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1、WuxiInstituteofCommerce毕业设计论文基于TC14433数字电压表设计与实现齐会杰指导老师姓名：房曙光专业名称：电气自动化班级学号：09137111论文提交H期:论文答辩口期:年月曰摘要本数字屯压表所采用的芯片是TC14433o该简易数字电压表可以测量0〜2V范围内的输入电压值，并在4位LED数码管上轮流显示或单路选择显示。另一方面，精度也从0.1%提高到了现在的0.01%——0.005%,而且从实验空用的高价的所谓的样品开始已发展到了现在厂矿企业广为利用的所谓的廉价型，进而岀现了能够用于安装板上作指示仪表的安装型。本文首
2、先对基于TC14433数字屯压表的背景和国际研究做了简要概述，让人们更直观的发现该设计的优点。接着介绍了TC14433的引脚功用和一些元件的作用，对电路的原理和结构做了简要的说明，并且通过DS1—DS4控制数码管将电压值显示在LED数码管上，还提供了一些设计所需的理论数据，最后总结了故障的测试方法和结论。该项设计具有广泛的发展前途，相信在今后的舞台上会占有一席之地。本设计详细描述了数字屯压表的测试与显示。其主要器件为芯片TC14433,用TC14433完成电压电压的AD转换，再经过CD4543B译码，用一个反相驱动器1413芯片驱动数码管显
3、示.即CD4543B锁存一译码和共阳极LED发光数码管组成是将被测模拟量转换为数字量，并进行实时数字显示的系统。关键词：TC14433AD转换数码管显AbstractThedigitalvoltmeterofthechipisTC14433chip,thechiphassmallvolume,lightweight,lowcostadvantages・Thissimpledigitalvoltmetercanmeasure0~2Vwithinthescopeoftheinputvoltagevalues,andinthefourLEDdig
4、italdisplayortakingturnsonthesingleoptiontoshow.Ontheotherhand,theprecisioncanalsoincreasedfrom0.1%to0.01%now-0.005%,andfromtheexperimentwiththehighpriceofemptythesampleoftheso-calledhasnowwidelyuseofminestheso-calledcheaptype,andcanbeusedtoinstallboardappearedontheinstalla
5、tioninstructionstype.ThispaperbasedonTC14433digitalvoltmeterbackgroundandinternationalresearchisbrieflyintroduced,andletpeoplemoreintuitivefoundthatthedesignadvantages.ThenitintroducestheTC14433pinfunctionandsomecomponentsfunction,tothecircuitprincipleandstructuredidbriefly
6、,andthroughtheDS1-DS4controldigitaltubewillbedisplayedinvoltageLEDdigitaltube,andalsoprovidessomedesignintherequiredtheoreticaldata,finallysummarizedthefaultofthetestingmethodandtheconclusion.Thedesignhaswidedevelopmentoutlook,believethatinthefutureholdsaplaceonthestage.Thi
7、sdesigndetaileddescriptionsofthedigitalvoltmetertestanddisplay.ThemaindeviceforchipTC14433,completewithTC14433voltagevoltageofADconversion,andthenafterCD4543Bdecoding,withAreversephasedrive1413chipdrivedigitalpipedisplay.ThatisCD4543Blatch-decodingofanodeandLEDdigitaltubec
8、ompositionisbeingmeasuredanalogconversionforthedigitalquantity,andthereal-timedigi
