How to test an IGBT brick.

This video will show you how to test an insulated gate bipolar transistor (IGBT) power brick by using only a 12V battery and light.

Category:

Science & Technology

Tags:

• IGBT
• insulated
• gate
• bipolar
• transistor
• VFD
• Drive

[funvids12]

This somewhat demonstrates how an IGBT functions but it doesn't actually test the integrity of the unit. These units are designed to operate under a large load and may only show thier faults under a large load. It is possible to have a bad IGBT that will perform perfectly under this test configuration. I am not here to under mind anybody but to help folks understand that this test will only proof a fault if the unit is catastrophically damaged to where it wont even work under this condition.

[energyfort]

Excellent

Thanks

(realscientist)...

[MrModdassir]

what is that mirror used in the presentation? what is the function of mirror in igbt?

[jacksonguitars82]

Hello. I have a dual darlington transistor module (Powerex KD324515). I have performed this test, but it didn't work with my brick. I haven't got any battery like in the video, so I used a 15V DC adaptor. I could switch on the lamp, only when I changed the polarity. In this case the lamp was switched on continously. When I touched one of B1, B2, E1, E2 tabs with the positive pole, and hold it, the lamp was turned off. If I release it, the light was turn on again. Does it work well?

[DonaticX]

thanks for the info, now i know how to use my new igbt, but, after 5min playing with him he was dead =/ ^^

[jpmorgan187]

good demo, thanks.

[cityofdomes]

Thanks for this video, very informative! I had a single gate IGBT and when testing it I still managed to damage it even though I had an anti-static wrist guard on at the time (was a while ago now but I think in my absent-mindedness I may have actually hooked the gate before hooking the battery terminal, oops, so yes it pays to take extra care with these things, even with a wrist guard on - and IGBTs are expensive :-(

[jamesclements997]

Brilliant video. Thank you.

[frankbar007]

Very good test, I liked a lot.

Congratulations for your demonstration. Very smart.

Frank.

[mamwaswdupie9]

I did same test with my mg15n6es42 igbt brick 6xigbt. In resoult i can tell that this test could not work if igbt have gate protection diodes, when igbt is working propelly.