PSPICE 计算机仿真 Simulation Program with Integrated Circuit Emphasis

Preface

Focus 学会绘制电路原理图，并会仿真 ; 学会基本电路模型的够造 : 运算放大器（ Operational Amplifiers ） 变压器（ transformers ）

Discuss Dc analysis 直流分析 Transient analysis 暂态分析 Steady-state sinusoidal analysis 正弦稳态分析 Fourier series analysis 傅立叶分析

CH1: A FIRST LOOK AT PSPICE PSpice 简介 CH2: SIMPLE DC CIRCUITS 简单直流分析 CH3: DC SWEEP ANALYSIS 直流扫描分析 CH4: ADDITIONAL DC ANALYSIS 附加直流分析 CH5: OPERATIONAL AMPLIFIER 运算放大器 CH6: INDUCTORS, CAPACITORS, AND NATURAL RESPONSE 电感、电容及其响应 CH7: THE STEP RESPONSE AND SWITCHES 阶跃响应

CH8: VARYING COMPONENT VALUES 修改元件值 CH9: SINUSOIDAL STEADY-STATE ANALYSIS 正弦稳态分析 CH10: LINEAR AND IDEAL TRANSFORMERS 线性理想变压器 CH11: COMPUTING AC POWER WITH PROBE 用 PROBE 计算交流电源电路 CH12: FREQUENCY RESPONSE 频率响应 CH13: FOURIER SERIES 傅立叶级数

CH1: A FIRST LOOK AT PSPICE PSpice 简介

Three steps: Drawing the circuit 绘制电路图 Specifying the type of circuit analysis 定义分析类型 Simulation Results 查看仿真结果

1.1 Drawing the circuit File->New->Project Place->Part 元件旋转 CTRL+R 结束放置 Right click/End Mode Place->Wire

Scale factors F1E-15 P1E-12 N1E-9 U1E-6 M1E-3 K1E3 MEG1E6 G1E9 T1E12

1.2 SPECIFYING THE TYPE OF CIRCUIT ANALYSIS PSpice->New Simulation Profile Name: your_file_name Analysis type: Bias point Pspice->Run

1.3 Simulation Results View->Output File

CH2 SIMPLE DC CIRCUITS 简单直流电路

2.1 Independent DC Sources 电流源 电压源

2.2 Dependent DC Sources Voltage-controlled sources Voltage-controlled voltage sourceE Voltage-controlled current sourceG Current-controlled sources Current-controlled voltage sourceH Current-controlled current sourceF

2.3

Fig.23 Circuit for Example 1

Example 1 a) Use PSpice to find the voltages Va and Vb for the circuit shown in Fig.23

b) Use the PSpice solutions to calculate: 1)The total power dissipated in the circuit 2)The power supplied by the independent current source 3)The power supplied by the current- controlled voltage source

Fig. 24

Fig. 25 output file

注意事项 : H( 电流控制电压源 ) 属性 : 265/13= ( 不能用分数表示 !)

Q: Why does the PSpice output in Fig.25 give the total power dissipation as 0 W? A: In PSpice, the total power represents the net power generated by the independent voltage sources in the circuit. If a dependent source or an independent current source is generating power, its value is not included.

Solution a) From the PSpice output: Va =104.00V Vb =106.00V

Solution b) 1)

2) P 24A (supplied)=104(24)=2496W 3) P H1 (supplied)=106(2)=212W P(supplied)= =2708W Note that the sum of power dissipated equals the sum of power supplied.