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1、浙江理工大學(xué)碩士學(xué)位論文摘要隨著全球范圍內(nèi)能源危機(jī)問題的日益嚴(yán)重,低碳和環(huán)保已成為焦點(diǎn)議題,越來越為人們所重視,照明作為電力能源消耗的一大方面也備受關(guān)注。LED(LightEmittingDiode)作為全新概念的固態(tài)光源,因其具有節(jié)能、環(huán)保、壽命長、易控制和效率高等顯著優(yōu)點(diǎn),被公認(rèn)為是21世紀(jì)全球最具發(fā)展前景的高新技術(shù)之一。半導(dǎo)體照明技術(shù)的革新正在改寫傳統(tǒng)照明的歷史。目前,LED照明已經(jīng)開始全面進(jìn)入室內(nèi)及家居照明,大功率LED應(yīng)用于通用照明成果令人矚目,LED家居照明是潛力巨大的市場。本課題基于LED
2、家居照明面臨的技術(shù)問題展開研究,通過對LED特點(diǎn)及其應(yīng)用領(lǐng)域的分析,設(shè)計一款適用于家居照明的數(shù)字式LED驅(qū)動電源,基于C8051F020單片機(jī)和JF24D無線模塊設(shè)計LED智能調(diào)光系統(tǒng)。本文采用PWM調(diào)光技術(shù),實(shí)現(xiàn)無色偏、高精度、高效率的LED亮度調(diào)節(jié)。本論文的主要研究工作分為以下幾個方面:第一,介紹課題的研究背景,分析LED驅(qū)動電源的研究現(xiàn)狀。第二,對LED驅(qū)動電源的拓?fù)浣Y(jié)構(gòu)及其工作原理進(jìn)行深入分析,結(jié)合LED特性,設(shè)計一款反激式LED數(shù)字驅(qū)動電源。第三,基于數(shù)字式LED驅(qū)動電源設(shè)計智能調(diào)光系統(tǒng),設(shè)計
3、了各個功能模塊的硬件電路和軟件程序。第四,對系統(tǒng)的各個功能模塊進(jìn)行了測試,并對測試結(jié)果進(jìn)行了分析。最后,對以上幾個方面的工作進(jìn)行總結(jié),并對LED驅(qū)動技術(shù)進(jìn)行了展望。關(guān)鍵詞:LED;數(shù)字電源;PWM;智能調(diào)光;浙江理工大學(xué)碩士學(xué)位論文DesignofAdjustableOpticalDigitalLEDDriverPowerSupplyAbstractBecauseoftheglobalenergycrisisproblemgrowing,low-carbonandenvironmentalprotect
4、ionhasbecomeafocusissue.Peoplepaymoreandmoreattentiontothese.Asamajorofelectricalenergyconsumption,lightingareconcerned.LED(LightEmittingDiode)asanewconceptofsolid-statelightsource,becauseofitsadvantagessuchasenergysaving,environmentalprotection,longlife
5、,highefficiency,easycontrolandSOon,isrecognizedasoneofthemostpromisinghigh-techof21stcenturyalloftheworld.Semiconductorlightingtechnologyinnovationisrewritingthehistoryoftraditionallighting.Atprecent,LEDlightinghasalreadybeenenteredthehouselighting.Highp
6、owerLEDapplicationingenerallightingachievementisoutstanding.LEDhomefurnishinglightingisahugepotentialmarket.Inthispaper,weresearchthetechnicalproblemsofLEDhouseholdlighting,analysisthecharacteristicsandapplicationfieldsofLED,designahigh-powerLEDdiversupp
7、lywhichappropriateforhouseholdlighting,anddesignaLEDintelligentlightingcontrolsystembasedonC8051F020MCUandJF24Dwirelessmodule.Weadoptdigitaldimmingtechnologytoachievehighprecision,highefficiency,withoutcolorpartialLEDbrightnessadjustment.Thepaper’Smainre
8、searchworkisdividedintothefollowingareas:Firstly,introducethebackgroundoftheresearch,andanalyzetheresearchsituationofLED“verpowersupply.Secondly,deeplyanalysesthetopologicalstructureandworkingprincipleofLEDdriverpowersuppl