User`s guide

Usin
g
the Model Editor 4
-29
Completin
g
the model definition
You can refine the model definition by:
• modifying the entered data as described before, or
• editing model parameters directly.
You can update individual model parameters by double-clicking
the entry in the Parameters list of the main parts window, and
then updating the parameter values in the dialog box. When you
exit from the dialog box, the Parts utility automatically updates
the device curves.
For now, you will leave the model parameters at their current
settings.
To save the model definition with the current
parameter values and to make the model
available to
y
our schematic
1
From the File menu, select Save to update
rectfr.lib and
write the library to disk.
Your schematic is now ready to simulate with the model
definition you just created.
Usin
g
the Model Editor
The model editor displays the PSpice syntax for model
definitions:
• .MODEL syntax for models defined as parameter sets
• .SUBCKT syntax for models defined as netlist subcircuits
You can use the model editor to:
• change definitions, and
• create new definitions
by typing in PSpice commands and netlist entries. When you are
finished, Schematics automatically configures the model
definitions into the model libraries.
Example: If you double-click BV
in the Parameters list, the Edit
Parameter BV dialo
g
box
displays.
This dialo
g
box lets you define a
valid ran
g
e for the model
parameter and specify whether it
should be excluded from the
extraction process.