Re: [EVGRAY] Triple thick BiTT

Body

Hi Doug
Remember the flux is just like current travelling both ways through a
resistor simultaneous,
If we have 1 amp going left to right and 1 amp going right to left then the
total effective current (or flux) adds to zero, so none left to go back
into input coil.

In the Auratek's picture it shows same layout as my original attempts where
I too had been using toroids.
I cant find a pic of mine just now.

See attachments for understanding better.
Yes your assumptions pretty well spot on Doug.

Input transformer is just a standard transformer in my pic there below.

I think we might be able to see some benefits from modifying a normal
transformer....just removing secondary  and rewinding a pair of secondaries
on the outside legs.
Even without the external low reluctance path.  Just have to remember
there's only half the input flux in each outside leg so more turns needed.
Along with maybe air gap in central 'I' part of the core.

Gerry



On Fri, Jan 26, 2018 at 5:57 PM, [email protected] [EVGRAY] <
[email protected]> wrote:

>
>
> Hi Gerry
>
> OK trying to understand this:
>
> "I have been using twin input toroids with  common input winding
> throughout all the different versions which is quite wrong."
>
>
> So do you mean you do not have a single core leg in middle, that the
> primary wind wraps around, and instead have two core legs there, with the
> two windings on each leg connected in series or  parallel?  And this is
> your center primary wind?  (soow two core legs in middle?)
>
> If so, then this more like side-by-side regular transformers, and flux
> will not be re routed into opposite primary since it will follow path of
> least resistance which will be right back to its respective primary...
>
> Still not sure even in the correct design, why backemf flux would route to
> opposite primary, although I am getting to understand better in
> corresponding with you, as right now I will assume the primary has
> resistance when load is applied to secondaries, BUT instead of "entering"
> the primary, and reflecting back as extra primary draw, now the backemf
> flux sees and feels the primary resistance and decides to go other route
> instead, since the resistance is lower!
>
> And that lower resistance is the path along the top and bottom extra bars
> stretching from oine secondary to the other so now there is ADDITIVE power
> in secondaries, rather that power reflected back into primary.
>
> ciaoKone
>
>
> 
>