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On 25/05/2024 10:58, john23 wrote:

Hello, I want to simulate the effect of UCC21220AD_TRANS? floating ground in LTSPICE
My gate drive needs to create floating voltage for irf7854pbf MOSFET.
However i know that in LTSPICE floating ground is not possible.
I have attached bellow all symbols and simulation file.
How should make a floating ground in LTSPICE?
Is it possible to create two different types of ground in LTSPICE?
Thanks.

You didn't include "UCC21220AD_TRANS.LIB" in the list of required files. Neither is it in the folder you created.

And please, when you upload a schematic with models and symbols, put them all in a zip!