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cross mob
KUOWENYUNG
Level 3
Level 3
25 replies posted 100 sign-ins 50 sign-ins

Dear IFXer,

We use the IMBG120R220M1H and design for three phase six switch. 

In general, can found the crosstalk on gate of SR FET and I try my understanding to analyze the phenomenon, but I'm afraid that I have not fully understood the true phenomenon, could you help me to review the flow chart as below figure? 

And my further question is that why crosstalk no happen in PWM FET?

 

page3.JPG

at positive line frequency 

page1.JPG

at negative line frequency

page2.JPG

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1 Solution

Hello,

Can you please share the set up photo. The oscillation looks like it it due to leakage inductance of the set up and clamping capacitor across the device.

Thanks,

BR

AZIZ

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4 Replies
AZIZ_HASSAN
Moderator
Moderator
Moderator
50 likes received 5 likes given 250 sign-ins

Hello,

Thank you for posting at Infineon community. May I know what do you exactly mean by cross talk.

Thanks,

BR

AZIZ

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Hi AZIZ,

I mean crosstalk is oscillations of vgs, induce positive / negative voltage.

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Dear AZIZ,

Could you help me to confirmed that question?

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Hello,

Can you please share the set up photo. The oscillation looks like it it due to leakage inductance of the set up and clamping capacitor across the device.

Thanks,

BR

AZIZ

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