资源描述:
《数控直流稳压电源毕业设计论文》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、毕业设计论文数控直流稳压电源摘要本设计为一种简易数控直流稳压电源。该电源由电源供电模块、加减数控调压模块、数模转换和模数转换模块、电压调整模块以及数字输出显示电路等组成。该设计以STC90C516RD+单片机为基本控制核心,通过单片机控制数模转换芯片DAC0832输出稳压电源的基准电压,再通过两级放大输出到电压调整管,控制调节输出电源电压。该数控电源可以通过粗调和微调按键实现0-10V之间不同幅值的电压输出,同时还设置了+3.3V和+5V电压设定按键,以实现常用芯片电压的快速设定。设计中采用LCD1602液晶
2、显示设定电压和电源输出的实际电压,便于观察和调整。在设计中,对该电源系统进行了Proteus仿真,配合KeiluVision4软件的应用,得到比较满意的仿真结果。另外,该数控电源具有较好的抗干扰能力,可靠性较高,易于调节,操作简单,输出电压值与真实显示电压值精度较高等优点。关键词:数控直流稳压电源,STC90C516,模数转换,Proteus仿真,LCD1602NumericalControlDCRegulatedPowerSupplyABSTRACTThisgraduationdesignisakindof
3、numericalcontroldcregulatedpowersupply.Thepowerissuppliedbytheregulatedpowersupplypowersupplymodule,plusorminusnumericalcontrolregulatingmodule,digital-to-analogconversionandanalog-to-digitalconversionmodule,voltageregulationmodules,anddigitaloutputdisplayc
4、ircuit.Thebasiccontrolcoreofthisdesignisthe51single-chipcomputerwithamodelofSTC90C516,throughthesingle-chipmicrocomputercontrold/aconversionDAC0832chipoutputreferencevoltagestabilizedvoltagesupply,thenthroughtwostageamplifieroutputtoadjustthetubevoltage,con
5、trollingtheoutputvoltage.Thenumericalcontrolpowersupplycanberealizedthroughthecoarseandfinethevoltageofthedifferentamplitudebetween0-10voutput,alsosetup+3vand+5vvoltagesettingbutton,soastorealizetherapidcommonlyusedvoltagesettings.ThedesignadoptstheLCD1602L
6、CDdisplayingthesettingvoltageandtheactualvoltageofthepoweroutput,convenientforobservationandsettings.InthedesignofthepowersystemhascarriedontheProteussimulation,cooperatedwithKeiluVision4softwareapplication,togetsatisfactorysimulationresults.Inaddition,then
7、umericalcontrolpowersupplyhasgoodanti-interferenceability,highreliability,easytoadjust,simpleoperation,theoutputvoltagevalueandthetrueshowsthatthecharacteristicofhighprecisionvoltagevalue.KEYWORDS:numericalcontroldcregulatedpowersupply,STC90C516,digital-to-
8、analog,theProteussimulation,LCD1602目 录前 言1第1章数控电源概述21.1设计的依据与意义21.2国内外数控电源概况21.3设计的内容31.4设计方法4第2章设计方案与论证52.1设计方案52.1.1方案一52.1.2方案二52.2方案比较与论证62.2.1数控部分62.2.2输出部分62.2.3显示部分7第3章硬件电路设计83.1电源供电电路模块83.2主控电路