源输出的光通量和色温之间变化关系的非线性数学模型。基于ZigBee无线通信模块CC2530作为双路PWM输出，控制以SN3350为核心的LED恒流驱动电源，完成占空比可调的暖白和冷白两路白光LED的色温和光通量混合调光控制系统设计，并通过高精度快速光谱辐射计HAAS-2000测试系统进行测试。实验结果表明，双路PWM能够较好地实现对LED色温和光通量的输出大小进行控制，混合光源相关色温在3 250~15 000 K范围内连续可调。理论计算与系统控制的光通量和色温存在的相对误差分别小于1.70%和8.50%。

Abstract

A nonlinear mathematical model of the relationship between the luminous flux and the color temperature of the hybrid light source is established by analyzing the hybrid dimming method of pulse width modulation (PWM) dual channel output white LED. The system uses ZigBee wireless communication module CC2530 as a dual PWM output control to SN3350 as the core of the LED constant current drive power. It achieves a duty cycle adjustable warm white and cool white two white LED color temperature and luminous flux mixed dimming control. Experiments were carried out using a high-precision

fast spectroradiometer (HAAS-2000) test system. Experimental results show that the dual PWM can achieve better control of LED color temperature and luminous flux

and the correlated color temperature of the mixed light source can be continuously adjusted in the range of 3 250 K to 15 000 K. The relative errors of theoretical calculation and system control are less than 1.70% and 8.50%

respectively

corresponding to the luminous flux and color temperature.

关键词

动态照明控制LED混合调光非线性调光脉冲宽度调制

Keywords

dynamic lighting controlLED mixed dimmingnonlinear mixed dimmingpulse width modulation(PWM)

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