![]() ![]() Question: what is my mistake? I assumed that the matter is in N (it is not clear whether this is the number of turns of the primary winding, or this is the transformation ratio (but it is denoted by a small n)) I also tried to remove the square from N, but this is still a very large gap. This is closer to true, but still a very large gap. ![]() Next, I tried replacing N with the transformation ratio (n = 1.5), I got 15.46mm of the gap. Substituting these values into the formula, I got 2.2 meters of the gap, which is clearly incorrect. Lm = magnetic inductance (my goal - 60uH) There is no particular information on this, but I assumed that: u0 = Vacuum permeability (4π×10−7 H/m)Īe effective area (PQ5050) = 328mm2 (Core datasheet) ![]() To achieve a certain value of the magnetizing inductance (Lm), we can adjust the transformer air gap. ![]()
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