T
treez
Guest
Hello,
Please can you state if the attached method for deriving discrete logic for Buck converter sync FET switching signals is optimal?
We are designing a 300W Buck converter for down-hole application where ambient temperatures are 170degC.
We cannot use a chip which does the sync FET driving signals as those chips can’t withstand 170degC.
The delays and switching logic put in all seems very precarious and I worry about shoot through currents.
Please can you state if you have a more reliable way to do it?
(Ltspice sim and pdf schematic attached)
Please can you state if the attached method for deriving discrete logic for Buck converter sync FET switching signals is optimal?
We are designing a 300W Buck converter for down-hole application where ambient temperatures are 170degC.
We cannot use a chip which does the sync FET driving signals as those chips can’t withstand 170degC.
The delays and switching logic put in all seems very precarious and I worry about shoot through currents.
Please can you state if you have a more reliable way to do it?
(Ltspice sim and pdf schematic attached)