SMPS Flyback Converter :Primary Current density Calculation & WireSize Selection

[[email protected]]

Hello Every body :

I have two questions :

How to calculate the primary current desity and select good wire size
to winding the transformer .

if you have a formula , please let me know , Thank you very much ...

 

[Jan Panteltje]

Hello Every body :

I have two questions :

How to calculate the primary current desity and select good wire size
to winding the transformer .

if you have a formula , please let me know , Thank you very much ...

http://schmidt-walter.eit.h-da.de/smps_e/smps_e.html

 

[qrk]

Hello Every body :

I have two questions :

How to calculate the primary current desity and select good wire size
to winding the transformer .

if you have a formula , please let me know , Thank you very much ...

To select wire size, I suggest reading "Soft Ferrites" by E.C.
Snelling. While not an easy book to digest, it does cover proximity
effect which seems to be left out of many discussions.