Joule Thief 101

[MileHigh]

Brad:

Some advice:  If you are going to post a diagram, and least try to have what you see in the diagram make sense.  In your diagram the output waveform shown does not match the physical setup shown, it's a mistake.

Indeed I am being somewhat picky here, because most people will understand what is going on.  The problem is that often enough you are dealing with people that don't understand what is going on and therefore they can easily be misled and confused by confusing graphic images that have errors in them.

MileHigh

[Grumage]

Twas spelt like this when I went to school !! 

"Coulomb's law, or Coulomb's inverse-square law"

Typo?

Cheers Grum.

[MileHigh]

I have found that there are two very specific geometries that one should look for, specifically:

            *  (a) where the point of maximum flux change is not coincident with the point of maximum flux density, peak voltage is just before and just after TDC.  (Two voltage nodes centered by a current node)
            *  (b) where the point of maximum flux change is coincident with the point of maximum flux density, peak induced voltage will be at TDC.  (Two current nodes centered by a voltage node)

Regards

Erfinder:

If you are going to talk about geometries and the outputs you can get from those geometries, then please go ahead and put up some physical and electrical diagrams of the setups that you are discussing along with voltage and current timing diagrams that illustrate exactly what you are saying.

What you are saying is cryptic, and I am not convinced of what you are saying at all.  However, you seem to be stating things in relatively simple terms.  Hence the request to explain precisely what you mean with the aid of associated mechanical/electrical diagrams and their voltage and current timing diagrams.

Thanks,

MileHigh

[minnie]

   I can see this as becoming known as the "Junkie-Tinman Law"

[MileHigh]

   I can see this as becoming known as the "Junkie-Tinman Law"

LOL

And here is the "Postulate of Blank Stares:"

What if ϕ_B is 4?

What if ϕ_B is 17*(sqrt(t))?

What if ϕ_B is A*cos(omega*t)?

What if ϕ_B is K(t^3.67)?

What if ϕ_B is B*sin(omega*7t)?