课件 第二讲 PSPICE模拟电路仿真分析

1、 Harbin University of Science and Technology 电路计算机辅助设计电路计算机辅助设计 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创建电

2、路指定仿真类型观察结果SPICE仿真的基本步骤仿真的基本步骤 Harbin University of Science and Technology OrCAD符号符号比例因子比例因子名称名称F10-15飞，飞，femtoP10-12皮，皮，picoN10-9纳，纳，nanoU10-6微，微，microMIL25.410-6密尔，密尔，milM10-3毫，毫，milliK103千，千，kiloMEG106兆，兆，megaG109吉，吉，gigaT1012太，太，tera时间：时间：S，秒，秒电流：电流：A，安培，安培电压：电压：V,伏伏频率：频率：Hz,赫兹赫兹电阻：电阻： ，欧姆，欧姆电容：

3、电容：F,法拉法拉电感：电感：H,亨利亨利功率：功率：W,瓦特瓦特注意单位问题注意单位问题 Harbin University of Science and Technology OrCADSPICE仿真实例仿真实例R110kC14.7ufV11Vac0Vdc 利用利用SPICESPICE仿真如下电路，体会仿真如下电路，体会SPICESPICE流程。流程。 Harbin University of Science and Technology OrCAD 新建一个仿真模型新建一个仿真模型 Harbin University of Science and Technology OrCAD 仿真模

4、型名称设定：仿真模型名称设定： Harbin University of Science and Technology OrCAD设置基本分设置基本分析类型析类型设置其他分设置其他分析类型析类型 设置分析参设置分析参数数设置分析参设置分析参数数 Harbin University of Science and Technology OrCAD模拟分析计算：模拟分析计算： Harbin University of Science and Technology OrCAD Harbin University of Science and Technology OrCAD2.2 2.2 直流工作点分

5、析直流工作点分析 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 直流灵敏度分析（直流灵敏度分析（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 直流传输特性分析直流传输特性分析 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 直流特性扫描分析（直流特性扫描分析（DC SweepDC Sweep） Harbin University of Science and Technology OrCAD Start0Start0、EndEnd、PointsPoints（点数）（点数）LogarithmicLogarithmic：（对数变化）（对数变化） Harbi

8、n University of Science and Technology OrCAD Harbin University of Science and Technology OrCAD自变量参数自变量参数扫瞄方式扫瞄方式 Harbin University of Science and Technology OrCAD Harbin University of Science and Technology OrCAD Harbin University of Science and Technology OrCAD2.62.6交流小信号频率特性分析交流小信号频率特性分析(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自变量参数自变量参数扫描方式扫描方式 Harbin University of Science and Technology OrCAD Harbin University of Science and Technology OrCAD2.7 2.7 瞬态特性分析（瞬态特性分析（

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）脉冲信号（）脉冲信号（PulsePulse） 参数参数名称名称单位单位内定值内定值V1V1起始电压起始电压伏特伏特无内定值无内定值V2V2脉冲电压脉冲电压伏特伏特无内定值无内定值PerPer脉冲周期脉冲周期秒秒TSTO

11、PTSTOPPwPw脉冲宽度脉冲宽度秒秒TSTOPTSTOPtdtd延迟时间延迟时间秒秒0 0tftf下降时间下降时间秒秒TSTEPTSTEPtrtr上升时间上升时间秒秒TSTEPTSTEP Harbin University of Science and Technology OrCAD Harbin University of Science and Technology OrCAD2 2）分段线性信号）分段线性信号PWLPWL时间时间脉冲电平脉冲电平t1t1v1v1t2t2v2v2t3t3v3v3t4t4v4v4t5t5v5v5 t6 t6 v6v6t7t7v7v7t8t8v8v8 Ha

12、rbin University of Science and Technology OrCAD Harbin University of Science and Technology 3 3）调幅正弦信号）调幅正弦信号SINSIN参数参数名称名称单位单位内定值内定值voffvoff偏置值偏置值伏特伏特无内定值无内定值vamplvampl峰值振幅峰值振幅伏特伏特无内定值无内定值freqfreq频率频率赫兹赫兹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延迟时间延迟时间秒秒0 0 Harbin University of Sc

13、ience and Technology Harbin University of Science and Technology 4 4）调频信号）调频信号SFFMSFFM参数参数含义含义单位单位内定值内定值VoffVoff偏值电压偏值电压伏特伏特无内定值无内定值VamplVampl峰值振幅峰值振幅伏特伏特无内定值无内定值fcfc载频载频赫兹赫兹1/TSTOP1/TSTOPfmfm调制频率调制频率赫兹赫兹1/TSTOP1/TSTOPmodmod调制因子调制因子0 0 Harbin University of Science and Technology Harbin University of

14、 Science and Technology 5 5）指数信号）指数信号EXPEXP参数参数名称名称单位单位内定值内定值v1v1起始电压起始电压伏特伏特无内定值无内定值v2v2峰值电压峰值电压伏特伏特无内定值无内定值td1td1上升（下降）延迟上升（下降）延迟秒秒0 0tc1tc1上升（下降）时常上升（下降）时常数数秒秒TSTEPTSTEPtd2td2下降（上升）延迟下降（上升）延迟秒秒Td1Td1TSTEPTSTEPtc2tc2下降（上升）时常下降（上升）时常数数秒秒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 静态工作点在截止区静态工作点在截止区 Harbin University of Science and Technology 静态工作点在饱和区静态工作点在饱和区 Harbin University of Science and Technology 静态工作点在放大区静态工作点在放大区 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 傅立叶分析（傅立叶分析（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 温度分析温度分析(Temperature Analysis)(Temperature Analysis) Harbin University of Science and Technology 2.2.参数设置参数设置 Harbin University of Science and Technology Harbi

18、n University of Science and Technology Harbin University of Science and Technology Ic(Q1)随温度变化曲线随温度变化曲线 Harbin University of Science and Technology Harbin University of Science and Technology Harbin University of Science and Technology 电压增益随温度变化曲线电压增益随温度变化曲线 Harbin University of Science and Technolo

19、gy 2.11 2.11 参数扫描分析参数扫描分析(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