LED日光燈的設計與實現

電子信息工程論文編號:DZXX181  論文字數:10797,頁數:31

目錄

摘要 I
ABSTRACT II
第1章 引言 1
 1.1 背景 1
 1.2 研究內容 2
第2章 設計平臺概述 3
 2.1 Protel 99 SE介紹 3
 2.2 Protel 99 SE的系統組成 3
 2.3 Protel 99 SE的特點 4
第3章 硬件電路分析設計 6
 3.1 LED日光燈的組成 6
 3.2 LED光源 6
 3.2.1 LED光源的選擇 6
 3.2.2 LED光源的排列 7
 3.3 驅動電路總體分析設計 8
 3.3.1 LED的電學特性 9
 3.3.2 LED驅動原理 9
 3.4 LED恒流驅動芯片 10
 3.4.1 BP2808恒流驅動芯片 10
 3.5 交流驅動LED前級電路 13
 3.5.1 EMI濾波器設計 13
 3.5.2 整流電路設計 14
 3.5.3 功率因數校正電路設計 15
 3.6 LED驅動電路 16
 3.7 元件參數設計 17
第4章 成果測試與分析 21
 4.1 驅動電源測試結果與分析 21
 4.2 LED日光燈測試結果與分析 21
第5章 結束語 24
致謝 25
參考文獻 26
附錄 實物圖 27

摘要

 LED是一種可以將電能轉變為光能的半導體發光器件，屬于固態光源。隨著近幾年來高光效、高亮度的白光LED的開發成功，使得LED在照明領域的應用成為可能。LED作為新型光源，具有壽命長、啟動時間短、無紫外線、色彩豐富飽滿、低壓安全等特點。LED日光燈使用高亮度白光LED作為光源，擁有LED光源的各種優點。LED的日光燈的長度和普通日光燈的長度完全吻合，可以完全替代現今廣泛使用的熒光型日光燈，有著廣闊的市場前景和巨大的商業價值。LED日光燈憑借其極高的光效，以及與傳統日光燈座的兼容性，正逐步地走上照明的舞臺。
 本文對LED日光燈的設計過程作系統的介紹，主要內容是LED日光燈電子部分的設計，實現電源的恒流驅動以及LED光源的排列。
 
關鍵詞：發光二極管，日光燈，恒流驅動，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