SIMPLORER User Manual V6.0 - FER-a

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40 General Modeling Functions
3.3.1 Selecting Components
The Schematic Model tree provides all installed SIMPLORER libraries in the following tabs:
«Basics», «Displays», «AMS», «Digital», «Tools», «Add Ons», «Manufacturers», «Users»,
and «Projects». Each tab can contain one or more libraries. All components are contained in
a library.
Select a tab in the Installed Libraries window and then the desired component in the tree.
Drag the component with pressed mouse button onto the sheet (Drag-and-Drop).
SIMPLORER Components
A simulation model (SML description) can consist of different model types. A model, used in
a SML description, can be an internal component, an C model (modeled in C++), or a macro.
A macro itself is a substructure that can include all model types: internal components, C models,
and macros. There are two macro formats, graphical and text macros. VHDL-AMS models
appear in the Model Agent as text macros and in the SML description as COUPL statement.
Model Type Internal
components
C Models Macros
Format – – Graphical Text
Language – C++ SML SML VHDL-AMS
SML statement INTERN UMODEL MODELDEF
MODEL
MODEL COUPL
Each model type has a corresponding symbol in the Model Agent. All components (internal
components, C models, macros) belong to a library. They can be placed on the sheet and used
in a simulation model in the same way. See also “Symbols in the Model Agent” on page 488.
Macros can be changed if the description is not encoded. All VHDL-AMS models are open
coded and can be used to derive more advanced models.
Simulation Level — Static and Dynamic Components
For most applications, system level semiconductor components supply sufficient simulation
data. However, if your simulation targets other data, such as turn on and off, losses, and thermal
analysis, then you need to use dynamic components (Semiconductor device level components,
Spice components, Manufacturer models). Keep in mind that using a large number of
dynamic components increases simulation time.
It is not very useful to combine nonlinearity, an exact geometric representation, and the complete
dynamic behavior in one model. As it is common in other areas of modelling too, only
subsystems have to be described with high accuracy while other parts can be simplified.
Semiconductor Device Level and Manufacturer Components
Device level components appear in the «Basics» tab (Semiconductor Device Level, Spice) and
«Manufacturers» tab. In SIMPLORER, there are two types of manufacturer models:
• Parametrized models, in which parameters can be changed («Basics»).
• Completely parametrized models, in which parameters cannot be changed («Manufacturers»).