1. Sld 1 Chabot College Engineering Bruce Mayer, PE BMayer@ChabotCollege.edu PSPICE_Install-n-DC_1101 Chabot College Engineering 43 SPICE Circuit Simulation Simulation Program with Integrated Circuit Emphasis Bruce Mayer, PE Licensed Electrical & Mechanical Engineer BMayer@ChabotCollege.edu

2. Sld 2 Chabot College Engineering Bruce Mayer, PE BMayer@ChabotCollege.edu PSPICE_Install-n-DC_1101 PSPICE Transient Analysis Circuit to Simulate  TextBook Fig. 7.25 Two New Parts –Switch –Capacitor Place Vs, GND, R Now Install Cap Using –Draw –Get New Part…

3. Sld 3 Chabot College Engineering Bruce Mayer, PE BMayer@ChabotCollege.edu PSPICE_Install-n-DC_1101 Get Cap Part Place, Flip, Twist, and Set Value NOT Case Sensitive

4. Sld 4 Chabot College Engineering Bruce Mayer, PE BMayer@ChabotCollege.edu PSPICE_Install-n-DC_1101 Get Switch Part Double Click Turn Off Accept Defaults

5. Sld 5 Chabot College Engineering Bruce Mayer, PE BMayer@ChabotCollege.edu PSPICE_Install-n-DC_1101 Set Cap Initial Condition (IC) Just as in MATLAB SimuLink, the Initial Condition MUST be Specified. Set the CAP Initial Voltage v c (0 − ) = v c (0 + ) PIN-Numbers and Current Directions –Current is ASSUMED to ENTER at Pin-1 within SPICE MUST Enter IC Value –To REVERSE a Current Direction use “Rotate” Twice to Affect a 180° Twist

6. Sld 6 Chabot College Engineering Bruce Mayer, PE BMayer@ChabotCollege.edu PSPICE_Install-n-DC_1101 SET UP T TT Transient Simulation Click

7. Sld 7 Chabot College Engineering Bruce Mayer, PE BMayer@ChabotCollege.edu PSPICE_Install-n-DC_1101 PROBE Window Simulate the Circuit Time-Based Graph Window Simulating the Circuit AUTOmatically Opens the PROBE Window –See 

8. Sld 8 Chabot College Engineering Bruce Mayer, PE BMayer@ChabotCollege.edu PSPICE_Install-n-DC_1101 Add TRACE to PROBE Graph Turn OFF

9. Sld 9 Chabot College Engineering Bruce Mayer, PE BMayer@ChabotCollege.edu PSPICE_Install-n-DC_1101 Add SECOND Y-Axis DOUBLE-Click an Axis to “Activate” it for the Addition of the next Trace Marker for ACTIVE Axis

10. Sld 10 Chabot College Engineering Bruce Mayer, PE BMayer@ChabotCollege.edu PSPICE_Install-n-DC_1101 Activate V(C1:1) Axis Activate the Primary Axis used for v C (t) –Note change in Grid Horizontal GridLines apply to Active Axis which has a TRACE Associated with it

11. Sld 11 Chabot College Engineering Bruce Mayer, PE BMayer@ChabotCollege.edu PSPICE_Install-n-DC_1101 Add i c (t) to 2 nd Axis MUST Be Properly Filled-In

12. Sld 12 Chabot College Engineering Bruce Mayer, PE BMayer@ChabotCollege.edu PSPICE_Install-n-DC_1101 Add i c (t) to 2 nd Axis

13. Sld 13 Chabot College Engineering Bruce Mayer, PE BMayer@ChabotCollege.edu PSPICE_Install-n-DC_1101 Find Time Const using Cursor

14. Sld 14 Chabot College Engineering Bruce Mayer, PE BMayer@ChabotCollege.edu PSPICE_Install-n-DC_1101 HomeWork Presentation Paste Result –PasteSpecial  Enhanced MetaFile

