Download - Wolfram Research

3.4 Expanding Subcircuits and Device Models 227
With AutoloadModels −> True, ExpandSubcircuits searches the model library for undefined device
models.
Load undefined models
from the library.
In[4]:= ExpandSubcircuits[buffer, DefaultSelector −> AC,
AutoloadModels −> True, Protocol −> Notebook]
Searching model libraries for model "BJT/AC".
Loading model "BJT/AC" from library FullModels‘.
Instantiating model "BJT/AC" for reference Q$T1.
Instantiating model "BJT/AC" for reference Q$T3.
Instantiating model "BJT/AC" for reference Q$T4.
Instantiating model "BJT/AC" for reference Q$T5.
Instantiating model "BJT/AC" for reference Q$T2.
Out[4]= NetlistFlat, 55
The following command tells Analog Insydes to load a model from the library into memory and store
it in the global subcircuit database for future reference. Further requests for the model "BJT/AC"
will not invoke a library search.
Load the model "BJT/AC"
and store it in the global
subcircuit database.
List the contents of the
global subcircuit database.
In[5]:= Circuit[
LoadModel["BJT", "AC", Scope −> Global]
] // ExpandSubcircuits;
In[6]:= GlobalSubcircuits[]
Out[6]= BJT, AC SpiceAC Noise SpiceNoise
Now that the model "BJT/AC" has been loaded into memory, turning off the autoloading mechanism
no longer results in an error when expanding the netlist buffer.
Use only model definitions
from the subcircuit
database; do not search
the library.
In[7]:= ExpandSubcircuits[buffer, DefaultSelector −> AC,
AutoloadModels −> False, Protocol −> Notebook]
Instantiating model "BJT/AC" for reference Q$T1.
Instantiating model "BJT/AC" for reference Q$T3.
Instantiating model "BJT/AC" for reference Q$T4.
Instantiating model "BJT/AC" for reference Q$T5.
Instantiating model "BJT/AC" for reference Q$T2.
Out[7]= NetlistFlat, 55
Clear the subcircuit
database.
In[8]:= RemoveSubcircuit[All]
Out[8]=
To illustrate how to write patterns for HoldModels, we make a list off all Model and Selector
specifications in the netlist buffer.