PSPICE 计算机仿真 - PowerPoint PPT Presentation

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PSPICE 计算机仿真

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  1. PSPICE计算机仿真 Simulation Program with Integrated Circuit Emphasis

  2. Preface

  3. 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)

  4. 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

  5. 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

  6. 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

  7. CH1: A FIRST LOOK AT PSPICE PSpice简介

  8. 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

  9. 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

  10. F 1E-15 P 1E-12 N 1E-9 U 1E-6 M 1E-3 K 1E3 MEG 1E6 G 1E9 T 1E12 Scale factors

  11. 1.2 SPECIFYING THE TYPE OF CIRCUIT ANALYSIS • PSpice->New Simulation Profile • Name: your_file_name • Analysis type: Bias point • Pspice->Run

  12. 1.3 Simulation Results • View->Output File

  13. CH2 SIMPLE DC CIRCUITS 简单直流电路

  14. 2.1 Independent DC Sources • 电流源 • 电压源

  15. 2.2 Dependent DC Sources • Voltage-controlled sources • Voltage-controlled voltage source E • Voltage-controlled current source G • Current-controlled sources • Current-controlled voltage source H • Current-controlled current source F

  16. 2.3

  17. Fig.23 Circuit for Example 1

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

  19. 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

  20. Fig. 24

  21. Fig. 25 output file

  22. 注意事项: • H(电流控制电压源)属性: • 265/13=20.3846(不能用分数表示!)

  23. 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.

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

  25. Solution b) • 1)

  26. 2) P24A(supplied)=104(24)=2496W • 3) PH1(supplied)=106(2)=212W • P(supplied)=2496+212=2708W • Note that the sum of power dissipated equals the sum of power supplied.