Hi all
I hope everyone is in good health.
I have a question.
I do simulate a three level flying capacitor system, in Gan, it is for class D open loop tests.
The question is how do I drive the gates of the floating mosfets, and can I use symetrical supply? this
is for that the output is on zero potential, speakers doe not like voltages afcourse.
I did see different stuff on the internet about driving a three level buck, I see that for the upper floating fets
one half of this ic is used, the bootstrapped part, for driving it do I need insulated pwm signals? or can I
level shift them? did see with other cascaded systems it is insulated bevause the supply is also floating
but with flying cap one supply is used or symetrical 2 x 42 volts in mine case, if this is not possible and I need
asingle voltage then I need to draw a BTL system, for sim I can use a capacitor to load afcourse.
So for short.
How to do pwm inputs referencing for the flying cap floating mosfets and driver.
can I use symetrical supply so I do nog need a capacitor or BTL.
Is there some stuff to read who I understand.
I did read some papers concern this and did read about special bootstrapping or a floating supply with
an special ic.
I have not much that experience with these systems so I ask you educated guys and thanks in advance.
regards and keep save,
