Joule Thief 101

[Pirate88179]

Bill - You only half done the job:



Well is Fair Fair?

   Chris Sykes
       hyiq.org

That is TK defending himself against your "claim" that he was a paid disinformation agent or whatever.  That alone is quite an accusation and a man should always be able to defend himself.  He made no comments about your mother, ancestry or body parts so, I have no problem with TK's post.

Please just attack ideas and data and not the individual.  I know that gets hard to do at times as we are all passionate here, which is good...but, and I say this to MH and Brad as well, do not let it get personal as that is bad and, it does not get anyone anywhere.

Thanks,

Bill

[tinman]

Well-that was fun

Anyway,in regards to my question (that was meant for minnie--who did not answer),the below is of course correct,where the wave form is correct for the circuit and scope prob placements on that circuit.

Please remember--the question was specific for the attached schematic,and i only asked if the wave form was correct for that schematic.
It was only a simple question directed at minnie,due to his comment about me needing to learn more about basic induction. Minnie was also the only one that did not answer the question.

Brad

[EMJunkie]

That is TK defending himself against your "claim" that he was a paid disinformation agent or whatever.  That alone is quite an accusation and a man should always be able to defend himself.  He made no comments about your mother, ancestry or body parts so, I have no problem with TK's post.

Please just attack ideas and data and not the individual.  I know that gets hard to do at times as we are all passionate here, which is good...but, and I say this to MH and Brad as well, do not let it get personal as that is bad and, it does not get anyone anywhere.

Thanks,

Bill

Bill - Very mature response! Thank You for that.

Fair bit of Love shown for TK however. But as you stated, Its about the Facts, real Science and proving the Lies Wrong!

So, back to it.

Lie: Current is EMF and part of Faradays Law of Induction - This is a lie and I have proven this: Click Here

Truth: EMF is defined in Coulomb's of Charge (C), which is a Quantity measured in Volts (V) - This is a completely True and I have proven this: Click Here

Most every single book in the universe and every single person with any qualification knows that: The E.M.F that Faradays law of Electromagnetic Induction predicts, that Heinrich Lenz himself clearly shows, and is incorporated into every single equation of Faradays Law of Electromagnetic Induction, being the (-) Sign, infering and a total reversal of Sign, that: Lenz's Law 180 out of phase to the Source.

E.M.F = -N dϕ/dt

Where:

E.M.F as is clearly shown, is Coulomb's of Charge (C), which is a Quantity measured in Volts (V).
The Negative Sign (-) is the SINE of the Phase relationship as stated by Heinrich Lenz himself.


Simple Calculus:

            int width = this.pictureBox1.Width;
            int height = this.pictureBox1.Height;

            Bitmap b = new Bitmap(width, height);
            Graphics g = Graphics.FromImage(b);
            g.Clear(Color.White);

            for (int i = 0; i < width; i++)
            {
                int y = (int)((Math.Sin((double)i * 2.0 * Math.PI / width) + 1.0) * (height - 1) / 2.0);
                b.SetPixel(i, y, Color.Black);
            }


            for (int i = 0; i < width; i++)
            {
                int y = (int)((-Math.Sin((double)i * 2.0 * Math.PI / width) + 1.0) * (height - 1) / 2.0);
                b.SetPixel(i, y, Color.Red);
            }

            this.pictureBox1.Image = b;



Where the only thing that has changed from the Black to Red wave form is the (-) sign before the Math.Sin part.


See the Simple Picture: "Some SIMPLE Calculus.png"


So, once more, because I like the look of it, I need to reference:

Electrical Science for Technicians

Ref: Electrical Science for Technicians: Page 198

There is no such Phase Angle of ±90 Degrees that is related to the EMF, that is predicted by Faradays Law of Induction, at all. It is ±180...


   Chris Sykes
       hyiq.org

[tinman]

Brad, as I've demonstrated in a video a few pages back, and as we know, the total phase shift that can be measured depends somewhat on the frequency of the oscillation, because different core materials respond differently and there will always be stray inductances and capacitances caused by wiring. SO I had to increase the frequency of my test setup to get the perfect relationship shown below.

I'm using the same setup as in my previous demonstrations, using the random ferrite-cored transformer, except that I am testing two conditions.

First, the transformer secondary open, just connected to the scope probe, so I am testing the _voltage_ across the secondary, unloaded. This produces the first scopeshot below: The 90 degree phase relationship between the applied primary current (i.e. the magnetic field) and the secondary's induced _voltage_. And as I've shown, this nice 90 degree relationship holds across a wide range of applied frequency. (30Hz, 1 kHz, and in the shot below, around 700 Hz.)

In the second scopeshot below I have attached a 1.0 ohm precision non-inductive resistor directly across the transformer's secondary, and then the probe across the resistor. So the resistor is acting both as a load, and its own CSR. Now the scope probe is measuring the _current_ as a voltage drop across this resistor.

As I said, I had to increase the frequency to make the _current_ phase shift look so accurately 180 degrees. If I perform this same comparison test at 30 Hz, I "only" get a total phase shift of about 140 degrees for the _current_, while the _voltage_ phase shift remains at 90 degrees-- as I showed earlier.

Thanks TK for doing these test,and yes,frequency has a lot to do with phase angles.

But i would like to show you a way of changing the phase relationship between L1 and L2 without changing the frequency. This also has the effect that when the two current flows of L1 and L2 are bought into phase with each other,the power drawn by L1 becomes less,and the power delivered by L2 becomes more. We will do this by way of an oscillating PM,where although L1 is the source of energy for the oscillations of the PM,the PMs field will return a higher energy amount to L1 than L1 consumed to oscillate the PM in the first place.

If you are interested in building this simple setup,and working along with me to explain what is taking place within the DUT,then let me know,and i will post a video here- of the DUT,and the effects i am getting.

I have taken into account increasing inductance,reduction in impedance --most of what i can think of,but still the results do not add up to what is taking place--so need a good set of eyes looking at,and working on this.

Due to the fact that this is not a JT setup,i (we)will be shifting to the mechanical resonance thread after initial tests are carried out.


Brad

[tinman]

That is TK defending himself against your "claim" that he was a paid disinformation agent or whatever.  That alone is quite an accusation and a man should always be able to defend himself.  He made no comments about your mother, ancestry or body parts so, I have no problem with TK's post.

Please just attack ideas and data and not the individual.  I know that gets hard to do at times as we are all passionate here, which is good...but, and I say this to MH and Brad as well, do not let it get personal as that is bad and, it does not get anyone anywhere.

Thanks,

Bill

Done.


Brad