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LED日光灯的设计与实现_电子信息工程毕业论文

发布时间:2014-10-10 来源:人大经济论坛
目录 摘要I ABSTRACTII 第1章 引言1 1.1 背景1 1.2 研究内容2 第2章 设计平台概述3 2.1 Protel 99 SE介绍3 2.2 Protel 99 SE的系统组成3 2.3 Protel 99 SE的特点4 第3章 硬件电路分析设计6 3.1 LED日光灯的组成6 3.2 LED光源6 3.2.1 LED光源的选择6 3.2.2 LED光源的排列7 3.3 驱动电路总体分析设计8 3.3.1 LED的电学特性9 3.3.2 LED驱动原理9 3.4 LED恒流驱动芯片10 3.4.1 BP2808恒流驱动芯片10 3.5 交流驱动LED前级电路13 3.5.1 EMI滤波器设计13 3.5.2 整流电路设计14 3.5.3 功率因数校正电路设计15 3.6 LED驱动电路16 3.7 元件参数设计17 第4章 成果测试与分析21 4.1 驱动电源测试结果与分析21 4.2 LED日光灯测试结果与分析21 第5章 结束语24 致谢25 参考文献26 附录 实物图27 摘要 LED是一种可以将电能转变为光能的半导体发光器件,属于固态光源。随着近几年来高光效、高亮度的白光LED的开发成功,使得LED在照明领域的应用成为可能。LED作为新型光源,具有寿命长、启动时间短、无紫外线、色彩丰富饱满、低压安全等特点。LED日光灯使用高亮度白光LED作为光源,拥有LED光源的各种优点。LED的日光灯的长度和普通日光灯的长度完全吻合,可以完全替代现今广泛使用的荧光型日光灯,有着广阔的市场前景和巨大的商业价值。LED日光灯凭借其极高的光效,以及与传统日光灯座的兼容性,正逐步地走上照明的舞台。 本文对LED日光灯的设计过程作系统的介绍,主要内容是LED日光灯电子部分的设计,实现电源的恒流驱动以及LED光源的排列。 关键词:发光二极管,日光灯,恒流驱动,照明 ABSTRACT LED is a kind of energy can be transformed into a semiconductor light emitting devices are solid state light sources. As in recent years, high light efficiency, high brightness white LED's developed, making the field of LED lighting applications possible. As a new type of LED light source, long life, start time is short, UV and color rich and full, low security and so on. High-brightness white LED fluorescent tube LED as a light source, with advantages of LED light sources. LED fluorescent lamp fluorescent lamp length and the length of ordinary fully consistent, you can completely replace the current widespread use of fluorescence-based fluorescent lamps, has a broad market prospect and huge commercial value. LED fluorescent light with its high efficiency, and compatibility with the traditional fluorescent lamp seat, is gradually took to the stage lighting. In this paper, LED fluorescent light of the design process for a systematic introduction, main content is part of the design of LED Fluorescent Lamp, power supply, constant current driver and LED light source array. Keywords: light-emitting diodes, fluorescent lamps, constant current drive, lighting
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