Selecting Inductor For Switching Power Supply - Not everyone knows this

When using inductor consider also material, height, rotation .... Explained by Carmen Parisi.
Watch the full video here:
- How to design perfect switching power supply • How to design perfect ...
Links:
- Carmen's LinkedIn: / carpar
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[@fixfaxerify]

Wasnt aware of shielded inductors but it seems similar to how film caps have an outer foil end that acts as shielding when connected to ac ground. Cool:)

[@luisalbertoparada5757]

excelente clase.... saludos desde Barquisimeto Venezuela

[@krish2nasa]

Very informative and interesting. Thank you very much.

[@Stabby666]

One thing I’ve been wondering lately is it there is an advantage in removing the ground pour under and inductor. I was going to spin some boards for testing and his but it would be good to know if there are any papers about it. The example layouts don’t show this and it’s not mentioned in the ones i’ve read.

[@HgO3107]

I think Zach Peterson address this particular issue in one Altium video series.

[@2arc.]

It depends on the quality of the manufacturer in the process. For example, if you fill it with copper and distribute vias under the inductor, during the welding process it may occur that the solder deviates from the inductor pad. But nowadays this is very rare to happen. Now, if the problem is whether there will be a magnetic field leak, I have seen PCBs with 4 layers, the layer immediately below the inductor was not filled, but all the other layers were. Nothing that impacts the operation of normal household equipment anyway.

[@jumadhaheri]

Interesting , this is great to know

[@godofclash2517]

is there guarantee that marked pin of inductor is connected to internal turn of winding

[@2arc.]

Yes, it's guaranteed. Take TDK for example. However, at high frequencies and low inductances used in SMPS today, I see no relevance to the polarity of the inductor.

[@PankajKumar-zr3tv]

You are god of hardware