My electronics is a bit weak and I am trying to figure out how to pick a common mode choke as per recommendation of a PSU module.
now, for pricing purposes, I have to use this AC/DC module, looking at the typical application circuit, the EMC recommended circuit recommends:
- for the input - green ring 15mH 2.5A T12 x 7 x 6 CMC
- for the output - green ring T13 x 8 145uH CMC
the module operates on a 65kHz switching frequency.
I am struggling to pin point what kind of choke I should be looking at? is the max current enough information to pick the cheapest choke in Digikey?
what should I be looking at in terms of picking a common mode choke for both input and output of this circuit?