User Guide

Transient analysis
35
6 Click OK to close the Simulation Settings dialog box.
7 From the PSpice menu, choose Run to perform the
analysis.
PSpice uses its own internal time steps for
computation. The internal time step is adjusted
according to the requirements of the transient analysis
as it proceeds. PSpice saves data to the waveform data
file for each internal time step.
To display the input sine wave and clipped wave at V(Out)
1 From PSpice’s Trace menu, choose Add Trace.
2 In the trace list, select V(In) and V(Out) by clicking
them.
3 Click OK to display the traces.
4 From the Tools menu, choose Options to display the
Probe Options dialog box.
5 In the Use Symbols frame, click Always if it is not
already enabled.
6 Click OK.
Figure 17 Sinusoidal input and clipped output waveforms.
Note T
h
e interna
l
time step is
d
i
ff
erent
from the Print Step value. Print Step
controls how often optional text format
data is written to the simulation output
file(*.OUT).
or press
I
T
h
ese wave
f
orms i
ll
ustrate t
h
e c
l
ipping o
f
the input signal.
Pspug.book Page 35 Wednesday, November 11, 1998 1:14 PM