IGBT FF650R17IE4

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Iancalazans
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Hi,

 

              We have the IGBT model FF650R17IE4 installed in PV inverters, and during some tests we had some doubts, can you please help us?

 

  • Do you have any value of resistance that is acceptable of the following parts:
    • Collector, emitter, and gate?
  • Do you have any guide test that we can perform to guarantee that the IGBT is okay?

 

Thanks in advance.

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Guru_Prasad
Moderator
Moderator
Moderator
250 replies posted 100 solutions authored 25 likes received

Dear @Iancalazans 

Thanks for posting your question in the Infineon community.

My answers to your questions are given below


• Do you have any value of resistance that is acceptable for the following parts:
o Collector, emitter, and gate?

Ans)Please let me what values are observing while you are testing

1)Gate to the emitter 

2)collector to emitter 

 


• Do you have any guide test that we can perform to guarantee that the IGBT is okay?


Ans) In the datasheet the SOA values are given please look into it ..

 

I hope you are also check in my cases also. Please continue the discussion in my cases only.

 

Thank you

Guru 

 

 

 

View solution in original post

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5 Replies
Guru_Prasad
Moderator
Moderator
Moderator
250 replies posted 100 solutions authored 25 likes received

Dear @Iancalazans 

Thanks for posting your question in the Infineon community.

My answers to your questions are given below


• Do you have any value of resistance that is acceptable for the following parts:
o Collector, emitter, and gate?

Ans)Please let me what values are observing while you are testing

1)Gate to the emitter 

2)collector to emitter 

 


• Do you have any guide test that we can perform to guarantee that the IGBT is okay?


Ans) In the datasheet the SOA values are given please look into it ..

 

I hope you are also check in my cases also. Please continue the discussion in my cases only.

 

Thank you

Guru 

 

 

 

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Iancalazans
Level 1
Level 1
First like given 5 sign-ins First reply posted

Hi Guru,

        The IGBT's that we have installed have high values of resistance, do you know any laboratory that we can send the IGBT's to test and analyze?

 

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Guru_Prasad
Moderator
Moderator
Moderator
250 replies posted 100 solutions authored 25 likes received

Hello @Iancalazans 

Could you share the test results with us? After the results analysis, we can decide.

Thank you

Guru

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Iancalazans
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Level 1
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Hi Guru,

                  Attached 2 reports of our PV Inverters repaired with the 

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Guru_Prasad
Moderator
Moderator
Moderator
250 replies posted 100 solutions authored 25 likes received

Hello @Iancalazans 

All measurements are fine except yellow marked values.

Guru_Prasad_1-1679561275449.png

what this is limit for R_Cond and R_blog? How is this measured?

Thank you

Guru