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[17.4] OrCAD PSpice Walk-through: Probes and Simulation

July 10, 2020 Shannon Henry

This PSpice tutorial demonstrates how to setup a PSpice simulation. After you complete this tutorial, you will be able to:

  • Perform bias point and DC sweep simulations
  • Add traces to a plot
  • Add voltage probes to the circuit

If you would like to follow along with this tutorial, you can visit our walk-through page to view video tutorials and download design files.

To follow the instructions presented in this tutorial, continue using the design you completed in PSpice Walk-through 3 or use the design file, PSpice Walk-through 4_Probes and Simulations.

  1. Double click on 0VDC of V1.
  2. Change the value to 5V and click OK.
  3. Select PSpice > New Simulation Profile from the menu.
  4. Name the Simulation Profile Bias_Point and click Create.

Note: The Inherit From drop list provides the ability to create a new simulation from scratch or copy a simulation profile from another project. Setting Inherit From as None will create a new simulation with default settings.

  1. In the Analysis Type drop-down, select Bias Point and click OK.

Note: Bias Point Simulation show values of voltage, current and power in your circuit at a bias point.

  1. Select PSpice > Run from the menu.

Note: This will invoke the PSpice A/D Window. A bias point simulation will not show anything in this window.

  1. Back in the schematic, use the Enable Bias Display buttons on the toolbar or select PSpice > Bias Points to view the values for Voltage, Current, and Power.
  2. Select PSpice > New Simulation Profile from the menu.
  3. Name the Simulation Profile DC_Sweep and click Create.
  4. In the Analysis Type drop-down, select DC Sweep.

  1. Set the Sweep Variable as Voltage Source and assign V1 for the name.
  2. Set the Sweep Type to Linear.
  3. Set the Start Value to 0.
  4. Set the End Value to 10.
  5. Set the Increment to 1.
  6. Click OK.
  7. Select PSpice > Run from the menu.

Note: The PSpice A/D window is blank as no probes were placed in the schematic.

  1. In the PSpice A/D window, select Trace > Add Trace from the menu (Insert).

  1. In Simulation Output Variables, select V(input) and V(output). Click OK.

  1. View the PSpice A/D window and Close.
  2. In the schematic, select the Voltage Probe button on the toolbar or select PSpice > Markers > Voltage Level from the menu.

  1. Click to place a probe at the Input and Output.
  2. Select PSpice > Run from the menu.
  3. View the PSpice A/D Window.
  4. Back in the schematic, select the probes and press Delete.

Note: Simulation profiles can be toggled by using the drop-down in the simulation toolbar.

 

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