畢業(yè)設(shè)計(jì)論文 LED在汽車照明領(lǐng)域的應(yīng)用與電路設(shè)計(jì)

摘  要
汽車光源在照明的領(lǐng)域中占有極其重要的地位，汽車照明的產(chǎn)量占整個(gè)照明光源總產(chǎn)量的10％左右。LED作為一種新型的固態(tài)光源，正在逐漸被應(yīng)用在汽車的照明系統(tǒng)中。LED是繼白熾燈、熒光燈、高強(qiáng)度氣體放電燈之后的第四代光源。LED具有結(jié)構(gòu)簡(jiǎn)單、無(wú)延遲、節(jié)能效果顯著、重量輕、安全性能好、抗震、無(wú)污染、免維護(hù)和壽命長(zhǎng)等特征。LED已成為鎢絲燈、鹵素?zé)舻谋厝蝗〈a(chǎn)品，將成為汽車的第四代照明光源。在通用照明LED技術(shù)尚未成熟前，車用市場(chǎng)是最被看好的LED市場(chǎng)。本文從LED在汽車照明系統(tǒng)中應(yīng)用的可行性入手，分析了LED在汽車低照度及高照度照明中的應(yīng)用，對(duì)LED應(yīng)用于汽車照明系統(tǒng)存在的問(wèn)題進(jìn)行了分析，并設(shè)計(jì)了一個(gè)LED驅(qū)動(dòng)電路。
關(guān)鍵詞：LED，汽車照明，剎車燈，LED驅(qū)動(dòng)電路，Protel99
ABSTRACT
Automotive light sources have an extremely important position in the field of the lighting. LED is a new type of solid-state light sources. LED is gradually being used in the automotive lighting systems. LED has a lot of advantages such as simple structure，without delay energy-saving，light weight，safety，earthquake，pollution-free，maintenance-free and long life. LED has replaced the tungsten lamp and the halogen lamps. LED is becoming the fourth generation lighting of automotive lighting. Before the LEDQ lighting technology is general becomes mature the vehicle market is the most optimistic about the LED market. This article analyzes LED in the low light intensity and the high light intensity application from the feasibility that LED applies in the automobile lighting system. And analysis the question that LED applied in the automobile lighting system。And I design a LED driver circuit.
Key words: LED，automobile lighting，brake light，LED driver，Protel99
 
目 錄
1 緒論 1
1.1 引言 1
1.2 車用光源的發(fā)展 1
1.3 LED發(fā)光二極管的簡(jiǎn)介 2
1.4 LED照明技術(shù)的發(fā)展歷程 3
1.5 LED車用光源的發(fā)展趨勢(shì)分析 4
2 LED與其他車用光源性能特性分析比較 6
2.1 引言 6
2.2 LED車用光源的優(yōu)勢(shì) 6
2.3 LED車用光源存在的主要問(wèn)題 7
2.4 小結(jié) 8
3 LED在汽車照明領(lǐng)域的應(yīng)用 9
3.1 引言 9
3.2車燈分類與基本要求 9
3.3 LED在汽車低照度照明中的應(yīng)用 10
3.4 LED在汽車高照度照明中的應(yīng)用 10
3.5 小結(jié) 12
4 LED車用光源設(shè)計(jì)分析 13
4.1 引言 13
4.2 車用LED封裝技術(shù) 13
4.3 車用LED燈光亮度要求 14
4.4 車用LED光學(xué)設(shè)計(jì) 14
4.5 車用LED散熱問(wèn)題 14
4.6小結(jié) 15
5 LED車用剎車燈的硬件設(shè)計(jì) 16
5.1 引言 16
5.2 LED剎車燈設(shè)計(jì)理念 16
5.3 基于LED剎車燈的總體框圖設(shè)計(jì) 17
5.4 基于LED剎車燈的升壓電路設(shè)計(jì) 18
5.5 基于LED剎車燈的驅(qū)動(dòng)電路設(shè)計(jì) 21
5.6 Protel軟件的應(yīng)用 23
5.7 總體設(shè)計(jì) 24
6 全文總結(jié) 28
參考文獻(xiàn) 30
致謝 31