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ID:6363180
大小:1.16 MB
页数:60页
时间:2018-01-11
《毕业设计(论文)-基于at89c51单片机数控直流稳压电源设计》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库。
1、长春工业大学学士学位论文摘要本文主要论述了一种基于AT89C51单片机为核心控制器的数控直流稳压电源的设计原理和实现方法,其主要由辅助电源、显示电路、控制电路、数模转换电路、稳压电路和模数转换电路六部分组成。该系统原理是以AT89C51单片机为控制单元,以数模转换芯片DAC0832输出参考电压,以模数转换芯片TLC1534对采样值进行转换为数字信号。辅助电源提供各个芯片、数码管和放大器所需工作电压,显示电路用于显示电源输出电压的大小,输出电压值可通过按键对其进行步进控制(±0.1V),并且在按键长时间按
2、下的时候能连续增加或减小。与传统的稳压电源相比具有操作方便,电源稳定性高以及其输出电压大小采用数码显示的特点。该系统具有抗干扰性能好,可靠性高,及最终输出电压值与真实显示值精确度较高等优点。关键词:数控直流稳压电源AT89C51DAC0832TLC1543I长春工业大学学士学位论文DesignofDigitalPowersourceAbstractThemethodofthispaperbasedontheAT89C51microcontrollercoreofthenumericalcontrolle
3、rDCpowersupplydesigntheoryandrealization.ThedigitalDCpowersupplyfromtheanalogpower,displaycircuit,controlcircuit,digital-to-analogconversioncircuit,regulatorcircuitandanalog-to-digitalconvertercircuitcomposedofsixparts.Thissystemisbasedontheprincipleofsi
4、ngle-chipmicrocomputertocontroltheunitAT89C51toDAC0832digital-to-analogconverterchipreferencevoltagetocontroltheoutputvoltage,whiletheanalog-to-digitalconverterADC0832chipconvertthesamplingofvoltagetodigitalsignals.Analogpowersupplytoprovidethevariouschi
5、ps,digitalamplifiercontrolandtherequiredoperatingvoltage,displaycircuitfordisplayingthesizeofpowersupplyoutputvoltage,outputvoltagevaluemaybesteppingthroughthecontrolbutton(±0.1V),andalongbuttonpresswhenunderthecontinuousincreaseordecrease.Andcomparedtot
6、hetraditionalregulatedpowersupplywitheasytooperate,highpowerstability,aswellasthesizeoftheoutputvoltagecharacteristicsoftheuseofdigitaldisplay.Thissystemhastheresistancetointerferencewell,thereliabilityishigh,andfinallyoutputvoltagevalueandrealdemonstrat
7、ionvalueprecisionhighermerit.Keywords:DigitalDCVoltage-stabilizedPowerSourceAT89C51DAC0832TLC1543II长春工业大学学士学位论文目录摘要....................................................................................................................................IAbstra
8、ct..................................................................................................................................II绪论......................................................................................
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