PSpice User Guide

PSpice User Guide

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PSpice A/D User Guide Preparing a design for simulation October 2019 172 Product Version 17.4-2019 © 2022 All Rights Reserved. The system variables listed in Table 3-5 on page 172, cannot be used in the trace expressions in the Probe window. These variables are supported only by the PSpice engine. 1. M(x), P(x), R(x), and IMG(x) apply to Laplace expressions only. Table 3-5 System variables This variable... Evaluates to this... TEMP Temperature values resulting from a temperature, parametric temperature, or DC temperature sweep analysis. The default temperature, TNOM, is set in the Options dialog box (from the Simulation Settings dialog box, choose the Options tab). TNOM defaults to 27°C. Note: TEMP can only be used in expressions pertaining to analog behavioral modeling and the propagation delay of digital models. Note: If a passive or semiconductor device has an independent temperature assignment, then TEMP does not represent that device's temperature. To find out more about customizing temperatures for passive or semiconductor devices, refer to the .MODEL command in the Commands chapter in the PSpice A/D Reference Guide. TIME Time values resulting from a transient analysis. If no transient analysis is run, this variable is undefined. Note: TIME can only be used in analog behavioral modeling expressions.

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