Richard VIALLE's new theory about negative mass and overunity

[verpies]

what is the use of the double wiring (I mean the orange one) in this transformer?  Is this to use back efm?

Yes, this additional winding collects the energy in "back emf" and feeds it back to the power supply.

In conventional power supply designs with totem-pole drive, the primary windings usually have clamps or snubber circuits across them.  Often realized as transient voltage suppression diodes ...or zener diodes ...or metal oxide varistors, etc....

The purpose of all of these snubbing/clamping components is to dissipate the energy in unwanted and dangerous switching spikes.   
As a result, this spike energy gets wasted as heat.  The justification for this is that it's better to dissipate those spikes than blow up transistors and other components ...and to create EMI.

This design does not dissipate this unwanted energy but captures it and feeds it back into the power supply.  That's why the caption under the diagram states "...with lossless clamps".

BTW: Those "back emf" collection windings should mirror the main windings (ideally should be wound bifilarly and parallelly with the main primary winding).  If space is an issue, then it is allowable to wind the "back emf"collection winding with a thinner wire than the main winding (but still mirroring it as closely as possible).

[verpies]

As usual in any true transformer (e.g. T2), all of the primary and secondary windings should consist of even number of back-and-forth layers covering the full circumference of the core ...or the following flux leakage happens.
Flux leakage causes loss of energy transfer efficiency, non-linear characteristics and exacerbated switching spikes.

P.S.
The latter recommendation does not apply to "flyback transformers", since those are not true transformers anyway.

[tim123]

Hi Folks,
A quick update on progress:
- Gate driver attached to IRF450.
- 15v on the gate from power supply #1
- 50-60v on the load / drain from power supply #2
- Signal from USB sig-gen.

Tested with 'scope & a light-bulb load - it works perfectly. Thanks again Verpies & Itsu for your help...

Next stage is to test it with my Vialle gen coil & tubes. Maybe tomorrow.

I know I need to add a snubber first... I will probably just connect a diode in reverse across the coil to start off with...

Regards, Tim

[tim123]

As usual in any true transformer (e.g. T2), all of the primary and secondary windings should consist of even number of back-and-forth layers...

Hi Verpies. Why an even number of layers? Why would that make a difference?

[tim123]

Ok, it's not yet perfect... It's not giving me a clean square wave output above about 100KHz... Above 400KHz - there's no waveform - but there is still power going through...

I'm guessing that the resistors between the driver & gate are too high value at 48Ohms... (Verpies?)