User`s guide

19
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2 Other Output Options
Viewin
g
Analo
g
Results
in the PSpice Window
Schematics provides a special WATCH1 symbol that lets you
monitor voltage values for up to three nets in your schematic as
a DC sweep, AC sweep or transient analysis proceeds. Results
display in the PSpice window.
To displa
y
volta
g
e values in the PSpice window
1
Place and connect a WATCH1 symbol on an analog net.
2
Double-click the WATCH1 symbol instance.
3
Set the ANALYSIS attribute to DC, AC, or
TRAN(transient) for the type of analysis results you want to
see.
4
Set the LO and HI attributes to define the lower and upper
bounds, respectively, on the values you expect to see on this
net.
5
Repeat steps 1
through 4 for up to two more WATCH1
instances.
6
Start the simulation.
Example: In the schematic fragment shown below at left,
WATCH1 symbols are connected to the Mid and Vcc nets. After
starting the simulation, PSpice A/D displays voltages on the Mid
and Vcc nets in the PSpice window.
If the results move outside of the
specified bounds, PSpice A/D
pauses the simulation so that
you can investi
g
ate the behavior.
volta
g
e on Mid volta
g
e on Vcc