Eoss loss consideration in hard switching

raghava235

Hai,

I have a query on Eoss consideration for switching loss. My application is on basic 2-level SPWM inverter design. I want to calculate the switching loss during hard switching. For that, is adding Eon, Eoff from the datasheet sufficient? Otherwise, it is adding Eon, Eoff, and Eoss from the datasheet. I was told that Eon and Eoff will have the Eoss inclusive, and just adding Eon and Eoff is sufficient. Is this true for hard switching? for soft ZVS Eoss won't be there so no need for Eoss addition. What is the case in Hard switching. Thank you.

Forum_Moderator

Thank you for your post, it has been approved and we will respond as soon as possible.

YuequanHu

Thanks for the questions. Yes, you may be right - Eon and Eoff will have the Eoss inclusive, and just adding Eon and Eoff is sufficient. We'll do further study and validate this. For soft ZVS, Eoss won't be there so no need for Eoss addition.

TBhatia

Hello,

We're still working on validating the answer. We will reach out to you as soon as we have something. Thank you!