PSpice User Guide

PSpice User Guide

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PSpice User Guide Parametric and temperature analysis October 2019 523 Product Version 17.4-2019 © 1999-2019 All Rights Reserved. Overview of temperature analysis For a temperature analysis, PSpice reruns standard analyses set in the Simulation Settings dialog box at different temperatures. Note: Running multiple analyses for different temperatures can also be achieved using parametric analysis (see Parametric analysis on page 512). With parametric analysis, the temperatures can be specified either by list, or by range and increments within the range. You can specify zero or more temperatures. If no temperature is specified, the circuit is run at 27°C. If more than one temperature is listed, the simulation runs once for each temperature in the list. Setting the temperature to a value other than the default results in recalculating the values of temperature-dependent devices. In EXAMPLE.OPJ (see Figure 11-6), the temperature for all of the analyses is set to 35°C. The values for resistors RC1 and RC2 are recomputed based upon the CRES model which has parameters TC1 and TC2 reflecting linear and quadratic temperature dependencies. Likewise, the Q3 and Q4 device values are recomputed using the Q2N2222 model which also has temperature-dependent parameters. In the simulation output file, these recomputed device values are

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