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Switching Power Supply Tutorial: 4V～16V

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Kynix

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Recently, I have read a article about switching power supply which written by my follower, and I have little confused the third part of it(enclosed the url: https://www.kynix.com/Blog/458.html), especially the calculation formula with its figures, it is imperfect and has some stuff missing. But I don't have the professional knowledge to point the real problems, is there some can give me some advice to check in?


You know when you read something, you must keep a serious mind.

Cheers
 

Hello,
Could you precise what you don't understand exactly in the part 3).
Take a look on this article that explains in details the Transformer Winding Formula:
**broken link removed**
 

in that article, fig 5, the fet drive..it is wrong....15k is too much for a gate drive series resistor
 

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