15. Sld 15 Chabot College Engineering Bruce Mayer, PE BMayer@ChabotCollege.edu PSPICE_Install-n-DC_1101 ReCall Copy Model to ClipBoard

16. Sld 16 Chabot College Engineering Bruce Mayer, PE BMayer@ChabotCollege.edu PSPICE_Install-n-DC_1101 MSWord HW Example TWO Copy-n-Paste Operations –Model Mouse-Pointer Window- Select Copy to Clipboard Command Default Paste –Probe Simulation Plot Copy to Clipboard Command PasteSpecial  Enhanced MetaFile

17. Sld 17 Chabot College Engineering Bruce Mayer, PE BMayer@ChabotCollege.edu PSPICE_Install-n-DC_1101 P7-95modified 2.7 Ω2.2 Ω2.4 Ω 1.5 H1.2 Ω4.7 Ω 10V Pulse over t = 0 →1 second –0V OtherWise

18. Sld 18 Chabot College Engineering Bruce Mayer, PE BMayer@ChabotCollege.edu PSPICE_Install-n-DC_1101 Circuit and Input PulseBy Physics of L & C At DC (t = 0 − ) –L is SHORT –C is OPEN Then Ckt at t = 0 − P7-95  IC analysis +−+−

19. Sld 19 Chabot College Engineering Bruce Mayer, PE BMayer@ChabotCollege.edu PSPICE_Install-n-DC_1101 P7-95  IC analysis Examine the t = 0 − Circuit Construct SPICE ckt –Note that Isrc is SHORTED to GND, so +−+−

20. Sld 20 Chabot College Engineering Bruce Mayer, PE BMayer@ChabotCollege.edu PSPICE_Install-n-DC_1101 Cap Initial Condition v C (0 − ) = 0 Volts Ind Initial Condition i L (0 − ) = 2 Amps Set Initial Conditions (IC’s)

21. Sld 21 Chabot College Engineering Bruce Mayer, PE BMayer@ChabotCollege.edu PSPICE_Install-n-DC_1101 Add the V-Pulse Source The Ckt with “Standard” Parts Connected Need to Locate a Voltage-Pulse SOURE –Engage Get New Part and Libraries

22. Sld 22 Chabot College Engineering Bruce Mayer, PE BMayer@ChabotCollege.edu PSPICE_Install-n-DC_1101 Configure the V-Pulse Source The Ckt with Pulse-Part Open VPULSE Configuration DiaLog Box with DoubleClick –Consulting PSPICE Help on VPULSE is useful First voltage level 2nd voltage level

23. Sld 23 Chabot College Engineering Bruce Mayer, PE BMayer@ChabotCollege.edu PSPICE_Install-n-DC_1101 Configure the V-Pulse Source Delay Rise time Pulse Width

24. Sld 24 Chabot College Engineering Bruce Mayer, PE BMayer@ChabotCollege.edu PSPICE_Install-n-DC_1101 Realistic PulseIDEAL Pulse Configure the V-Source Pulse

25. Sld 25 Chabot College Engineering Bruce Mayer, PE BMayer@ChabotCollege.edu PSPICE_Install-n-DC_1101 (Oscope) PROBE MarkersThick PROBE Plot-Lines RIGHT-Click Plot-Line Cool Stuff: Marker, Thick Lines

26. Sld 26 Chabot College Engineering Bruce Mayer, PE BMayer@ChabotCollege.edu PSPICE_Install-n-DC_1101 P7-95 Solution  Final Model The Circuit Schematic/Model –Note the V-Probe Marker at v o (t)

27. Sld 27 Chabot College Engineering Bruce Mayer, PE BMayer@ChabotCollege.edu PSPICE_Install-n-DC_1101 P7-95 Solution (Ideal)

28. Sld 28 Chabot College Engineering Bruce Mayer, PE BMayer@ChabotCollege.edu PSPICE_Install-n-DC_1101 P7-95 Solution (Realistic) TD = 1.5s