How to Calculate Ringing Frequency for a Snubber Circuit in a Buck Converter?

[billy fok]

may i know how to calculate ringing frequency?

 

[Baluncore]

The "ringing frequency" of what ?

 

[billy fok]

i need to to design snubber circuit for buck converter..

 

[DaveC426913]

What reading/learning have you done so far?

 

[Baluncore]

i need to to design snubber circuit for buck converter..

The design of an appropriate snubber network for a specific application can be quite complex. To get a useful answer you will need to post the schematic of your design and specify which transients you believe might need to be snubbed.