SMPS Flyback Converter :Primary Current density Calculation & Wire Size Selection

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 ...

Reply to
spencer_chen7
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On a sunny day (Fri, 16 Nov 2007 01:39:37 -0800 (PST)) it happened spencer snipped-for-privacy@hotmail.com wrote in :

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Reply to
Jan Panteltje

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.

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Mark
Reply to
qrk

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