Joule Thief 101

[Magluvin]

Just quickly went to 6 turns shorted and the freq went up to 495khz and the battery went up to .52v. 

9 turns brings it up to 943khz and batt is bouncing .48 to .52v.

Fun fun fun.

Mags

[Magluvin]

Popped in another batt at .9v. 11 turns is at around 641khz.   So with these, from what I see, the freq goes up as the batt dies.

Mags

[Magluvin]

Starting to see some ringing on the batt at these freq. The last scope shot you can see it a little in the blue trace.

Gotta go back to work

Mags

[allcanadian]

@MH

OMG!  You had secret-sauce-o-gasm!

lol, that was a pretty creative response... I like it.


I agree we should try to hold to reality however reality is a brain fart. You are an aggregate of 1% matter moving about near the speed of light separated by EM fields. You cannot feel or sense or think anything anymore that a telephone wire can because all our supposed senses travel as electrical signals to the brain. The brain is simply a bunch of specialized cells, atoms and molecules, which coordinate and store these electrical signals we call our mind and memories. As such technically speaking by your own logic... you cannot exist.


I mean if everything is just the same-same thing, an unintelligent soup of atoms and molecules then how do you explain what you see in the mirror each morning?. You have no idea, nowhere to even begin to explain what or why you are and yet my little ramble on remnant magnetism is far fetched?. As such I think your logic is severely flawed, you have absolute proof all is not as it seems and some things can be much more than the same-same simple sum of it parts... you are that proof. Unless of course you deny your own existence in which case I cannot help you, nobody can.


It is strange that such a simple truth was always there staring us in the face and yet we cannot see it, we cannot comprehend it and at every turn we deny it. If matter cannot have intelligence then how do you explain yours?. You are tangible proof what you are implying cannot be true, one of you is wrong...poof your mind has been blown.


AC

[sm0ky2]

As far as your analogy goes, you don't have a sample electrical circuit to base it on so that's not too good.  You have yet to show any Joule Thief operating in "resonance" - it's all just talk and talk is cheap.

The inductor acts like a gravity well?  Are you referring to the spring perhaps in an oblique way?  Nor do you have an equivalent to a battery source in your analogy.

MileHigh

Actually, this is not "my analogy", this comes straight from electronics engineering textbooks.
Where-in the Armstrong oscillator is described in terms of its' real-world physical analogy.
The weight on a spring

the "battery" in this case, as examined as a single pulse (one cycle)
is analogous to the "lifting" of the weight through the gravitational field gradient.

E=mgh is equivalent to the electrical potential energy of the pulse in this example.

Take the round hole, and shave it into a square, then maybe your square peg will fit.