直流稳定稳压稳流电源毕业的设计

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1、直流稳定稳压稳流电源毕业的设计摘要摘要本设计分别用LM317三端稳压芯片设计直流稳压电源，利用三极管输出特性设计直流稳流电源。通过相关知识计算出各电路中各个元器件的参数，使电路性能达到设计要求中的电压调整率，电流调整率，负载调整率，纹波电压等各项指标。本设计的拓展功能就是基于单片机的LCD显示电路，其原理是稳定电源所输出的稳定电压、电流经A/D转换电路，将模拟量转变成数字量，再经由AT89S52单片机构成的主控电路，单片机控制后面的液晶显示电路，最后电压值、电流值以数字的形式直观的显示出来。关键词：稳压，稳流，调整率，单片机IAbstractAbstractT

2、hisdesignLM317three-terminalregulatorchipdesignpowersupply,thetransistoroutputcharacteristicsdesignstabilizedpowersupply.Calculatedthroughtheknowledgeofthevariouscomponentsinthevariouscircuitparameters,sothattheperformanceofthecircuitdesignrequirementsforthevoltageregulation,current

3、regulation,loadregulation,ripplevoltageindicators.Stableoutputvoltage,currentthroughtheA/Dconvertercircuit,theanalogintodigital,andthenenterthemaincontrolcircuitconstittedbythemicrocontrollerAT89S52SCMcontrolbehindtheLCDcircuit,thefinalvoltagevalueindigitalform,thecurrentthevalueofi

4、ntuitivedisplayout.Keywords:energysupply，voltageregulator，steadyflow，SCMII目录目录摘要.................................................................................................................ⅠABSTRACT.................................................................................

5、........................II目录.................................................................................................................Ⅲ第一章绪论.......................................................................................................11.1课题的背景和意义.....................

6、.................................................................11.2设计过程工艺要求......................................................................................11.3国内外的研究现状......................................................................................2第二章稳压电路系统方案论证........

7、.................................................................3第三章稳流电路系统设计方案.........................................................................6第四章系统总体设计原理框图.........................................................................94.1稳定电源工作原理和整体电路...........................

8、...................