pspice PSpice_ch3

PSPICE计算机仿真 SimulationProgramwithIntegratedCircuitEmphasis CH3 DCSWEEPANALYSIS直流扫描分析 3 1Sweepingasinglesource Fig 26 Example2 ForthecircuitshowninFig 26 usePSpicetofindthevaluesofioandvowhenvgvariesfrom0to100Vin10Vsteps P22 Fig 27 Place Part Analoglib RSourcelib Vsrc IsrcSpeciallib Iprint ammeter安培表 Speciallib Vprint2 voltmeter伏特表 注意事项 Vsrc元件 参数不需要改动Isrc元件 选中Isrc元件 粉色表示被选中 Edit Properties 修改DC项 5 如图27a Fig 27a修改Isrc属性 Iprint元件需要执行Mirror操作 选中Iprint元件 粉色表示被选中 Edit Mirror HorizontallyH执行Mirror操作Edit Properties 修改DC项 Y 如图28 Fig 28修改Iprint属性 Vprint2元件需要执行Mirror操作 选中Vprint2元件 粉色表示被选中 Edit Mirror HorizontallyH执行Mirror操作Edit Properties 修改DC项 Y 如图28a Fig 28a修改Vprint2属性 Fig 29SimulationSettingsdialog WhatdoesProbedo WecanalsodepicttheresultsoftheDCSweepanalysisgraphically usingProbe PSpice Run 如图29a View Outputfile 如图30 Fig 29aProbe窗口 Fig 30Outputfile Trace AddTrace Fig 31 注意 TraceExpression V2 R1 Fig 31Selectingavariable V2 R1 Fig 32theresultingplot 3 2SweepMultipleSources Example3 ThecurrentsourceinthecircuitshowninFig 26variesfrom0to5Ain1Asteps Foreachvalueofthesourcevoltage ploti0asvgvariesfrom0to100Vinstepsof20V Solution TheschematicisthesameastheoneinFig 27 InCapture selectthemenuoptionPSpice EditSimulationSettingstospecifyaSecondarySweep theadditionalsweepvariableanditsvaluesFig 33 Fig 33SimulationSettingsdialog2 WealsochangedtheincrementinthePrimarySweepfrom10Vto20V Fig 33a Fig 33aSimulationSettingsdialog1 Trace AddTrace Fig 33b 注意 TraceExpression I R4 F