User Guide

Basing new parts on a custom set of parts
133
Basing new parts on a custom
set of parts
If you are using the the Model Editor to automatically
generate parts for model definitions, and you want to base
the new parts on a custom graphic standard (rather than
the OrCAD default parts), then you can change which
underlying parts either application uses by setting up
your own set of parts.
To create a custom set of parts for automatic part generation
1 Create a part library with the custom parts.
Be sure to name these parts by their device type as
shown in Table 2; this is how the Model Editor
determines which part to use for a model definition.
2 For each custom part, set its MODEL property to
`M
where ` is a back-single quote or grave character.
Table 2 Part names for custom part generation.
For this device type... Use this part name... For this device type... Use this part name...
Bipolar transistor: LPNP LPNP MOSFET: N-channel NMOS
Bipolar transistor: NPN NPN MOSFET: P-channel PMOS
Bipolar transistor: PNP PNP OPAMP: 5-pin OPAMP5
Capacitor* CAP OPAMP: 7-pin OPAMP7
Diode DIODE Resistor* RES
GaAsFET*
* Does not apply to the Model Editor.
GASFET Switch: voltage-controlled* VSWITCH
IGBT: N-channel NIGBT Transmission line* TRN
Inductor* IND Voltage comparator VCOMP
JFET: N-channel NJF Voltage comparator: 6 pin VCOMP6
JFET: P-channel PJF Voltage reference VREF
Magnetic core CORE Voltage regulator VREG
Note I
f
you use a custom part set, t
h
e
Model Editor always checks the custom part
library first for a part that matches the
model definition. If none can be found,
they use the OrCAD default part instead.
For more in
f
ormation on creating parts,
refer to the OrCAD Capture User’s
Guide.
Pspug.book Page 133 Wednesday, November 11, 1998 1:14 PM