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  • 1. ELEC 101 Lab 5
  • 2. Lab 05 Objectives •  The student will be able to –  Open an existing project –  Create a new simulation profile –  Run a simulation and view the Probe output –  Modify the Probe ranges and grids for the X Axis and Y Axis –  Create a new project –  Create a new simulation for Bias Point Analysis –  Configure the schematic to display node voltages and branch currents February 2004 ELEC 101 Lab 5 2
  • 3. Lab 5A Probe Window Output
  • 4. Lab 5A Requirements •  Open Circuit from Disk •  Create a New Simulation Profile for AC Sweep Analysis •  Place a ground referenced VDB Marker •  Run the simulation •  View Probe Output •  Change the X Axis grid markers to make readings more accurate •  View Probe Output and make further modifications if desired February 2004 ELEC 101 Lab 5 4
  • 5. Lab 5A Schematic February 2004 ELEC 101 Lab 5 5
  • 6. Lab 05A Create New Simulation Profile CL on PSpice CL on New Simulation Profile February 2004 ELEC 101 Lab 5 6
  • 7. Settings for New Simulation Profile February 2004 ELEC 101 Lab 5 7
  • 8. Select Desired Marker for Probe Output February 2004 ELEC 101 Lab 5 8
  • 9. Place VDB Voltage Probe at OUT February 2004 ELEC 101 Lab 5 9
  • 10. Run the Simulation On the PSpice Toolbar, CL on the Run Button February 2004 ELEC 101 Lab 5 10
  • 11. Lab 05A Probe Output X-Axis is not a linear scale. Reading frequencies is not accurate February 2004 ELEC 101 Lab 5 11
  • 12. Changing X Axis Grid CL on Plot CL on Axis Settings February 2004 ELEC 101 Lab 5 12
  • 13. Modify X Grid Intervals CL on the X Grid Tab Turn off Automatic and select 10 for Minor February 2004 ELEC 101 Lab 5 13
  • 14. Revised Lab05A Probe Output The increased number of x axis markers makes the graph easier to read February 2004 ELEC 101 Lab 5 14
  • 15. Lab 5B Probe Output Modification Add Traces
  • 16. Lab 5B Schematic February 2004 ELEC 101 Lab 5 16
  • 17. Probe Output for Transient Analysis February 2004 ELEC 101 Lab 5 17
  • 18. Change the Y Axis Range February 2004 ELEC 101 Lab 5 18
  • 19. Modified Probe Output February 2004 ELEC 101 Lab 5 19
  • 20. Add a Plot on the Top of the Current One February 2004 ELEC 101 Lab 5 20
  • 21. Probe Output with Additional Plot Window February 2004 ELEC 101 Lab 5 21
  • 22. Select Add Trace from the Trace Menu February 2004 ELEC 101 Lab 5 22
  • 23. Select the Waveform to Plot – VIN February 2004 ELEC 101 Lab 5 23
  • 24. Revised Probe Output We can readily compare the relationship between the input waveform and the output current February 2004 ELEC 101 Lab 5 24
  • 25. Lab 5C Bias Point Calculation
  • 26. Lab 05C Overview •  In some cases we wish to determine an operating point –  this is called the Bias Point •  When Bias Point Simulation is performed in PSpice, it does not generate a Probe Output because no component values are swept. •  After running the simulation, close the probe Window and Select V or I from the toolbar to have Capture display all node voltages or all the branch currents. •  The student will Place a Net Alias (special text inserted in the schematic) to identify nodes of particular interest February 2004 ELEC 101 Lab 5 26
  • 27. Lab 05C Schematic February 2004 ELEC 101 Lab 5 27
  • 28. Lab 05C Add Net Alias CL on PSpice CL on Net Alias Type Net Alias text in the Alias box and CL on OK February 2004 ELEC 101 Lab 5 28
  • 29. Lab 05C Schematic February 2004 ELEC 101 Lab 5 29
  • 30. Bias Point Selection February 2004 ELEC 101 Lab 5 30
  • 31. Lab 05C Schematic with Node Voltages February 2004 ELEC 101 Lab 5 31
  • 32. Lab 5A Printed Output for Submission
  • 33. Place VDB Voltage Probe at OUT February 2004 ELEC 101 Lab 5 33
  • 34. Revised Lab05A Probe Output The increased number of x axis markers makes the graph easier to read February 2004 ELEC 101 Lab 5 34
  • 35. Lab 5B Printed Output for Submission
  • 36. Lab 5B Schematic February 2004 ELEC 101 Lab 5 36
  • 37. Revised Probe Output We can readily compare the relationship between the input waveform and the output current February 2004 ELEC 101 Lab 5 37
  • 38. Lab 5C Printed Output for Submission
  • 39. Lab 05C Output February 2004 ELEC 101 Lab 5 39