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DC to DC
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alizare368:
Hi
I design a dc to dc board ,that has an inductor of 47Uh , 5A ,when I use a Ring ferrite core, it doesn't get too hot .for simplicity, I used the design  EE16 core , but it gets very hot.

what is the problem?
Do you have any Idea?

Attached photo.
Zero999:
The wire appears to be on the thin side.

Please post a schematic.
Buriedcode:
Is the core gapped? What is the core material? 
alizare368:
hi
thank you for your help.
the core doesn't gap and the core material is ferrite .

Psi:
There are many different types of ferrite cores. Some will need a different frequency. Some will not work at all.

Your E inductor core is much smaller than your ring inductor core.
It maybe that the E core is too small to handle that much current.

Ring cores are very efficient shape, to get the same performance from an E core it needs to be bigger.
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