大型動感霓虹燈設計論文.doc

本科畢業(yè)論文（設計）論文題目：大型動感霓虹燈設計學生姓名：所在院系：機電學院所學專業(yè)：應用電子技術教育導師姓名：完成時間：摘要該動感霓虹燈設計是基于8031單片機、串口聯(lián)級新型的共陰極驅動芯片MAX7219霓虹燈掃描控制器，采用環(huán)保節(jié)能LED及LED燈組以實現(xiàn)個性化的動態(tài)顯示效果。該設計的動感霓虹燈，整體上可以分為電源模塊、顯示模塊和控制模塊三個部分。電源模塊采用變壓器、橋式整流濾波電路和7805穩(wěn)壓芯片構成，為CPU、EPROM及MAX7219等弱電電路供電。顯示模塊采用LED及LED燈組，燈線采用獨立LED有序排列形成，燈字則采用LED燈組來實現(xiàn)，并用MAX7219來實現(xiàn)恒流驅動，整體效果動感十足，醒目形象。控制模塊包括單片機8031、程序存儲器EPROM2732、地址鎖存器74LS373、地址鎖存器74LS138等，完成向顯示驅動模塊輸送掃描花樣信號的任務。設計采用新型掃描控制器及MAX7219驅動，具有較高的通用性及很大的實用價值，顯示則采用LED實現(xiàn)動感效果，節(jié)能環(huán)保，經濟實用。整體設計成本低廉，實用性強，節(jié)能環(huán)保，有較高的通用性。關鍵詞：LED，動感霓虹燈，單片機，掃描控制，軟件設計TheDesignofLarge-scaleDynamicNeonAbstractThisdesignofdynamicNeonlightisbasedon8031SingleChipMicyoco,theserialportassociationlevelnewcommoncathodedrivestomovethechip-MAX7219neonlightscanningcontroller,usesLEDandtheLEDlampbankrealizesthepersonalizeddynamicdemonstrationeffect.Thisarticleintroducedthedesignofdynamicneonlight,divideintothepowersourcemodule,thedemonstrationmoduleandthecontrolmoduleroughly.Thepowersourcemoduleusesthetransformer,thebridgetyperectificationfiltercircuitand7805constantvoltagechipconstitution,isCPU,EPROMandMAX7219andsoontheweakelectricityelectriccircuitpowersupply.ThedemonstrationmoduleusesLEDandtheLEDlampbank,thelampwireusestheindependentLEDorderarrangementformation,thelampcharacterusestheLEDlampbanktorealize,andrealizestheconstantflowactuationwithMAX7219,theoveralleffectprojectisfull,strikingimage.Thecontrolmoduleincludingthemonolithicintegratedcircuit8031,programmemoryEPROM2732,addresslatch74LS373,addresslatch74LS138andsoon,completestothedemonstrationactuationmoduletransportationscanningpatternsignalduty.ThedesignusesthenewscanningcontrollerandtheMAX7219actuation,hasthehighversatilityandtheverygreatpracticalvalue,demonstratedusestheLEDtorealizedynamiceffect,theeconomyispractical.Theoveralldesigncostisinexpensive,usable,theenergyconservationenvironmentalprotection,hasthehighversatility.Keywords：LED,DynamicNeon,SingleChipMicyoco,ScanContronl,SoftwareDesign目錄1緒論.12系統(tǒng)方案設計.12.1系統(tǒng)方框圖.22.2動感效果圖.23系統(tǒng)原理概述及仿真.33.1電源模塊.33.2顯示模塊.43.2.1發(fā)光二極管的工作特性.53.2.2發(fā)光二極管的工作原理.53.2.3發(fā)光二極管的驅動電路.73.2.4PWM(脈寬調制)調光技術.83.3控制模塊.93.3.1單片機8031最小化系統(tǒng).93.3.2程序存儲器EPROM2732.113.3