Hello,
I would like to know exactly which current or peak current drive I have to prepare once I know the Qgtot of a MOSFET datasheet. Is there a simple calculation?
thanks
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Hello,
I would like to know exactly which current or peak current drive I have to prepare once I know the Qgtot of a MOSFET datasheet. Is there a simple calculation?
thanks
Hello Brett,
sorry for the delay. (notification fails)
So far I will use a frequency of 20Khz. But anyway I wil like to know more general answer, I don't need precise data
thanks in any case
Jose,
Its just a function of how fast you want to turn on the FET.
Ig = Qg / t(on)
The trade off is, the faster you turn on the FET, the more ringing you will see.