電子負載的設計與研究

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

2、......................................11.1電子負載概述...................................................................11.2電子負載研究現狀...............................................................11.3電子負載的工作方式.................

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主要研究內容...................................................................42大功率電子負載主電路設計.............................................................52.1電子負載模擬原理...................

5、............................................52.2系統(tǒng)方案設計...................................................................62.3主電路設計.....................................................................83電子負載硬件設計...........

6、.........................................................103.1單片機選型....................................................................103.2電源模塊......................................................................123.3A

7、D轉換模塊...................................................................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集成運放設計...............................................

9、.............163.6IGBT功率驅動模塊..............................................................184系統(tǒng)軟件設計........................................................................204.1匯編語言設計與Keil開發(fā)軟件.............................

10、......................204.2ADC0809模數轉換子程序設計.....................................................214.3顯示子程序設計................................................................224.4電子負載程序設計流程圖................................

11、........................22總結與展望............................................................................25參考文獻..............................................................................26附錄1：控制電路圖..................

12、...................................................27附錄2：電子負載設計程序...............................................................28致謝................................................................................36Abstra

13、ctInthe21stcenturywiththepowerelectronicstechnologycomputertechnologyautomaticcontroltechnologytherapiddevelopmentofdetectiontechnologytopowerhasbroughtarevolutionarychange.Tomeettheincreasingawarenessofthepowertestingre

14、quirementsofthenewelectronicloadhasbeengraduallyreplacingthetraditionalpowerdetectiontechnologyusedinvariousrealms.Thecontentofthisthesisisthedesignofelectronicloadresearch.Thispaperfirstprincipleoftheelectronicloadcontr

15、olthewaytheconcreteelabationanalysisofseveraldifferentelectronicloadsystemdesign.ThefinalchoicetotheAT89S51microcontrollerasthecontrolcenterthedesignofelectronicconstantcurrentmodeloadthatisnomatterhowthechangeinvoltagef

16、lowthroughtheelectronicloadcurrentconstantthecurrentvaluecanbeset.HardwaredesignsystemincludesthecontrolcircuitspowerdrivercircuitsamplingcircuitADconvertercircuitdisplaycircuitothermodulescandetectthecurrentvalueoftheme