Where the OVERUNITY using INDUCTION COILS comes from (eg Joule Thief)

[nelsonrochaa]

To people interest in  Nichelson documents refered by jbignes5 the links :

https://onedrive.live.com/redir?resid=E5A6FA1D7F4103D6!186&authkey=!ADHPMrYv4jfiYgE&ithint=file%2cpdf

https://onedrive.live.com/redir?resid=E5A6FA1D7F4103D6!182&authkey=!ACMuj1L6gcNOvio&ithint=file%2cpdf

https://onedrive.live.com/redir?resid=E5A6FA1D7F4103D6!180&authkey=!AK1NOVOgDBhgoaU&ithint=file%2cpdf

[antijon]

I have to agree with Jbignes regarding bifilar coils. "Decreasing the resonant frequency" is the same as saying - reducing the inductive reactance, which is also the same as saying - reducing the counter emf. I think this is evident in Tesla's patent. He designed this specifically as an electromagnet operated by AC current. If a high power electromagnet is needed, it suffers from high reactance which reduces the magnetic force. Increasing the capacitance, or lowering the resonant frequency, increases the power transferred to the magnetic field.

I really don't understand the argument about the JT though. I'm pretty sure the OP just included it in the title because he thinks increasing frequency gives OU.

[tinman]

I feel like this investigation was fairly short lived considering the encouragement from a certain few individuals regarding this concept.  I'm still working on this as I don't think this investigation of bifilar coils has been fully vetted.

As you know,it was looked into deeper at OUR.

I spent weeks and dollars on this,and the only difference i found,was a reduction in resonant frequency of the BPC.

The added capacitance also reduced the time the current flow through the coil hit it's peak,but we are talking only uS here,when the two coils are driven at the same frequency.

Both the BPC and single wound PC both have CEMF--that is just something you cannot get rid of in an inductor--and why would you want to?.

Without CEMF,the current would rise to it's maximum value instantly.
This means you have no control over when and where on the current curve you can switch off the current flow.
Imagine how much excess heat would be created by the inductor.
Imagine no CEMF in your electric drill motor,where the drill would draw maximum current(stall current),even if you were not drilling anything.

How about a generator with no CEMF 
No CEMF= no output from the generator.

jbignes5 said my experiments had nothing to do with this topic-passing a magnet passed a coil.

Well if he had of been paying attention,then he would see what it has to do with CEMF--the very thing he is trying to eliminate.

How many times now have we seen the self acclaimed Tesla ex/spurts come in here,and try and tell us all how it's done,and what needs to happen?.
Then  the good old !resonant joule thief! pop's up,and off the Tesla fans go.

So,we either carry out the experiments our selves,and get the correct answer's,or we listen to lost of !double speak! 


Brad

[web000x]

As you know,it was looked into deeper at OUR.

I spent weeks and dollars on this,and the only difference i found,was a reduction in resonant frequency of the BPC.

The added capacitance also reduced the time the current flow through the coil hit it's peak,but we are talking only uS here,when the two coils are driven at the same frequency.


Brad

Most of you that were working on the bifilar pancake coil, from what I can tell, didn't get into the side of investigation dealing with excitation via mutual induction.  This is where I am working.  TK did get into this but I'm not sure how far he took it.


@Milehigh,
This is in response to your PM.  I never said anything about a series configured bifilar coil.  Those are your words.  As was before, as is right now, I will continue to investigate this despite your discouragement.


Dave

[tinman]

 author=antijon link=topic=17297.msg507911#msg507911 date=1499175665]

I really don't understand the argument about the JT though. I'm pretty sure the OP just included it in the title because he thinks increasing frequency gives OU.

So if were talking about the JT,what has bifilar coils and Tesla got to do with it?

If a high power electromagnet is needed, it suffers from high reactance which reduces the magnetic force.

No it dose not.

Decreasing the resonant frequency" is the same as saying - reducing the inductive reactance,which is also the same as saying - reducing the counter emf

There are a number of things that can cause a reduction in resonant frequency-higher winding capacitance for instance 
And what happens when you reduce the counter EMF ?

Increasing the capacitance, or lowering the resonant frequency, increases the power transferred to the magnetic field.

No it doesn't.
It increases the displacement current between windings,and this creates more waste heat.

I have to agree with Jbignes regarding bifilar coils.

You are welcome to believe who ever you choose.


Brad