3/29/2024 0 Comments Ferrite core inductor formula![]() I'm concerned about being able to estimate the required turn count as the gap size determines the effective \$A_L\$. Sand down one of the center posts carefully. ![]() Easy, but the coil is supposed to be centered on the gap (right?) and it won't be centered on the outside legs. Kapton tape) as a gap material on both the inner post and outer legs. How can I add a gap to the core without compromising performance? I've come up with a few methods listed below, but I'm unsure what is "best". ![]() So I think I want to add a gap to the pre-existing core. However, the core is large enough that if I could decrease the \$A_L\$ I would have a viable design. Running the calculations for this core, it looks like with the \$A_L\$ value listed, I will saturate the core before reaching my target design current. I have found a core size/shape that appears to work except I can only get the core in the material I want ( N49) in an ungapped core (s = 0 in the image below). I'm in the process of designing an inductor for a boost converter, and I'm having a hard time finding exactly what I need for this project.
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