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-   -   Inductor design: Minimum or effective area? (http://www.diyaudio.com/forums/power-supplies/220215-inductor-design-minimum-effective-area.html)

treez 23rd September 2012 08:29 AM

Inductor design: Minimum or effective area?
 
Hello,

This inductor core has a very different minimum area than its effective area.......

http://www.ferroxcube.com/prod/assets/rm14ilp.pdf

...which one do i use? minimum or effective?.

By the way, I use the core area in the calculation to see if it will saturate.....


I(saturation) = B.A.N/L

B = flux density at saturation = 300mT
A = core area (the subject of this question)
N = number of turns
L= inductance

demeterart 23rd September 2012 09:16 AM

hello treez

it is more accurate to use the minimum area for flux density saturation (3000 gauss in your case) while use the effective for form factor, reluctance and inductance.


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