Power semiconductors parameters extration

[ibu]

Hi everybody,

I am new here.
I would like to extract parameters of power Diode and IGBT.
I would like to know if i could use matlab for this. and if so, how can i do? I have seen also the combined matlabspice, is it the best one?
Thankyou,

 

[Lewish]

A few questions....

I would like to extract parameters of power Diode and IGBT. Why? Aren't the values given by the manufacturer sufficient?

I have seen also the combined matlabspice,
Where have you seen such a thing? I have never heard of it, and it is not on the Matlab website.

What is your application for the above?

 

[ibu]

Well, I am doing a graduate program in a research laboratory. And the goal is to identify and
and extract the parameters to valid a modelisation
which has been done.
As for the combined Matlab and Spice, you can look at
this:

http://www.calindex.com/livre-infor...matlab-pspice-and-matlab-for-electronics.html

 

[IRstuff]

So, the task is to do either regression against a known function and/or to do a global optimization against the entire model.

In either case, the answer should be yes. Not sure about power devices, but regular signal device parameter extraction using global optimization tends to produce nonintuitive results. If your model does not include all the secondary effects, the optimization process will try to use the primary parameters to fit the data to a smaller model, thereby shifting the parameters away from a more "correct" value. TTFN

 

[Lewish]

And how would you expect Matlab to do this for you?

 

[IRstuff]

You'd need to write a wee bit of code ;-).

TECAP, which is(was?) from Hewlett Packard, written for the 4145 Parameter Analyzer was $14,000 when I used it in 1985, but it was extremely complete, extracting both DC, AC and HF parameters for transistors of various types. TTFN