課件 第二講 PSPICE模擬電路仿真分析

1、 Harbin University of Science and Technology 電路計算機輔助設計電路計算機輔助設計 OrCAD Harbin University of Science and Technology OrCAD第二章第二章 PSPICEPSPICE仿真分析仿真分析 Harbin University of Science and Technology OrCAD什么是什么是SPICE？SPICE功能功能 Harbin University of Science and Technology OrCAD2.1 PSPICE2.1 PSPICE仿真的流程仿真的流程創(chuàng)建電

2、路指定仿真類型觀察結(jié)果SPICE仿真的基本步驟仿真的基本步驟 Harbin University of Science and Technology OrCAD符號符號比例因子比例因子名稱名稱F10-15飛，飛，femtoP10-12皮，皮，picoN10-9納，納，nanoU10-6微，微，microMIL25.410-6密爾，密爾，milM10-3毫，毫，milliK103千，千，kiloMEG106兆，兆，megaG109吉，吉，gigaT1012太，太，tera時間：時間：S，秒，秒電流：電流：A，安培，安培電壓：電壓：V,伏伏頻率：頻率：Hz,赫茲赫茲電阻：電阻： ，歐姆，歐姆電容：

3、電容：F,法拉法拉電感：電感：H,亨利亨利功率：功率：W,瓦特瓦特注意單位問題注意單位問題 Harbin University of Science and Technology OrCADSPICE仿真實例仿真實例R110kC14.7ufV11Vac0Vdc 利用利用SPICESPICE仿真如下電路，體會仿真如下電路，體會SPICESPICE流程。流程。 Harbin University of Science and Technology OrCAD 新建一個仿真模型新建一個仿真模型 Harbin University of Science and Technology OrCAD 仿真模

4、型名稱設定：仿真模型名稱設定： Harbin University of Science and Technology OrCAD設置基本分設置基本分析類型析類型設置其他分設置其他分析類型析類型 設置分析參設置分析參數(shù)數(shù)設置分析參設置分析參數(shù)數(shù) Harbin University of Science and Technology OrCAD模擬分析計算：模擬分析計算： Harbin University of Science and Technology OrCAD Harbin University of Science and Technology OrCAD2.2 2.2 直流工作點分

5、析直流工作點分析 Harbin University of Science and Technology OrCAD Harbin University of Science and Technology OrCAD Harbin University of Science and Technology OrCAD Harbin University of Science and Technology OrCAD Harbin University of Science and Technology OrCAD2.3 2.3 直流靈敏度分析（直流靈敏度分析（DC SentivityDC Sen

6、tivity） Harbin University of Science and Technology OrCAD Harbin University of Science and Technology OrCAD Harbin University of Science and Technology OrCAD Harbin University of Science and Technology OrCAD2.4 2.4 直流傳輸特性分析直流傳輸特性分析 Harbin University of Science and Technology OrCAD Harbin University

7、of Science and Technology OrCAD Harbin University of Science and Technology Harbin University of Science and Technology OrCAD2.5 2.5 直流特性掃描分析（直流特性掃描分析（DC SweepDC Sweep） Harbin University of Science and Technology OrCAD Start0Start0、EndEnd、PointsPoints（點數(shù)）（點數(shù)）LogarithmicLogarithmic：（對數(shù)變化）（對數(shù)變化） Harbi

8、n University of Science and Technology OrCAD Harbin University of Science and Technology OrCAD自變量參數(shù)自變量參數(shù)掃瞄方式掃瞄方式 Harbin University of Science and Technology OrCAD Harbin University of Science and Technology OrCAD Harbin University of Science and Technology OrCAD2.62.6交流小信號頻率特性分析交流小信號頻率特性分析(AC Sweep)

9、(AC Sweep) Harbin University of Science and Technology OrCAD Harbin University of Science and Technology OrCAD Harbin University of Science and Technology OrCAD自變量參數(shù)自變量參數(shù)掃描方式掃描方式 Harbin University of Science and Technology OrCAD Harbin University of Science and Technology OrCAD2.7 2.7 瞬態(tài)特性分析（瞬態(tài)特性分析（

10、Transient AnalysisTransient Analysis） Harbin University of Science and Technology OrCAD Harbin University of Science and Technology OrCAD Harbin University of Science and Technology OrCAD1 1）脈沖信號（）脈沖信號（PulsePulse） 參數(shù)參數(shù)名稱名稱單位單位內(nèi)定值內(nèi)定值V1V1起始電壓起始電壓伏特伏特無內(nèi)定值無內(nèi)定值V2V2脈沖電壓脈沖電壓伏特伏特無內(nèi)定值無內(nèi)定值PerPer脈沖周期脈沖周期秒秒TSTO

