Transformer and Magnetization Inductance

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
• Blocking Oscillator - ...
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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
• More on transformers, ...
electronics.st....
e2e.ti.com/sup...

[@AllElectronicsChannel]

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[@pyrokinetikrlz]

as an RF engineer, i have been "indoctrinated" about thinking about inductors as stuff that "integrate" the voltage waveform (inductor impedance is jwL). Thanks to your video, i was reminded of the more physical explanation of what it is actually doing! Thanks!

[@AllElectronicsChannel]

Thanks for sharing!

[@saberx77]

A really excellent video Gregory. Thank you!

[@AllElectronicsChannel]

Glad you liked it!

[@louco2]

Muito Obrigado Gregory!

[@weinihao3632]

Great Video, Gregory!

[@AllElectronicsChannel]

Glad you enjoyed it

[@DoniSouzazs]

Incredible talent with techniques..👍👏👏

[@AllElectronicsChannel]

Thank you so much 😀

[@electgpl]

Very nice video! and channel! Regards from Argentina!

[@AllElectronicsChannel]

Thanks and welcome!

[@xMonts]

Very usefull video! I ask, so how to calculate the Lm inductance? Cause I don’t get if in your example, the Lm is 200uH (100 by primary and 100 by secondary) or something else. Thank you!

[@two_number_nines]

This video doesn't state it loudly enough that an ideal transformer works for DC just as well as with AC. Sam Ben-Yaakov's video starts off with that fact and then explains the necessity for AC as something caused by the magnetization inductance of a real transformer.

[@AllElectronicsChannel]

I would love a collab with Ben !

[@two_number_nines]

@@AllElectronicsChannel yes, you, Ben and FesZ electronics are some of the most underrated yet very important channels

[@stefano.a]

that is not DC.

[@jimhenderson9199]

Yes not Dc but rather looks to involve a dc voltage source and a switching event

[@byronD-r3b]

This is great but you could make it a bit shorter, you spent good 7 minutes saying the same thing in circles that the ideal transformer is not a real transformer.

[@AllElectronicsChannel]

Thanks!