Sharing ideas on how to make a more efficent motor using Flyback (MODERATED)

[tinman]

Absolutely correct.

Additionally, a soft iron core will amplify any field polarity produced by the windings. This is because the 'magnetic domains' align themselves to the external field and add to the sum total of the field.

Voltage is equivalent to pressure, it forces current through the wire. So the higher the voltage, the longer the wire can be through which one can 'move' current.
However, current is NOT movement of anything trough the conductor (wire) end-to-end. It should be thought of as an out-of-phase alignment of conductor atoms by way of force (voltage pressure). The direction of the phase changing pressure relative to the conductor will determine the polarity of the resultant magnetic field around the conductor.

During the time that the phase is changing, the magnetic field will appear to be 'moving'. During the collapse, the out-of-phase atomic condition is springing back into place. So, the field is moving in the opposite direction when collapsing, however the field itself will still be in the same polarity (between 0 and 9 as apposed to -9 and 0).

The amount of out-of-phase atomic alignment is determined by the voltage and length of wire giving rise to sum total resistance to the out-of-phase condition. Once the available voltage causes a maximized out-of-phase condition, the magnetic field no longer appears to be moving. The voltage must be maintained to maintain a certain out-of-phase degree. 

We are looking to get high voltage (pressure) to generate an out-of-phase atomic condition throughout a lengthy piece of wire with many turns rapped around the magnetic domains of a soft iron core, to create a strong usable magnetic field.

I say: increase the back-spike voltage (by way of a step-up transformer) so it works across a longer conductor (multiple electromagnets) (stators). 

MagnaMoRo

Absolutely correct.

Not correct at all-->the current dose not reverse direction when the field collapses around the inductor.

[synchro1]

@Tinman,

Please watch the first portion of this video. Watch where the arrows change direction:

https://www.youtube.com/watch?v=hNHXtIWaaig

[tinman]

@Tinman,

Please watch the first portion of this video. Watch where the arrows change direction:

https://www.youtube.com/watch?v=hNHXtIWaaig

You have shown a tank circuit where the current is being rocked back and forth between an inductor and a capacitor--different situation.
When a current is sent to an inductor,the inductor builds a magnetic field around it. When that current supply to the inductor is cut off,the field around that inductor collapses. The voltage across that inductor will invert,but the current flow through that inductor will continue to flow in the same direction. Think about what happens in a water pipe that causes water hammer when the tap that supplies that water flow is abruptly switched off. The pressure (voltage) in that pipe after the tap invert's,but the water(current) wants to keep flowing in the same direction through that pipe.

If we are to help Luc in making a more efficient motor using the flyback,then it is important that this is understood.
Voltage invert's across the inductor,but current keeps flowing in the same direction.

[Magluvin]

The reason a coil inductance takes time for the field to build and current to eventually fully flow is the fact that the initial expanding field 'generates a reverse current of the input. Due to resistance and losses, the input overcomes the reverse emf. So as Tinman said, when the field collapses, opposite of expanding,  it generates a current in the same direction as the input before it is disconnected.  For me, thats where the term BEMF is not correct or mistaken, and should be called forward emf. As long as the reference is the direction of the input.

Mags

[MoRo]

Not correct at all-->the current dose not reverse direction when the field collapses around the inductor.

True. -->> "the current dose NOT reverse direction"
Especially in light of what I have explained 'current' to be: -->> The out-of-phase degree.
However, during field collapse (which is actually: -->> spring-back to normal phase alignment) the detected voltage in the conductor end-to-end will be opposite polarity until the normal phase angle is reached.

MagnaMoRo