ENERGY AMPLIFICATION

[Neo-X]

@pix

Okey its because tito start to speak tagalog.. Anyway, ill tell you one of the secret in transformer. Do you not wonder why some transformer have an airgap while others non? The reason is transformer without airgap is much more efficient in low frequency and in non resonance mode while transformer with gap is much more efficient in high frequency and in resonance mode. Why? Because transformer without gap is have LESS BEMF and have LESS magnetizing current (a current in primary when the secondary has no load) while a transformer with airgap has MORE BEMF but has a HIGH magnitizing current. So there is a trade off. Increasing airgap increases the BEMF but have a downside of increasing the magnetizing current. Thats why you will  notice that a standard 220v transformer have no airgap while the flourescent ballast and flyback transformer have airgap. So in high frequency transformer its important to use a transformer with airgap to increase the bemf. Many experimenter in joule thief thread didn't consider that which is very important in attaining ou.

[forest]

@pix

Okey its because tito start to speak tagalog.. Anyway, ill tell you one of the secret in transformer. Do you not wonder why some transformer have an airgap while others non? The reason is transformer without airgap is much more efficient in low frequency and in non resonance mode while transformer with gap is much more efficient in high frequency and in resonance mode. Why? Because transformer without gap is have LESS BEMF and have LESS magnetizing current (a current in primary when the secondary has no load) while a transformer with airgap has MORE BEMF but has a HIGH magnitizing current. So there is a trade off. Increasing airgap increases the BEMF but have a downside of increasing the magnetizing current. Thats why you will  notice that a standard 220v transformer have no airgap while the flourescent ballast and flyback transformer have airgap. So in high frequency transformer its important to use a transformer with airgap to increase the bemf. Many experimenter in joule thief thread didn't consider that which is very important in attaining ou.

Thank you very much. I wonder how is that related to inductance of such transformers. I suspect that transforemr with gap has lower inductance, right ?

[Neo-X]

Thank you very much. I
wonder how is that related to
inductance of such
transformers. I suspect that
transforemr with gap has
lower inductance, right ?

--End of Quote--

Yeah your right. A transformer with airgap has lower inductance. But the most important is to increase the bemf than reducing the magnetizing current because the bemf is what cause overunity in resonance.

[gyulasun]

Anyway, ill tell you one of the secret in transformer. Do you not wonder why some transformer have an airgap while others non? The reason is transformer without airgap is much more efficient in low frequency and in non resonance mode while transformer with gap is much more efficient in high frequency and in resonance mode. Why? Because transformer without gap have LESS BEMF and have LESS magnetizing current (a current in primary when the secondary has no load) while a transformer with airgap has MORE BEMF but has a HIGH magnitizing current. So there is a trade off. Increasing airgap increases the BEMF but have a downside of increasing the magnetizing current. Thats why you will  notice that a standard 220v transformer have no airgap while the flourescent ballast and flyback transformer have airgap. So in high frequency transformer its important to use a transformer with airgap to increase the bemf. Many experimenter in joule thief thread didn't consider that which is very important in attaining ou.

Hi Neo-X,

I would like to tell you that I cannot fully agree with your above secrets.  The bottom line is whether a transformer primary current includes DC component besides the AC or not.  IF there is a DC component in the input current, it surely magnetically biases the core to one direction on its B/H curve towards a possible saturation area, and to prevent or reduce this, an air gap is introduced, this increases magnetic reluctance in the core. Such is the case for a flyback or a ballast transformer (or for choke coils in power supplies on the secondary side)  I agree and in case of a mains transformer normally there is no DC component in the primary current (unless you use it as a pulsed transformer from a DC source,  ) so there is no need for airgap. 

It is ok that there is less BEMF when the magnetizing current is smaller but the connection to the air gap comes from the possible selfinductance differences between a closed and a gapped core, (assuming similar Amperturns for the two cases).  Maybe I misunderstand your above reasonings on this?  Once you have a given (primary) coil, with or without airgap, you can control the magnetizing current by choosing the input AC amplitude as you wish (besides you use taps on the coil or fine-adjust airgap if there is any).  Normally cores with airgap gives much less selfinductance (as you wrote later below) hence the input drive shifts inherently towards the higher frequencies to get a certain needed inductive reactance for a job.  But for a high frequency transformer, the airgap is to be used to prevent (or delay) core saturation IF it is unwanted (and normally it is unwanted) and the BEMF can be controlled by the input voltage amplitude first, together with choosing the frequency or for a low value input voltage case you can make the taps on the main coil as means of optimization as I wrote above.

...
Yeah your right. A transformer with airgap has lower inductance. But the most important is to increase the bemf than reducing the magnetizing current because the bemf is what cause overunity in resonance.

I beg you pardon but bemf is created from the input current, the energy stored in the (primary) coil  (when you switch the current off)  is almost the same as the input energy (minus the coil and core losses)  and to get high bemf spikes at a given input current you have to choose a fast turn-off device for an also given (primary) coil inductance.   TO Hope for any extra output beyond the input you need to achieve somehow other 'miracles' in the core (if I knew exactly what, I would tell you).  It is possible that Gadget achieved that 'miracle' in his core when he found the input voltage increasing abnormally and it is rather difficult to repeat (not knowing what causes the extra output).

Sorry for 'chiming' in, if I misunderstand some of your thoughts than sorry.

Gyula

[WilbyInebriated]

?
If you take into account, that a snow ball rolling down the hill is growing in mass and diameter- it's kinetic energy  grows for sure.
Regards,
Pix

don't be coy or stupid... ask yourself why does a snowball rolling down a hill grow in mass and diameter? it's not a mystery OR a secret... nor is it OU.