Magnetic circuits and SPICE: a practical example: Part I of two parts

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Reluctance, LLC, converters, power supply, integrated magnetics
  1. Sam Ben-Yaakov
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Outstanding analysis, most informative!

ricksampson
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Good lesson! But is there more easy explanation for more easy magnetic circuit: for example - toroidal core with two windings (maybe with magnetic gap). I did some simulation of ferrite transformers in past - but I can`t remember it...

andrewandrosow
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Great video as always from Prof Sam. I just wanted to ask about you mention in the video @15:54, Is the gap in the middle increases the leakage inductance and gap in the end decreases the magnetising inductance ?

billimew
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On a related note, do you know of a way to measure the power dissipation in an inductor in LTspice? I've noticed that if I do the usual Alt-Click on the inductor, it seems to treat the energy stored in the magnetic field as dissipated energy, resulting in completely unrealistic numbers.

gsuberland
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why do you want to time 1k for LT2 and LT1? could you please explain?

kingdog
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why do you need the middle section at all if the coupling coefficient gets better with large gap in the middle ?

perceptron
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Hi. I was trying to recreate the model (mostly just for fun and to try LTspice). It seems like you have a typo here: R2 should be equal to (10-lg2)*Kf. 2nd thing, not sure why, in-model current references like {-n1*I(V1)} did not work at all for some reason.

sergpodolnii