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Hi guys,
I'm trying to drive an FF300R12KS4 as fast as possible. Reading this document:
I'm trying to find the value of RGext, minimum external resistance. The IGBT has an internal resistor RGint as 1 Ohm, and in the switching tests, RGon and RGoff are specified as 3 Ohms. Does that mean I need to use an external 2 Ohm resistor to make up 3 Ohms total, or should I use an external 3 Ohm resistor making 4 Ohms total?
Thanks for the help,
Dan
Solved! Go to Solution.
- Labels:
-
ispn:4954:1:0
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l1:144:1:0
-
l2:219:1:0
-
l3:238:1:0
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Dear Dan,
Thanks for your request.
Rgon=Rgon,ext+Rgint, Rgoff=Rgoff,ext+Rgint,
Q: The IGBT has an internal resistor RGint as 1 Ohm, and in the switching tests, RGon and RGoff are specified as 3 Ohms.
A: It means that need to use an external 2 Ohm resistor to make up 3 Ohms total.
Best regards,
Rachel
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Dear Dan,
Thanks for your request.
Rgon=Rgon,ext+Rgint, Rgoff=Rgoff,ext+Rgint,
Q: The IGBT has an internal resistor RGint as 1 Ohm, and in the switching tests, RGon and RGoff are specified as 3 Ohms.
A: It means that need to use an external 2 Ohm resistor to make up 3 Ohms total.
Best regards,
Rachel
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Perfect, thanks for the clarification 🙂