How to custom IGBT characteristics (I-V)

I need to use IGBT device where I need to custumize the charactericts per manufacturer datasheet.

I've start off from IGBT characteristics example

where I want to adapt device per datasheet data as such

On state voltage Vce(Tj,Ice) [0, .1, .6, .8, 1, 1.3, 1.6, 2, 2.4; 0, .1, .7, 1, 1.2, 1.5, 1.9, 2.4, 2.8]

>> [0, .1, .6, .8, 1, 1.3, 1.6, 2, 2.4; 0, .1, .7, 1, 1.2, 1.5, 1.9, 2.4, 2.8]

ans =

0 0.1000 0.6000 0.8000 1.0000 1.3000 1.6000 2.0000 2.4000

0 0.1000 0.7000 1.0000 1.2000 1.5000 1.9000 2.4000 2.8000

Temperature vector Tj [298.15, 398.15]

Collector-emiter current Ice [0, .1, 1, 5, 10, 20, 40, 70, 100]

I wonder how/where can I enter the IGBT output characteristic, IC= f (VCE) for various Tj and with respect various Vge?

Answer 1

[Abhishek]

Hi Peter,

I understand that you want to customize the output characteristics of the IGBT device based on the manufacturer's datasheet.

This can be accomplished in one of the two ways:

1. Direct Parameter Input: Enter the required parameter values from the datasheet into the corresponding fields in the IGBT model’s block parameters.
2. Lookup Table Approach: If the values for collector current (IC) as a function of gate-emitter voltage (VGE) and collector-emitter voltage (VCE) are available, it can be used directly to create as 2-D lookup table of IC as a function of VGE and VCE. If IC also depends on temperature, a 3-D lookup table of IC as a function of VGE, VCE, and temperature (T) can be created.

To replicate the characteristic curves shown in the figure, adjust the VGE value as needed and set the appropriate VCE limits in the block parameters. Then, run the simulation, it will plot the customized characteristics of the IGBT device.

For more detailed instructions, please refer to the MATLAB documentation for the N-Channel IGBT at the following link: https://www.mathworks.com/help/releases/r2024b/sps/ref/nchanneligbt.html