User`s guide

Usin
g
the Parts Utility to Edit Models 4
-11
Wa
y
s to Use the Parts Utilit
y
You can use the Parts utility five ways:
• To define a new model, and then automatically create a
symbol. Any new models and symbols are automatically
available to any schematic.
• To define a new model only (no symbol). You can
optionally turn off the symbol creation feature for new
models. The model definition is available to any design, for
example, by changing a model reference on a part instance.
• To edit the model definition linked to symbol definition
in the symbol library. This means you need to start Parts
from the symbol editor after having loaded or created a
symbol. Schematics automatically links the new model
definition (that the Parts utility creates) to the symbol
definition.
• To edit a model definition for a part instance on your
schematic. This means you need to start the Parts utility
from the schematic editor after having selected a part
instance on your schematic. The schematic editor
automatically links the new model definition (that the Parts
utility creates) to the selected part instance.
• To examine or verify the electrical characteristics of a
model without running PSpice A/D. This means you can
run the Parts utility 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 find out more, see Running
the Parts Utility Alone on
page 4-16.
To find out more, see Running
the Parts Utility Alone on
page 4-16.
To find out more, see Running
the Parts Utility from the Symbol
Editor on page 4-18.
To find out more, see Running
the Parts Utility from the
Schematic Editor on page 4-20.
To find out more, see Running
the Parts Utility Alone on
page 4-16.