Measurements of the Magnetic Hysteresis Curve

[@marcdraco2189]

Damnit Fez, will you stop being so damned interesting. I have other things to do - but this is too bloody good and I have to watch!

[@PatrickVanOosterwijck]

I wonder what other "Internet people" you have seen do stuff like this? Yours is the only channel I know that takes such deep dives into understanding, simulating and testing analog electronics down to the physics. Excellent work!

[@tolkienfan1972]

The area formula look's like an application of Green's theorem I'd probably smooth the data first Cool video

[@ahmedzafar-xp3kb]

This is pure gold. Very helpful knowledge.

[@RobertGoldansky]

Excellent video and tutorial!

[@andrewmcfarland57]

Exhausting, but fascinating. 🙂

[@teberer3246]

Hi, Can you talk about Vusec aspect of power inductors, specifically used for pulse generation. Stored energy in the inductor. Which type of cores to use for fast saturation and fast desaturation, keeping in mind cores for low hysterysis loss.Many thanks.

[@mostafanfs]

Dude you're like coming from another planet or something

[@sairamt1790]

Thanks FesZ for the video. May I know please how to model the current transformer with the core for example, primary winding turns Np =1 & secondary winding turns Ns =100? How to simulate the effect of fast transient current pulses (which is high frequency for example 100 kHz) and core saturation. Thanks

[@raphaelcoti692]

Hey ! Nice video ! Since you're talking about the parameters of cores, can you add a frequency measure in the next video please ? Like the F.Bmax product, then you will be able to make measures on cores that you don't know the specs, anyway thanks for this great video !!! ;)

[@Stefanev]

Many thanks! 👍 I will try this at home 😊.

[@otherbasis8505]

Thanks! This is much more more educational than a dry textbook stuff. Question: if I understand it correctly, the circuit you've built is for demonstration purposes only, right? If you have to post-process the data on a computer, integration could have been done on that computer too. Thus the actual setup should just be a sig gen, a shunt resistor, core under investigation, two coils on it and a digital scope. Am I right?

[@FesZElectronics]

Yes, you are right - the integrator is not mandatory as long as you apply post-processing of the data; however, without it, you cannot make the fancy diagram on the oscilloscope :D

[@mr1enrollment]

It would be interesting to repeat this while demonstrating the sensitivity to winding methods. Your example shows roughly separated primary and secondary windings. What would bi-filer winding produce. Better coupling should be apparent. Also tests at various frequencies,...??

[@uwezimmermann5427]

I would have used a second operational amplifier to buffer the VCC/2 - with an effective source impedance of 3.4 kΩ it has quite a high impedance and might shift quite a bit under different load conditions. But certainly a nice success!

[@ghlscitel6714]

Applause!