User`s guide

4
-
8 Creatin
g
and Editin
g
Models
Wa
y
s to Create and Edit
Models
This section is a roadmap to other information in this chapter.
Find the task that you want to complete, then go to the
referenced sections for more information.
If you want to... Then do this... To find out more, see this...
➥ Create or edit the model
for an existin
g
symbol
and have it affect all
schematics that use that
symbol.
Create or load the symbol first in
the symbol editor, then edit the
model using either the:
• Parts utility
*
, or
• model editor.
Running the Parts Utility from
the Symbol Editor on
page 4-18
.
Running the Model Editor
from the Symbol Editor on
page 4-31
.
➥ Create a model from
scratch and
automatically create a
symbol for it to use in any
schematic.
➥ Create a model from
scratch without a symbol
and have the model
definition available to any
design.
➥ View model
characteristics for a part.
Start the Parts* utility and enable/
disable automatic symbol
creation as needed; then create or
view the model.
Running the Parts Utility
Alone on page 4-16
.
➥ Define tolerances on
model parameters for
statistical analyses.
Select the part instance on your
schematic then edit the model
using the model editor.
Running the Model Editor
from the Schematic Editor on
page 4-33
.
➥ Test behavior variations
on a part.
➥ Refine a model before
making it available to all
schematics.
Select the part instance on your
schematic then edit the model
using either the:
• Parts utility*, or
• model editor.
Running the Parts Utility from
the Schematic Editor on
page 4-20
Running the Model Editor
from the Schematic Editor on
page 4-33
.
➥ Derive subcircuit
definitions from a
hierarchical schematic.
Use the Create Subcircuit
command in the schematic editor.
Using the Create Subcircuit
Command on page 4-37
.