User Guide

Chapter 4 Creating and editing models
94
Ways to use the Model Editor
You can use the Model Editor five ways:
• To define a new model, and then automatically
create a part. Any new models and parts are
automatically available to any design.
• To define a new model only (no part). You can
optionally turn off the part creation feature for new
models. The model definition is available to any
design, for example, by changing the model
implementation for a part instance.
• To edit a model definition for a part instance on your
schematic. This means you need to start the Model
Editor from the schematic page editor after selecting a
part instance on your schematic. The schematic editor
automatically attaches the new model implementation
(that the Model Editor creates) to the selected part
instance.
• To examine or verify the electrical characteristics of
a model without running PSpice. This means you can
use the Model Editor alone to:
• check characteristics of a model quickly, given a
set of model parameter values, or
• compare characteristic curves to data sheet
information or measured data.
To
f
in
d
out more, see Running the
Model Editor alone on
page 4-99
.
To
f
in
d
out more, see Running the
Model Editor alone on
page 4-99
.
To
f
in
d
out more, see Running the
Model Editor from the
schematic page editor on
page 4-101
.
To
f
in
d
out more, see Running the
Model Editor alone on
page 4-99
.
Pspug.book Page 94 Wednesday, November 11, 1998 1:14 PM