eem2am
Banned
Hello,
In offline, isolated flyback converters (43W) in Discontinuous mode, and using an Ultra-fast secondary diode............
...Is it wise to use a simple diode snubber comprising just a 470p capacitor?
I thought that the diode snubber should always be R in series with C.?
After all, if its just a capacitor used, then a large current spike flows through this capacitor, and through the FET, every time the FET switches ON.
Surely the simple Capacitor-only snubber is no more efficient than an RC snubber?........after all, if the R is omitted, then the energy just gets burned up elsewhere in the circuit?
...after all, the capacitor-only snubber is not a specialist lossless snubber, which is a far more complicated animal?
In offline, isolated flyback converters (43W) in Discontinuous mode, and using an Ultra-fast secondary diode............
...Is it wise to use a simple diode snubber comprising just a 470p capacitor?
I thought that the diode snubber should always be R in series with C.?
After all, if its just a capacitor used, then a large current spike flows through this capacitor, and through the FET, every time the FET switches ON.
Surely the simple Capacitor-only snubber is no more efficient than an RC snubber?........after all, if the R is omitted, then the energy just gets burned up elsewhere in the circuit?
...after all, the capacitor-only snubber is not a specialist lossless snubber, which is a far more complicated animal?