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IGBT Forum Discussions

User17665
Level 1
5 questions asked First question asked First reply posted
Level 1
Dear all,

Does the IGBT have unclamped inductive switching capability?

Thank you in advance!
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Giuseppe_De_Fal
Moderator
Moderator 10 solutions authored 10 replies posted 10 sign-ins
Moderator
Hi Gyro,
unclamped inductive switching operation are not guaranteed anymore in the IGBT datasheets. Depending on the technology, some IGBT may be still capable of handling operation in breakdown conditions.

For specific applications, where the avalanche operations are possible, an IGBT can be designed with robustness to UIS. However, a compromise with the performances in the normal operating conditions must be taken into consideration.

Best Regards,
Giuseppe

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Giuseppe_De_Fal
Moderator
Moderator 10 solutions authored 10 replies posted 10 sign-ins
Moderator
Hi Gyro,
unclamped inductive switching operation are not guaranteed anymore in the IGBT datasheets. Depending on the technology, some IGBT may be still capable of handling operation in breakdown conditions.

For specific applications, where the avalanche operations are possible, an IGBT can be designed with robustness to UIS. However, a compromise with the performances in the normal operating conditions must be taken into consideration.

Best Regards,
Giuseppe
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