Energy Characteristics (Average IGBT and Average Power MOSFET)

Use the Energy Characteristics dialog box to enter the data for the calculation of the energy correction coefficients for the Average IGBT and Average Power MOSFET models. The complete set of energy correction coefficients consists of switching energy data under 10 different working conditions.

These data sets must be entered following a predefined format:

• The first row is the set of data under the nominal working conditions (required).
• Each subsequent row may have only one change in the working condition; for example, temperature T is different from the value in the nominal values row. The required variation for each row is listed in the Note column of the table and is described in Energy Characteristic Default Row Description.

If any of these data sets are not available, clear the Enable check box for this row and the corresponding coefficients will remain at their default values (see the IGBT Average model reference for more information on the algorithm of the switching energy calculation). Additional information provided will be used to fine tune these coefficients.

Click Extraction to calculate dynamic dependency. When the extraction is complete, Show Log is enabled, and you can view the results after fitting.

When finished, click Next to continue characterizing the device (Validation).