User Guide

Tools to create and edit models

There are three tools that you can use to create and edit

model definitions. Use the:

• Model Editor when you want to:

• derive models from data sheet curves provided by

manufacturers, or

• modify the behavior of a Model Editor-supported

model.

• edit the PSpice command syntax (text) for

.MODEL and .SUBCKT definitions.

• Create Subcircuit command in the schematic page

editor when you have a hierarchical level in your

design that you want to set up as an equivalent part

with behavior described as a subcircuit netlist

(.SUBCKT syntax).

Note

If you created a subcircuit definition using the Create Subcircuit

command and want to alter it, use the Model Editor to edit the

definition, or modify the original hierarchical schematic and run

Create Subcircuit again to replace the definition.

For a description of models supported by

the Model Editor, see

Model

Editor-supported device types on

page 4-95

Note

e Create Su

circuit comman

oes

not help you create a hierarchical design.

You need to create this yourself before

using the Create Subcircuit command. For

information on hierarchical designs and

how to create them, refer to the

OrCAD

Capture User’s Guide

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