Modify electric fence circuit from 1Hz to about 8Hz output

Thread Starter

fueldahl

Joined Jun 28, 2023
4
Hi! I'm looking to for some input on how to change an electric fence circuit from about 1Hz (standard) to about 8Hz (7.83Hz is my goal). I am not using the fence circuit for livestock - I am amplifying the Schumann Resonance with this circuit and putting it through a Rodin Coil for broadcast. Everything I need is right here, solar panel, batteries, switch, fuse, circuitry. Any input would be much appreciated!All the components.jpgcircuit board front.jpgcircuit board back.jpg
 

MaxHeadRoom

Joined Jul 18, 2013
28,020
You would need to reverse-engineer the present circuit. quite the undertaking?
Probabally easier to come up with a DIY version, I made one ~ a year ago using a automotive coil and a 8 pin microchip.
 

Dodgydave

Joined Jun 22, 2012
11,147
The chip looks like a LM358 op-amp, so that will be setting the frequency of the pulses, if so it's a matter of tracing which resistor and capacitor are associated with the pulse rate.
 

Thread Starter

fueldahl

Joined Jun 28, 2023
4
You would need to reverse-engineer the present circuit. quite the undertaking?
Probabally easier to come up with a DIY version, I made one ~ a year ago using a automotive coil and a 8 pin microchip.
I guess....I have a circuit creating the Schumann Resonance, but the output is very weak, even through an automotive coil it is still just 200mV. I'd love to have maybe 5 or 12V output prior to my ignition coil!
 

Thread Starter

fueldahl

Joined Jun 28, 2023
4
The chip looks like a LM358 op-amp, so that will be setting the frequency of the pulses, if so it's a matter of tracing which resistor and capacitor are associated with the pulse rate.
LM393N chip...Which output/input from the chip should I trace?
 

MisterBill2

Joined Jan 23, 2018
16,473
There are a few hundred 8-pin IC types and so I make no guess except that pin #4 is one power pin. But since I se no obvious processor IC probably there is a simple RC time-base that can be increased by changing either the R or the C. Making that change will require using an oscilloscope to locate the correct R and C components to change.
BUT increasing the pulse rate will demand more power from the power supply of the pulse power supply. That might demand some further revisions of the power supply part of the device.

What is " the Schumann Resonance " and what is creating it supposed to do for you?? If it is simply shock exciting a resonant circuit, that seems like a Barkhausen oscillation, although maybe just something similar.
 

panic mode

Joined Oct 10, 2011
2,524
get better image of the IC. it looks like dual comparator or an opamp. one of the units is likely square wave RC oscillator so adjusting RC values would change frequency. also try taking righter and sharper images, resistor colors are smeared, some parts are standing up and top side tracks are hard to follow.
 
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AnalogKid

Joined Aug 1, 2013
10,776
An electric fence circuit makes a DC pulse (a unipolar voltage spike), while a Rodin coil requires AC. Assuming you want as few high-frequency harmonics as possible, then you want a low-frequency sinewave generator, not a fence charger, followed by what is basically a sub-woofer audio power amplifier.

If building an oscillator circuit is beyond your skill set, there almost certainly is a phone app for generating sinewaves.

There are several reasons given for this type of broadcasting. What are you trying to achieve?

What is the impedance of your Rodin coil?

Please post your circuit mentioned in post #5.

ak
 

Tonyr1084

Joined Sep 24, 2015
7,543
Not being familiar with the "Rodin coil" I looked it up. One site (below) claims once it's turned on it never needs to be turned off, and is self sustaining. It's referred to as "The Rodin Coil Transformer Over Unity Energy Amplifier" which I do not believe "Over Unity" is possible. Being ignorant of the whole thing, I don't know if there are any other uses for it.

Someone want to explain how we can be talking about over unity?

https://wikifactory.com/@botler/rodin-coil
 

Alec_t

Joined Sep 17, 2013
14,005
I am amplifying the Schumann Resonance with this circuit
An electric fence circuit is a pulse generator, not a signal amplifier.
putting it through a Rodin Coil for broadcast.
How big is your coil? An efficient antenna suitable for broadcasting an ~8Hz signal over any significant distance will need to be HUGE!

I hope you're not trying to copy the setup in some scam video you've seen.
 

Ian0

Joined Aug 7, 2020
8,938
Not being familiar with the "Rodin coil" I looked it up. One site (below) claims once it's turned on it never needs to be turned off, and is self sustaining. It's referred to as "The Rodin Coil Transformer Over Unity Energy Amplifier" which I do not believe "Over Unity" is possible. Being ignorant of the whole thing, I don't know if there are any other uses for it.

Someone want to explain how we can be talking about over unity?

https://wikifactory.com/@botler/rodin-coil
Just free energy?
the website I found
https://thegoodhuman.com/what-is-a-rodin-coil/
says it will cure all diseases and put an end to hunger.

Who would have thought you could do that just by slightly changing the way you wind a toroid?
 

MisterBill2

Joined Jan 23, 2018
16,473
For a circuit current to be maintained you need superconducting materials and super low temperatures.
So I am asking again what is the ultimate purpose of this effort?? Where will you get that material, and how will you keep the very low temperatures. Spoiler Alert: Copper is not a superconductor.!
And please explain how a Rodin coil works.
 
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