Tool/software:
Hi there,
I've designed a flyback converter using the LM5155 with in input of 12V and output of 48V @1A max. I've attached a schematic of the circuit I'm using for reference. I'm looking for some guidance in choosing components for a snubber circuit. I am still seeing a lot of ringing at the input even after implementing the TVS snubber. Do you have any guidance on what to try to mitigate this? The scope capture is added as well with Blue being the switching node and yellow is Vout. The transformer being used is the NA6264 from Coilcraft.
Thanks,
Kyle
LM5155_TestBoard-D Schematics.PDF
