PSpice User Guide

PSpice User Guide

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PSpice User Guide Creating and editing models October 2019 210 Product Version 17.4-2019 © 1999-2019 All Rights Reserved. For a description of template-based models supported by the Model Editor, see Model Editor-supported device types based on PSpice templates on page 211. To create a template-based PSpice model, complete the following steps. 1. In Model Editor, create a new library or open an existing library. 2. From the Model menu, choose New. 3. Specify the name of the new model in the Model Name text box. 4. Select the Use Templates option. 5. From the From Model drop-down list, select the device type. Depending of the device type, you may have to provide some other details. For example, if the device type is Bipolar Transistor, you will also need to specify if the BJT will be of NPN or PNP type. 6. Click OK. The Simulation parameters window appears with the default values of all simulation parameters. These values are editable and can be modified as required. Notice that the Model Text window of a template-based PSpice model is not editable, it is read-only. Also, the model text does not display the port information under the .SUBCKT statement. Adding tolerance information While creating template-based simulation models, you can add tolerance information using the Model Editor user interface. Tolerance information is required only for Advanced Analysis Monte Carlo and Sensitivity runs and not for simulating the models. The Postol, Negtol, and the Distribution columns are used to specify the tolerance information. In the Postol and Negtol columns, specify the positive and negative tolerances, respectively, for each of the simulation parameters. Adding a tolerance value enables the Distribution field for the parameter. The possible distribution types are:

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