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# Switching Loss for the MOSFET using its datasheet provided

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Download the datasheet from the following link and calculate the switching loss for the MOSFET when Vds = 25V and switching frequency = 1MHz

http://www.irf.com/product-info/datasheets/data/irfb4233pbf.pdf

https://brainmass.com/physics/torques/switching-loss-for-the-mosfet-using-its-datasheet-provided-537390

#### Solution Preview

Power loss on switching is given by

P(sw) = K*(Tr +Tf )*Vds*Ids*fs -----------------(1)

Where,
K = constant = 1/2 (Usually its 1/6 to 1/2 but conventionally we take 1/2)
Tr= Raise time = 71 ns (71 nano-second) = 71*10^-9 s
Tf=fall time = 41 ns = 41*10^-9 s
Vds = 25 V
Ids=39 A
fs= 1 MHz = 1*10^6 Hz

Put this values in above equation-1 and ...

#### Solution Summary

Solution is explained step-by-step with necessary formula and terms involved. All terms and conditions in the formulas are explained.

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