Beyond Unity - YoElMiCrO's Ferro-Magnetic Resonance

YoElMiCrO posted this 09 February 2024

I transferred my thread on Ferro-Magnetic Resonance here to BeyondUnity.org

beyond-unity ferroresonance

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Vidura posted this 10 March 2020

Hey Friends.
Let me remind you that in this thread Yoelmicro has shared a really very valuable theory, it can be easily tested by replicating the simple circuits. It is particulary useful as it allows us to understand the mode how the excess energy is tapped into the device, what are the required parameters and the properties of the magnetic materials to make it work. there are the formulas to calculate the working point of the inductor, and a test circuit to find the best working point, static and dynamic. Now it is up to us , to grasp it or leave it.

I really would encourage all following to do some testing on this, also think about how this data could fit into the particular device which you are working on actually. You might find that we can progress in huge steps if our knowledge becomes more complete.

I wish success for all of you,

regards Vidura.

Vidura

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Jagau posted this 10 March 2020

Hi yo
I'm trying to reproduce your demo circuit with the attached circuit
who is named '' Hysteresis measuring arrangement with a digital oscilloscope ''

for those interested there is also a circuit on the same site for analog oscilloscopes and other circuit.

https://meettechniek.info/passive/magnetic-hysteresis.html

Jagau

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Vidura posted this 12 March 2020

Hi, I have tried the ferroresonant test circuit with a silicon steel core, it works also, as the hysteresis is cuadratic. The wave forms are slightly different, but the effect is the same. Tomorrow I will upload some pictures for documentation. Thanks Vidura

Vidura

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Jagau posted this 12 March 2020

Hi Vidura

These new technologies are fascinating to study,
do you use the non-oriented silicon steels or the oriented steel ??

probably the non-oriented ones which are more versatile

Jagau

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Vidura posted this 12 March 2020

Hey friends,
find here the images from the ferro resonance test with a silicone steel core. It is a part recycled from a stator of a universal motor, a toroid in two halves. Unexpectedly the frequency for the best working point was much higher than in the previous test with the ferrite, around 25khz. Although the core remains cold all the time.

The upper trace is the voltage on the second lightbulb, the lower trace on the mosfet drain.

the last shot current thru the bulb(5A/div) vs. voltage(upper trace)

Regards VIDURA.

Vidura

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UndisclosedMember posted this 12 March 2020

Nice work Vidura,

What Circuit did you follow? I see there is no extra circuitry like YoElMiCrO shows.

Thanks for sharing!

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YoElMiCrO posted this 12 March 2020

Hi everyone.

@UndisclosedMember.

The first circuit of the post is the one that Vidura replied.
I think I understand the principle on which the Akula / Others circuits are based.
Although it is not the same as a study, it has part of it.
Prepare a hardware to assess if I'm wrong or not.
This is the physically performed circuit.

This end I will have a little time to evaluate.
I will keep you informed.
Thank you in advance.

YoElMiCrO.

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UndisclosedMember posted this 12 March 2020

Thanks for sharing YoElMiCrO!

I am super happy others are working on this! Although there might be differences, I think in the end, we will find many similarity's also.

Some time back, we did cover the Knee of the BH Curve in the thread: Non-Linear Inductance

I believe there must be a Core to Coil Interaction here. This action and Interaction pair must do the same thing, the Inductance Changes with the Magnetic Field, its not hard to see the Magnetic Field Change here. At its base level, this is Non-Linear Inductance.

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Jagau posted this 12 March 2020

Hi yo

thank you for sharing your knowledge YO, it's very appreciated by everyone here

I would like to be able to replicate this circuit which contains a crystal with multiturn pot and 2 Ic.

Did I miss circuit somewhere?
Jagau

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YoElMiCrO posted this 13 March 2020

@Jagau.

No, the circuit is not on the NET.
I designed it just to start evaluating if it's how I theorize that
the circuit that owns two Akula TL494s works.
It is not the final circuit, use a PIC for calculation problems,
so I can solve the possible operating points.
Anyway here it is.

Thank you all in advance.
YoElMiCrO

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