Is joule thief circuit gets overunity?

[MileHigh]

Fausto:

I can give you a generic answer and then you or someone else can punch in the numbers.  I don't know the coil specifics myself.  The Hyperphysics web site has the formula for determining the inductance of an air-core coil based on the number of turns and the dimensions of the coil.  That formula is created by using calculus and doing a derivation.  So that is your starting point.

Then when you drop the big rotating magnet inside the coil it is likely doing two things.  As it rotates it generates EMF in the coil.  At the same time it may increase the inductance because it may offer some magnetic domains that can flip - i.e.; increased permeability.

The other parameters of interest are the resistance of the coil and the output resistance of the battery source.  The internal resistance of the battery source is probably negligible and can be ignored.

To keep it simple you can ignore the rotating magnet for starters.  All you need is the coil resistance and to punch in the numbers into the formula on the Hyperphysics web site.

I don't think 270 volts will pass even 5 mili-amps of current.

You sentence above is not well worded.  May I suggest that you look up "RL circuit" on the Hyperphysics web site or on Wikipedia.

MileHigh

[MileHigh]

Fausto:

I want to address this issue very seriously.

I have much more respect for those that SHOW work and not only talk.

I see that comment mentioned all the time by many people and I never say anything but this time I will say something.  I also noted you made some sort of comment a few days ago like "I have to go back to WORK on the bench" or something like that.

The implicit message is that you disrespect people that comment but don't show any experiments.  The other implicit message is that you can ignore the knowledge of people that aren't actively doing bench work.  It's almost like it's an excuse to feel justified in ignoring things that you don't want to hear.

For me personally, it's been more than 20 years since I worked on a bench for real work, to make a living.  What I can tell you in all seriousness is that even after 20 years, when it comes to working on a bench,  I could spin circles around you with my eyes closed.  That's an expression in English that you probably know, it means that my skills on a bench are excellent, they are far beyond your current level of understanding.  I could also spin circles around John Bedini and Joe Newman.  If you don't believe me just ask TK and Poynt99.  They can tell you what my bench skills are just from reading what I have posted over the past four years.

Don't underestimate my bench skills whether it be with an analog scope, a digital scope, or a logic analyzer, or a frequency spectrum analyzer.  I know what I am talking about, but at the same time I am fully aware that there are limitations when you don't have the equipment in front of you.  However, for the majority of cases, I am just fine commenting on what I see and my analysis is correct and accurate.  What you are doing on your bench now, I was doing similar things more than 30 years ago.

MileHigh

[ltseung888]

Another file to confirm that producing overunity devices is now a piece of cake.


This file used the DC Power Supply.  The DC Power Supply Voltage was increased from 0 V to light the LED to an acceptable brightness.  In this case, the DC Power Supply Voltage reading was 0.5 V.


The Output Voltage frequency was allowed to increase to 3 KHz before the oscilloscope readings were taken.


Enjoy and Bless the Almighty.  Replications are welcome.

[TinselKoala]

Are you even reading my posts?

You _cannot_ have this circuit connected to a power supply or ANY mains-connected instrument while you are evaluating it, especially a power supply. Even your scope reference leads must be isolated from each other and from the mains and Earth grounds.

You _cannot_ use the power supply's meter readings as data.

That is, if you care for accuracy at all.

[ltseung888]

Are you even reading my posts?

You _cannot_ have this circuit connected to a power supply or ANY mains-connected instrument while you are evaluating it, especially a power supply. Even your scope reference leads must be isolated from each other and from the mains and Earth grounds.

You _cannot_ use the power supply's meter readings as data.

That is, if you care for accuracy at all.

I let the top Universities worry about accuracy.  The Atten Scope has its limitations.  It also gives the top Universities an excuse to get involved.  They want to look good and helpful.  Any indication of overunity is acceptable to me.  A 6.x value is more than good enough for me.  Let the Universities worry about the values after the decimal point.
I shall do "indication" experiments.  Give room for others to shine.  You can shine too.  You probably can get access to better DSO than the Atten.  If you desire, I can send you one of the oscilloscope-test-ready boards.  In that way, you do not need to raise objections and guess what I may do wrong all the time.