IGBT Thermal Model

In order to model the device's thermal effects, the IGBT model uses a rational polynomial which is represented internally by a combination of four RC elements.

Use the IGBT Thermal Model dialog box to define the coefficients for elements of the internal thermal network by extracting them from the manufacturer’s Transient Thermal Impedance data or by directly entering the Fractional Coefficients in a data table.

The table to enter the Fractional Coefficients is enabled by default. Select the Use Transient Thermal Impedance radio button to enable the entry of transient thermal impedance data into a data table.

For more information, click an area on the image below.

When finished, click Next to continue characterizing the device (FW Diode Thermal Model).