Gregory explains the transformer model and how the magnetization inductance behaves in the circuit.
Circuits using transformer are sometimes hard to understand because of the complex behavior of the magnetization inductance and the leakage inductance.
A trick for measuring the magnetization current in LTSpice is given, demonstrating in depth how the waveforms relate to the transformer behavior in an oscillator circuit.
Watch the video about the Blocking Oscillator
https://youtu.be/PIJ3I3o4ANI
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00:18 - Introduction
02:16 - Model of electric transformer
03:46 - Ideal transformer
07:12 - Magnetizing inductance
07:50 - Leakage inductance
13:38 - Magnetizing current
15:20 - LTspice waveforms
References
https://www.youtube.com/watch?v=h9_bzy33xJU
https://electronics.stackexchange.com/questions/136508/magnetizing-inductance-vs-mutual-inductance#:~:text=Magnetizing%20inductance%20is%20associated%20with,how%20the%20test%20is%20performed.
https://e2e.ti.com/support/power-management-group/power-management/f/power-management-forum/752840/measurement-of-magnetising-inductance-of-power-transformer