User`s guide

6
-
46 Analo
g
Behavioral Modelin
g
Basic Controlled
Sources
As with basic SPICE, PSpice A/D has basic controlled sources
derived from the standard SPICE E, F, G, and H devices.
Table 6-5
summarizes the linear controlled source types
provided in the standard symbol library.
Creatin
g
Custom ABM Parts
When you require a controlled source that is not provided within
the special purpose set, or that exhibits more elaborate behavior
than is provided with the general purpose parts (with multiple
controlling inputs, for example), we recommend building the
functionality into a custom symbol similar to the special purpose
parts introduced above.
The transfer function can be built into the symbol either of the
following ways:
• directly in the TEMPLATE definition
• by defining the part’s EXPR and related attributes (if any)
Familiarity with the PSpice A/D syntax for declaring E and G
devices will help you form a suitable TEMPLATE definition.
Table 6-5
Basic Controlled Sources in analog.slb
Part Type
Symbol
Name
Controlled Voltage Source
(PSpice A/D “E” device)
E
Current-Controlled Current Source
(PSpice A/D “F” device)
F
Controlled Current Source
(PSpice A/D “G” device)
G
Current-Controlled Voltage Source
(PSpice A/D “H” device)
H
Refer to your MicroSim
Schematics User’s Guide
for a
description of how to create a
custom symbol.
Refer to the online MicroSim
PSpice A/D Reference Manual
for more information about E and
G devices.