Recondition IGBT test

owais19m

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May 29, 2022
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Hello to all ,
I need 4 single IGBT's modules for testing purposes which could possibly blow during tests and trials (Inverter application) , so without taking risks , Im getting my self some recondition IGBT modules that look absolutely fine and are a bit cheap , I was wondering if someone could advice me ways to test the performance and life expectancy of these IGBT's (for knowledge purposes) ? by the way its a FZ800R12KE3 Infinion module.

Thanks ,
 
I didn't read the entire article, but this
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5712987/
when skimmed mentions testing of IGBTs for lifetime/etc. (starts out with simulations but get into realworld testing further down)

This
https://www.google.com/search?q=test+the+performance+and+life+expectancy+of+IGBT
also finds a few relevant-looking pages, such as
https://semiengineering.com/igbt-power-cycling-and-lifetime-testing/


BTW, a good source for IGBTs that isn't too expensive is used inverters from EVs. They can often be had for very little money, and will have three or more modules, usually as bridge pairs. If you happen to need the IGBTs to make a motor controller powerstage, you may be able to simply disable the built-in brain and wire in your own, as is done here:
https://endless-sphere.com/forums/viewtopic.php?t=105711
and elsewhere.
 
Firstly thanks for replying , most articles talk about prediction models , secondly I had an idea , since my application requires about 400 amps max using a cooling plate, I doubt using it at its 50% rated specs(Tc=80°C) is going to even crack any layer inside it for a long time :D , but implementing prediction models is a more effective way to ensure life expectancy of IGBT's later in the future .
Thanks ,
 
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