User Guide

Editing model text
111
tolerances to model parameters for Monte Carlo or
sensitivity/worst-case analysis.
Editing .SUBCKT definitions
For definitions implemented as subcircuit netlists using
PSpice .SUBCKT syntax, the model editor displays the
subcircuit syntax exactly as it appears in the model
library. The Model Editor also includes all of the
comments immediately before or after the subcircuit
definition.
Changing the model name
You can change the model name directly in the PSpice
.MODEL or .SUBCKT syntax, but double-check that the
new name does not conflict with models already
contained in the libraries.
Note If you do create a model with the same name as another model and
want PSpice to always use your model, make sure the configured
model libraries are ordered so your definition precedes any other
definitions.
Starting the Model Editor
from the schematic page editor in Capture
Start the model editor from the schematic page editor in
Capture when you want to:
•
define tolerances on model parameters for statistical
analyses,
•
test behavior variations on a part, or
•
refine a model before making it available to all
designs.
This means editing models for part instances in your
design. When you select a part instance and edit its model,
the schematic page editor automatically creates an instance
model that you can then change.
To
f
in
d
out more a
b
out instance mo
d
e
l
naming conventions, see
What is an
instance model? on page 4-112
.
To
f
in
d
out more a
b
out searc
h
or
d
er in t
h
e
model library, see
Changing model
library search order on
page 4-124
.
You can a
l
so use t
h
e mo
d
e
l
e
d
itor to view
the syntax for a model definition. When
you are finished viewing, be sure to quit the
Model Editor without saving the library, so
the schematic page editor does not create
an instance model.
Pspug.book Page 111 Wednesday, November 11, 1998 1:14 PM