Electronics > Power/Renewable Energy/EV's

Bootstrap drive for two transistor forward

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Faringdon:
As you know, Two tran forward  was never a candidate for bootstrapping, since it has no "pushpull" drive for the bootstrap cap refresh.
However, the attached shows its  easily possible.
Since modern bootstrap drivers, like 2ED2109,  have immunity to -11V on the Vs pin, and CMTI of 50v/ns, then why do people still use gate drive transformers for the high side drive?

2ED2109
https://www.infineon.com/dgdl/Infineon-2ED2109-4-S06F-J-DataSheet-v02_32-EN.pdf?fileId=5546d4626cb27db2016cb8d7493e29eb

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