Partnered Output Coils - Free Energy

[EMJunkie]

By enclosing the Magnetic Field, making the Magnetic Keeper closed loop, as long as it is not saturated, and the Magnets are in Attraction Mode, there is no Magnetic Field visible outside the core.

   Chris Sykes
       hyiq.org

[tinman]

Pictured Below is a very early Transformer, you can see the Primary and Secondary are separated by a distance.

The best way to visualize this, is to imagine: If all the Flux from the Primary were to Leak Out and Not make it to the Secondary, there would be no Induction in the secondary. Conversely, if all the Flux were to Link the Primary and Secondary together then Induction would occur in the Secondary and an EMF would be seen on the Secondary Terminals.

This is why Flux Leakage is typically not desired in a transformer! It is considered as a Loss in the Transformer.

Flux Linking and Flux Cutting are different principals! Both create Induction!!!

   Chris Sykes
       hyiq.org

To me,if there is magnetic flux outside the transformer core,then it is leaking from that core.
To me,linking is joining of.
So ,when you say flux linking,where is this second flux that the core flux links to in regards to the secondary winding?. How can there be a flux linking between the core flux and a secondary coil flux that dosnt exist due to there being no current flow within that secondary coil. In order to have magnetic flux,there has to be a magnetic field,and there will be no magnetic field within the secondary winding until a current flow exist through that winding,and in order to create a current flow within that winding,the winding must be cut by a magnetic field,and thus magnetic flux.

A core that can contain all the magnetic flux(and thus the field)within it's core(the ideal core) would not have the ability to induce inductance into a secondary winding on the opposite side of a toroid core-or any other core where the secondary is not wound with(on top of) the primary winding.

[EMJunkie]

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@Brad - This is Great!!! Sensible Debate!!! See what happens when we get rid of the Distractors of Society...

To me,if there is magnetic flux outside the transformer core,then it is leaking from that core.
To me,linking is joining of.

Exactly!!!

So ,when you say flux linking,where is this second flux that the core flux links to in regards to the secondary winding?.

It is missing from all Textbook theory and Pictures... Well mostly... It appears as Lenz's Law, the emf = -dPhi/dt - Lenz's Law the (-) Sign. One Flux is drawn in Transformer Theory, that of the Primary. See below Picture: Transformer Theory 1.

How can there be a flux linking between the core flux and a secondary coil flux that dosnt exist due to there being no current flow within that secondary coil.

As in the above pictures, a Magnetic Field can be entirely contained in the core, there is commonly some leakage, sometimes around one percent or so, but this leakage is very hard to detect normally. Remembering this is in an ideal core with ideal Coils on it.If one Magnet were the Primary Coil, as in our Picture below "Transformer Theory 1", were carrying a current then a Magnetic Field would be invoked. This we already know, the Flux is mostly inside the Core as was shown. Imagine the second Magnet was the Secondary Coil, Carrying no current, there would be a Flux Linking from Primary to secondary.

When the Secondary Coil carry's Current, the Polarity is Equal and Opposite!!!

In order to have magnetic flux,there has to be a magnetic field,and there will be no magnetic field within the secondary winding until a current flow exist through that winding,and in order to create a current flow within that winding...

Yes, this part is right...

...the winding must be cut by a magnetic field,and thus magnetic flux.

This part is not entirely correct. Flux Cutting and Flux Linking are different beasts!!!

A core that can contain all the magnetic flux(and thus the field)within it's core(the ideal core) would not have the ability to induce inductance into a secondary winding on the opposite side of a toroid core-or any other core where the secondary is not wound with(on top of) the primary winding.

Yes and no, The Currents are Equal and Opposite: (See: Primary vs Secondary Current in a Transformer) So, the Secondary Current is always opposing the Primary's Current. As the Intensity of the Opposition increases there will be a increase of the Core's Reluctance. Harder for the Flux to Link through the Secondary. The higher the reluctance of the Core, the less emf in the secondary. There will be a lot of loss in a Transformer with this configuration and as you correctly point out, the best way is to have the Secondary Coil wound on top of the Primary. This is part of the reason, to increase efficiency.

I imagine this simply as two fire Fighters, each turns facing toward each other, both with fire hoses on full and pointing them directly at each other... The force of opposition would be relative to the force on each hose...

   Chris Sykes
       hyiq.org

P.S: Apply the Right Hand Rule to the picture: "Transformer Theory 1" - You will see each Field Oppose when the Secondary is carrying Current...

[Magluvin]

Lets say we have a rod core and a coil wound on it from one end of the core to the other. What would the fields look like if we apply DC to the coil?  At each end the field would flower out evenly all around the ends bending back toward the other end of the core.

Now make that core longer than the coil. Say the coil is 1in long and the core is 11in and the coil is wound in the middle leaving 5in of core out of each end of the coil. What would the field look like then?  It would be similar to the short core but the field would be weaker at the ends compared to the short core due to some of the field produced by the coil will emanate from the sides of the exposed core ends leaving less to be coming off of the very ends of the core.

Now lets look at a U shaped core with a coil wound at the bottom of the U.  How would the fields look??? 

Most all of the field will be between the U ends. Now put a flat core bar to close of the open end of the U.  If the coil is powered with DC, there will be no field within the space between the ends of the U. As the field is built up after the application of dc input, the expanding field extends out to the bar core at the end of the U. As long as the cores are not saturated, once the field is maxed out, there should be no field outside the core at all. Not even in between the U ends, or as in the hole in a toroid.

So this is how the flux from the primary of a toroid transformer gets to 'cut' the secondary windings producing current in the secondary. Its all done in the hole of the toroid. That is where all the action is. The only time that the field is completely contained in the toroid core is when there is no change in input, for example, DC once the field and currents are max and steady. Then when the input is reduced, the fields collapse back the same way they were expanded and cut the secondary again.

So there is not much if any flux from the outer circumference or from the sides of the toroid being the fields want the shortest path available, like in the U core example.

Read the pdf below. It describes what tinman was talking about on how the secondary is induced by primary fields in a toroid, or any closed transformer system. So it is totally incorrect to say that the fields of the primary exist only within the core. All the action is in the doughnut hole.
Mags

[poynt99]

The only time that the field is completely contained in the toroid core is when there is no change in input, for example, DC once the field and currents are max and steady. Then when the input is reduced, the fields collapse back the same way they were expanded and cut the secondary again.

So if the flux is confined to within the core with DC applied to a coil wound on it, how would changing the DC level cause the flux to now extend beyond the core? (assuming I understand correctly what you're saying)

Maybe you could illustrate the "action is in the hole of the toroid" with a simple diagram?