PSpice User Guide

PSpice User Guide

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PSpice User Guide Creating and editing models October 2019 247 Product Version 17.4-2019 © 1999-2019 All Rights Reserved. This implies that if you configure a model library (*.LIB extension) as an include file using the Add to Design or Add as Global button, PSpice loads every model definition contained in that file. If the model library is large, you might overload the memory capacity of your system. However, when developing models, you can do the following: 1. Initially configure the model library as an include file; this avoids rebuilding the index files every time the model library changes. 2. When your models are stable, reconfigure the include file containing the model definitions as a library file. To reconfigure an include file as a model library file: 1. From the Simulation menu, choose Edit Profile, then click the Configuration Files tab. 2. Click Include in the Category field to display the Include files list. 3. Select the include file that you want to change. 4. Click the Delete button located above the Include files list. See Adding model libraries to the configuration on page 248. Search order When searching for model definitions, PSpice scans the model libraries using these criteria: ■ profile model libraries before design model libraries ■ design model libraries before global model libraries ■ model library sequence as listed in the Library files list in the Configuration Files tab of the Simulation Settings dialog box ■ list of directories (including the design library) specified in the library search path in the order given (see Changing the library search path on page 253). From the directories listed in the Library Path, only the directories that contain a NOM.LIB file are looked up by PSpice during the model search.

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