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1、目錄摘要.................................................................................IAbstract..............................................................................II1緒論...........................................

2、......................................11.1電子負(fù)載概述...................................................................11.2電子負(fù)載研究現(xiàn)狀...............................................................11.3電子負(fù)載的工作方式.................

3、............................................31.3.1恒定電流工作方式.........................................................31.3.2恒定電壓工作方式.........................................................31.3.3恒定電阻工作方式....................

4、.....................................41.4主要研究?jī)?nèi)容...................................................................42大功率電子負(fù)載主電路設(shè)計(jì).............................................................52.1電子負(fù)載模擬原理...................

5、............................................52.2系統(tǒng)方案設(shè)計(jì)...................................................................62.3主電路設(shè)計(jì).....................................................................83電子負(fù)載硬件設(shè)計(jì)...........

6、.........................................................103.1單片機(jī)選型....................................................................103.2電源模塊......................................................................123.3A

7、D轉(zhuǎn)換模塊...................................................................123.4顯示模塊......................................................................143.5采樣模塊............................................................

8、..........153.5.1電壓采樣................................................................153.5.2電流采樣................................................................153.5.3集成運(yùn)放設(shè)計(jì)...............................................

9、.............163.6IGBT功率驅(qū)動(dòng)模塊..............................................................184系統(tǒng)軟件設(shè)計(jì)........................................................................204.1匯編語(yǔ)言設(shè)計(jì)與Keil開(kāi)發(fā)軟件.............................

10、......................204.2ADC0809模數(shù)轉(zhuǎn)換子程序設(shè)計(jì).....................................................214.3顯示子程序設(shè)計(jì)................................................................224.4電子負(fù)載程序設(shè)計(jì)流程圖................................

11、........................22總結(jié)與展望............................................................................25參考文獻(xiàn)..............................................................................26附錄1:控制電路圖..................

12、...................................................27附錄2:電子負(fù)載設(shè)計(jì)程序...............................................................28致謝................................................................................36Abstra

13、ctInthe21stcenturywiththepowerelectronicstechnologycomputertechnologyautomaticcontroltechnologytherapiddevelopmentofdetectiontechnologytopowerhasbroughtarevolutionarychange.Tomeettheincreasingawarenessofthepowertestingre

14、quirementsofthenewelectronicloadhasbeengraduallyreplacingthetraditionalpowerdetectiontechnologyusedinvariousrealms.Thecontentofthisthesisisthedesignofelectronicloadresearch.Thispaperfirstprincipleoftheelectronicloadcontr

15、olthewaytheconcreteelabationanalysisofseveraldifferentelectronicloadsystemdesign.ThefinalchoicetotheAT89S51microcontrollerasthecontrolcenterthedesignofelectronicconstantcurrentmodeloadthatisnomatterhowthechangeinvoltagef

16、lowthroughtheelectronicloadcurrentconstantthecurrentvaluecanbeset.HardwaredesignsystemincludesthecontrolcircuitspowerdrivercircuitsamplingcircuitADconvertercircuitdisplaycircuitothermodulescandetectthecurrentvalueoftheme

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