threshold voltage

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User17671
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Why is gate threshold voltage important to avoid parasitic turn-on???
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YUAN
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First like received 10 replies posted 5 solutions authored
There will always be some gate voltage coupled from external. SiC MOSFET may have more gate voltage coupled, due to the fast switching. If the couple gate voltage is higher than the threshold voltage, parasitic turn-on will happen. This is why Infineon design the SiC MOSFET with the high Vth voltage.

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YUAN
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Moderator
Moderator
First like received 10 replies posted 5 solutions authored
There will always be some gate voltage coupled from external. SiC MOSFET may have more gate voltage coupled, due to the fast switching. If the couple gate voltage is higher than the threshold voltage, parasitic turn-on will happen. This is why Infineon design the SiC MOSFET with the high Vth voltage.
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