PSpice User Guide

PSpice User Guide

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PSpice User Guide Creating and editing models October 2019 191 Product Version 17.4-2019 © 1999-2019 All Rights Reserved. Model library configuration PSpice searches model libraries for the model names specified by the MODEL implementation for parts in your design. These are the model definitions that PSpice uses to simulate your circuit. For PSpice to locate these model definitions, you must configure the libraries. This means: ■ Specifying the directory path or paths to the model libraries. ■ Naming each model library that PSpice should search and listing them in the desired search order. ■ Assigning global, design or profile scope to the model library. To optimize the model library search, PSpice uses indexes. To find out more about this and how to add, delete, and rearrange configured libraries, see Configuring model libraries on page 244. Global vs. design vs. profile models and libraries Model libraries and the models they contain have either profile, design or global application to your designs. Profile models Profile models apply to one profile. You can create models using the Model Editor and then manually configure the new libraries for a specific profile. Example usage: To set up device and lot tolerances on the model parameters for a particular part instance when running a Monte Carlo or sensitivity/worst-case analysis using a specific profile. Design models Design models apply to one design. The schematic page editor automatically creates a design model whenever you modify the model definition for a part instance on your schematic page. You can also create models externally and then manually configure the new libraries for a specific design.

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