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IGBT Power losses calculation

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wael_sal

wael_sal

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Hi,
In some data sheets, the Eon, Eoff and Ets dissipated energies are presented in switching characteristics of a power IGBT switch.
My question, from those energy values (in mJ unit) how can calculate power losses in terms if watts, I mean what the time to be used to get the total power loss from the total energy loss (Ets) ?

thanks
Wael
 

Ets=Eon+Eoff ; transient (only!) power loss = Ets*fswitch
Additionally you have the static power loss = Vce(sat)*Ic*d ; d=duty_cycle
 

Dear wael_sal
Hi
The dissipation power of an IGBT in discontinuous region , will given by this equation: Ploss=(1/T)∫ vce sat*Id dt
from 0 to ton.
Best Wishes
Goldsmith
 

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