PSpice User Guide

PSpice User Guide

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PSpice User Guide Simulation examples October 2019 127 Product Version 17.4-2019 © 1999-2019 All Rights Reserved. To see more information about the section that produced a specific trace, double-click the corresponding symbol in the legend below the x-axis. 2. Click the trace name to select it, then press Delete to remove the traces shown. You can also remove the traces by removing the VDB marker from your schematic page in Capture. To compare the last run to the first run 1. From the Trace menu, choose Add Trace to display the Add Traces dialog box. 2. In the Trace Expression text box, type the following: V(Out)@1 V(Out)@21 Tip You can avoid some of the typing for the Trace Expression text box by selecting V(Out) twice in the trace list and inserting text where appropriate in the resulting Trace Expression. 3. Click OK. Note: The difference in gain is apparent. You can also plot the difference of the waveforms for runs 21 and 1, then use the search commands to find certain characteristics of the difference. 4. Plot the new trace by specifying a waveform expression: a. From the Trace menu, choose Add Trace. b. In the Trace Expression text box, type the following waveform expression: V(Out)@1-V(OUT)@21 c. Click OK. 5. Use the search commands to find the value of the difference trace at its maximum and at a specific frequency:

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