Beyond Unity - Non Linear Resonance

Jagau posted this 14 December 2023

I transferred my thread on Non Linear Resonance here to BeyondUnity.org

beyond-unity nonlinear resonance

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Jagau posted this 21 February 2020

Good morning all:

In this sixth day of experimentation I have built since yesterday a second circuit which works just as well as the first so we can replicate it.

I build this test circuit with larger batteries and the power is evident on the LEDs. The goal is to slowly increase the power to make it shine with an incandescent lamp.

Jagau

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UndisclosedMember posted this 21 February 2020

Hi Jagau. Does your replication use again a pot core? Have you try with another type of core? Ring, rod, metglass, ...

Thank you!

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Jagau posted this 21 February 2020

Hi wistiti

You understand that I would like to improve this circuit which works in very low power with a larger one, so as not to change a winning combination I have to replicate exactly the same with a potcore.
However I would like to know if another has succeeded with a different core.

Jagau

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Jagau posted this 21 February 2020

Hi all

One of the advantages with this kind of auto oscillator is that it does not waste energy in order to produce a pulse.
The frequency is determined by the RC network which produces a constant time with the 200Pf capacitor and the input impedance Z of the coils to pulse.

With this capacitor we can oscillate between 20khz and 130khz, so resonant frequency is egal to 1 divide by ZC

in other words it adjusts itself

Jagau

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Jagau posted this 21 February 2020

n this project we have to consider 3 key elements.

The first is the nonlinear resonance, as demonstrated by the thread

The second is the theory of "YoElMiCrO", which speaks of the negative slope in ferro-resonance

Yo quote:
Voltage increase is related to the negative slope that has the magnetic permeability of the core

the third and very interesting one is by Edwin Gray on electrostatic transfer while sharing the positives.

This is a lot to check but should be checked,

Jagau

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YoElMiCrO posted this 25 February 2020

Hi everyone.

I could not be active in the forum due to work problems.
But whenever I can go to review all the findings they find.
This is a community like no other on the net.
I think I can continue with the experiments I left a while ago.

@Jagau.
If you don't mind, I pass a circuit with which you can see
the behavior of the back emf when it returns from the negative slope in this treat.
As Vidura says, in conventional designs it is forbidden to saturate
any ferro-magnetic core.
Now...
If we start thinking ...
It turns out that in the linear region of the hysteresis curve, during the ton cycle
B grows and permeability grows too.
but when we turn off the sw the current drops (-di / dt) but the permeability too.
However, if we make permeability pass through its negative region during
Ton cycle, when Toff touches the current will fall as before, only the permeability
It will increase now.
If the inductance grows during Toff and the current remains relatively constant, we can
Have an energy gain.

Thank you all in advance.

YoElMiCrO.

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Jagau posted this 25 February 2020

Hi Yo

You are always welcome for your comments Yo.
As you can see in my first experience at the start of the thread, I noticed this effect you are talking about,

when the inductance grows the frequency decreases, is that what you mean?

Jagau

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YoElMiCrO posted this 25 February 2020

Hi everyone.

@Jagau.

Yes, that's what happens.
It turns out that Ton's time is compressed, because the current that is
reflect of the load is the component that defines the static path in the circuit.
For stable operation, this current must remain constant throughout
at this time, it should be noted that the turn ratio should be calculated using
Biot-Sabart's law and not Faraday's.
On the other hand, during the Toff cycle said primary peak current should
fall to 0, in turn the magnetic permeability of said core (ur) when returning from the
negative slope until the value you have for Br will increase the primary inductance.
In this way the time of Toff expands, being a non-linear process and not fulfilled
volt-second equations (VpTon) = (VfbToff).

In the shortest possible time I climb the circuit, thank you.

YoElMiCrO.

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Jagau posted this 25 February 2020

Hi Yo

Completely agree with you the law of BIO-Savart is that which we must use in the cases of non linearity and in time variation, the law of faradays is for the very linear systems in closed loop.

Your future circuit to come look very interesting.
Thank you for your comments.
Jagau

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YoElMiCrO posted this 27 February 2020

Hi everyone.

Yes, we all know that the rise / fall time is controlled by the current
of the gate, forget about the 500 Ohm resistor, just to adjust that time.
You adjust it after having Ton and frequency, looking for the least noise in the way
of drain wave.
It occurs to me that we can use the miller capacity of the mosfet, I'll try!

Thanks in advance.
YoElMiCrO.

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