Long story short, two MG200J2YS50 dual IGBTs (half bridge arrays) landed on my hands, mounted on a 5kg aluminium heatsink (each!). I think they came from some industrial grade UPS system.
The heatsinks alone beg to be used for some class A amplifier (and they will), but i would like to know if i could incorporate the already mounted IGBT modules as the output stage of some design. I have never used IGBTs before, let alone beasts like these. They appear to be some bipolar-fet hybrid, with a gate in place of the usual base-emitter junction.
Could someone please guide me as to how could these be used. I would like to experiment and even make a working class A amplifier out of them. I suppose i will only use just one of the two IGBT chips contained in each module. This limits me to single ended operation, right?
http://radio-hobby.org/uploads/datasheet/9/mg20/mg200j2ys50.pdf
Anyway, any tips, schematics or other help greatly appreciated!
The heatsinks alone beg to be used for some class A amplifier (and they will), but i would like to know if i could incorporate the already mounted IGBT modules as the output stage of some design. I have never used IGBTs before, let alone beasts like these. They appear to be some bipolar-fet hybrid, with a gate in place of the usual base-emitter junction.
Could someone please guide me as to how could these be used. I would like to experiment and even make a working class A amplifier out of them. I suppose i will only use just one of the two IGBT chips contained in each module. This limits me to single ended operation, right?
http://radio-hobby.org/uploads/datasheet/9/mg20/mg200j2ys50.pdf
Anyway, any tips, schematics or other help greatly appreciated!
Yes they are used in power supply designs and yes EW came out with some designs for use in audio just to prove they would function as audio devices but I must say they are not my favorite active devices in audio.
Please have a read of first IR,s design engineers comments on them and then NREL.gov ( USA ) very detailed flaws in them-
https://www.infineon.com/dgdl/Infin...N.pdf?fileId=5546d462533600a40153574048b73edc
https://www.nrel.gov/pv/assets/pdfs/2015_pvmrw_131_das.pdf
I am not trying to put them down just showing that while they could be used in audio equipment they were designed for power supply uses.
Different compensation factors will apply in audio use including feedback.
Please have a read of first IR,s design engineers comments on them and then NREL.gov ( USA ) very detailed flaws in them-
https://www.infineon.com/dgdl/Infin...N.pdf?fileId=5546d462533600a40153574048b73edc
https://www.nrel.gov/pv/assets/pdfs/2015_pvmrw_131_das.pdf
I am not trying to put them down just showing that while they could be used in audio equipment they were designed for power supply uses.
Different compensation factors will apply in audio use including feedback.
D.Self wasn't too keen on them but here is DIY Audio,s thread on them --please read the WHOLE thread-
Has somebody used IGBT in power amp
JLH,s circuit diagram of them-
https://startfetch.com/jlh/jlh-1992-amplifier.gif
Please remember JLH commented a lot in the article and this was his published version just to show they would work in audio it didn't mean he was 100 % behind them.
Has somebody used IGBT in power amp
JLH,s circuit diagram of them-
https://startfetch.com/jlh/jlh-1992-amplifier.gif
Please remember JLH commented a lot in the article and this was his published version just to show they would work in audio it didn't mean he was 100 % behind them.
Thank you very much duncan, interesting stuff. Seems IGBTs are primarily used for switching applications. I will try them out though as a single stage amplifier, something like the passdiy lite zen amplifier, just out of curiosity. I certainly cannot harm them... they are designed for a shitload of current.
IGBT,s work very well in Dclass amplifiers how to implement them is another story
warm regards
Andrew
warm regards
Andrew