The first test transformer has been wound.
** 500 turns of 26 awg on one side
** 2 coils on the other side, 250 turns of 24AWG and 500 turns of 26 AWG
This is the angle of thought...
Transformers work on Mutual Induction, the primary induces the secondary, and the magnetic field of the secondary induces the primary, it's a mutual street..
In a standard locked-ratio transformer, whatever the ratio, the secondary can only induce the primary to a maximum of the source voltage, NEVER more. So we can NEVER sink current into the source.
For instance, lets look at a step Down 2:1.. 12V induces the secondary at 6V. Now the secondary field induces the primary in reverse ratio, meaning that 6V is stepped back up to 12V. Assuming no losses, the maximum the primary can be induced up to matches the source so no current will flow from the primary back into the battery.
Now lets look at a step UP 1:2. 12V induces 24V in the secondary. The secondary now induces the primary again in reverse, stepping DOWN 24V back to 12. Again, the primary is only induced with 12V, thus matching the source. Again the source can NOT sink current.
We are LOCKED by turn ratios!
When the direction of flux change occurs, so does the direction of induced current. In a transformer, the secondary is trying to induce the primary in the direction to the source positive on the collapse, but it can never induce enough voltage to the primary (for the reasons stated above) to fully reverse current direction in the coil and sink current into the source. If we can manage to make this happen, a transformer MAY be able to produce output while charging the source 1/2 the cycle, and would possibly result in even more output.
This is my thought how to break it.. IF the turn ratios could flip roles exactly aligned with the phase, we can step UP the declining we should be able to induce the primary with MORE voltage than the source.
For instance, say 1:1 to start.. 12V induces 12V into the secondary. Now on the collapse, the primary DOUBLES it's turns. Now the secondary has 1/2 the turns as the primary, so the secondary inducing the primary will Step UP to the primary, thus pushing back with 2X the voltage as the source has- breaking the caged ratio of transformers.
My Results So Far-
I tested but had trouble timing the switching circuit with the input wave. Apparently function generators can not alter phase when the 2 waves have different frequencies so I couldn't get it to switch winding ratios on only the collapse But it was switching ratios during the cycle. And I indeed witnessed return current sinking to the source!
So today I will try a new switching method and hopefully report back.