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LTspice coupled inductors

I am working in LTspice with a triple coupled magnetic inductor. I chose the factor of coupling to be 90%. L_1 is 1000uH so the uncoupled energy should be 100uH. How does the 100uH energy distribute over those 3 inductors? What would be the series leakage for:

  • L1
  • L2
  • L3
  • L4
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  • \$\begingroup\$ As k=0.9, at what frequency do you want the distribution of energy? \$\endgroup\$
    – Antonio51
    Commented Jul 8 at 9:17
  • \$\begingroup\$ @Antonio51 The frequency is 100kHz \$\endgroup\$
    – i33SoDA
    Commented Jul 8 at 9:49

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With a factor like kc=0.9, energy should be low, and bandwidth should be "low" ...
You should use "inductor" something like this.

Simulated with "AC Analysis" with microcap v12, the parasitics capacitors and resistors at "minimum", the distribution of energy is like this one ...

enter image description here

At 100 kHz, lost energy should be "high", quasi 20 dB for output vb.

If you take a k higher, it should be better ... and bandwidth too.

enter image description here

enter image description here

And in case of coupling are all "different" for the three inductors ...

enter image description here

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  • \$\begingroup\$ Wow. This is much more than I could ask from an answer! Thank you very much! \$\endgroup\$
    – i33SoDA
    Commented Jul 8 at 10:42

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