Author Topic: Igbt question  (Read 137 times)

Offline dbach

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Igbt question
« on: May 14, 2021, 09:05:19 PM »
Hi! I am building a drsstc and found a good deal for 4 MG300J2YS40 igbt’s, looking at the data sheet (which is very limited) I noticed that it has pretty slow switching speeds. I was wondering how well these work work in either a half or full bridge setup, and what kinda performance I could expect outa them? Any help with this directly or how to figure it out in my own would be loads of help, thanks in advance!

Offline AstRii

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Re: Igbt question
« Reply #1 on: May 14, 2021, 10:22:53 PM »
Hello!
They do have quite fast internal diode but their t_on / t_off times seem to be twice as slow as a classic CM300 module.
Their 27nF input capacitance suggests not as big channel therefore they will not be as robust as CM300 with 47nF of gate capacitance.

The maximum switching current will depend on the resonant frequency of your setup (I wouldn't go much higher than 90kHz) and on your phase lead.

Offline dbach

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Re: Igbt question
« Reply #2 on: May 14, 2021, 10:27:17 PM »
Well thanks very much! I can definitely aim below 90khz, I’ll probably be closer to 70 anyhow, thanks for the info, I’ll have to be careful with them

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Re: Igbt question
« Reply #2 on: May 14, 2021, 10:27:17 PM »

 


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