| 高亮度LED调光研究 |
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| 引用本文： | 罗学恒.高亮度LED调光研究[J].武汉职业技术学院学报,2013,12(1):81-83,89. |
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| 作者姓名： | 罗学恒 |
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| 作者单位： | 武汉职业技术学院计算机学院,湖北武汉,430074 |
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| 摘 要： | 高亮度LED作为照明和家庭装饰材料在近年来迅速发展,为了适应不同应用场合,对其进行无级调光意义非同寻常。选用单片机作为调光的主控器,运用大功率开关管作为驱动部件,采用按钮开关(亦可以采用触摸开关)控制将光线调节到舒适度适中。当单片机接收到按钮开关的调节命令后通过修改定时器初值来控制有效电平的宽度达到控制亮度的目的。系统具有节能、无级调光和操作方便等特点。
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| 关 键 词： | 高亮度LED 单片机 无级调光 |
Research on Dimming of LED Light with High Brightness |
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| LUO Xue-heng.Research on Dimming of LED Light with High Brightness[J].Journal of Wuhan Institute of Technology,2013,12(1):81-83,89. |
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| Authors: | LUO Xue-heng |
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| Institution: | LUO Xue-heng(School of Computer Science,Wuhan Polytechnic,Wuhan430074,China) |
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| Abstract: | LED with high brightness has been widely used in household lamination in recent years. And it is sig- nificant to develop stepless dimming technology to cater for the needs of different markets. In this research, a LED dim- ming system is proposed： Single-chip microcomputer （SCM） is used as the master controller of dimming; high voltage switch transistors are Used as driving device; button switch is used to control the brightness of light. Upon picking up orders of adjustment from button switch, the SCM will control width of valid power level by altering the default value of timer and therefore control the brightness of LED light. The paper concludes that the system is economical, easy to op- erate and can dim steplessly. |
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| Keywords: | high brightness LED light singie-chip microcomputer stepless dimming |
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