I found an article that discusses vswr testing. ?While I think the fundamental can only ?induce twice it’s voltage (by 100% reflection) I forgot there are harmonics to think about also!?
The author suggests that 2.5 times the drain voltage DC is a reasonable maximum to expect
If that’s true, then our 55 or 60 V devices should be fine.?
Gordon Kx4z?
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On Nov 20, 2023, at 19:38, ajparent1/kb1gmx <kb1gmx@...> wrote:
?maybe depending on the specific load.
And 28V is way below the tolerance for the mosfet.
IRF510 a is a 100V part and the IRFZ24 is a 55 volt part.
Generally its reasonable to keep the drain voltage below that.
That has little to do with gate voltage as that is only from the divers.
Id expect that to be well under 10V P-P at the gates.
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Allison
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