11、PTSTOPPwPw脈沖寬度脈沖寬度秒秒TSTOPTSTOPtdtd延遲時間延遲時間秒秒0 0tftf下降時間下降時間秒秒TSTEPTSTEPtrtr上升時間上升時間秒秒TSTEPTSTEP Harbin University of Science and Technology OrCAD Harbin University of Science and Technology OrCAD2 2）分段線性信號）分段線性信號PWLPWL時間時間脈沖電平脈沖電平t1t1v1v1t2t2v2v2t3t3v3v3t4t4v4v4t5t5v5v5 t6 t6 v6v6t7t7v7v7t8t8v8v8 Ha

12、rbin University of Science and Technology OrCAD Harbin University of Science and Technology 3 3）調(diào)幅正弦信號）調(diào)幅正弦信號SINSIN參數(shù)參數(shù)名稱名稱單位單位內(nèi)定值內(nèi)定值voffvoff偏置值偏置值伏特伏特無內(nèi)定值無內(nèi)定值vamplvampl峰值振幅峰值振幅伏特伏特無內(nèi)定值無內(nèi)定值freqfreq頻率頻率赫茲赫茲1/TSTOP1/TSTOPphasephase相位相位度度0 0dfdf阻尼因子阻尼因子1/1/秒秒0 0tdtd延遲時間延遲時間秒秒0 0 Harbin University of Sc

13、ience and Technology Harbin University of Science and Technology 4 4）調(diào)頻信號）調(diào)頻信號SFFMSFFM參數(shù)參數(shù)含義含義單位單位內(nèi)定值內(nèi)定值VoffVoff偏值電壓偏值電壓伏特伏特無內(nèi)定值無內(nèi)定值VamplVampl峰值振幅峰值振幅伏特伏特無內(nèi)定值無內(nèi)定值fcfc載頻載頻赫茲赫茲1/TSTOP1/TSTOPfmfm調(diào)制頻率調(diào)制頻率赫茲赫茲1/TSTOP1/TSTOPmodmod調(diào)制因子調(diào)制因子0 0 Harbin University of Science and Technology Harbin University of

14、 Science and Technology 5 5）指數(shù)信號）指數(shù)信號EXPEXP參數(shù)參數(shù)名稱名稱單位單位內(nèi)定值內(nèi)定值v1v1起始電壓起始電壓伏特伏特無內(nèi)定值無內(nèi)定值v2v2峰值電壓峰值電壓伏特伏特無內(nèi)定值無內(nèi)定值td1td1上升（下降）延遲上升（下降）延遲秒秒0 0tc1tc1上升（下降）時常上升（下降）時常數(shù)數(shù)秒秒TSTEPTSTEPtd2td2下降（上升）延遲下降（上升）延遲秒秒Td1Td1TSTEPTSTEPtc2tc2下降（上升）時常下降（上升）時常數(shù)數(shù)秒秒TSTEPTSTEP Harbin University of Science and Technology Harbin

15、University of Science and Technology Harbin University of Science and Technology Harbin University of Science and Technology 靜態(tài)工作點在截止區(qū)靜態(tài)工作點在截止區(qū) Harbin University of Science and Technology 靜態(tài)工作點在飽和區(qū)靜態(tài)工作點在飽和區(qū) Harbin University of Science and Technology 靜態(tài)工作點在放大區(qū)靜態(tài)工作點在放大區(qū) Harbin University of Science a

16、nd Technology Harbin University of Science and Technology Harbin University of Science and Technology Harbin University of Science and Technology Harbin University of Science and Technology Harbin University of Science and Technology 2.9 2.9 傅立葉分析（傅立葉分析（Fourier AnalysisFourier Analysis） Harbin Unive

17、rsity of Science and Technology Harbin University of Science and Technology OrCAD Harbin University of Science and Technology OrCAD2.10 2.10 溫度分析溫度分析(Temperature Analysis)(Temperature Analysis) Harbin University of Science and Technology 2.2.參數(shù)設置參數(shù)設置 Harbin University of Science and Technology Harbi

18、n University of Science and Technology Harbin University of Science and Technology Ic(Q1)隨溫度變化曲線隨溫度變化曲線 Harbin University of Science and Technology Harbin University of Science and Technology Harbin University of Science and Technology 電壓增益隨溫度變化曲線電壓增益隨溫度變化曲線 Harbin University of Science and Technolo

19、gy 2.11 2.11 參數(shù)掃描分析參數(shù)掃描分析(Parametric (Parametric Analysis)Analysis) Harbin University of Science and Technology Harbin University of Science and Technology Harbin University of Science and Technology Harbin University of Science and Technology Harbin University of Science and Technology Rl5.1kRlRval Harbin University of Science and Technolo