Pierre's 170W in 1600W out Looped Very impressive Build continued & moderated

[listener192]

Right!  Yes it shakes during the first "field flash sequence".   / Arne

If you look Pierre uses a rectangular laminated stack and has applied a resin loaded with steel particles.
I guess he made a tight fitting cylindrical mould and then just poured in the resin.
L192

[listener192]

r2fpl,


Totally agree that diode recovery is not enough.  It is only one part of the equation. However in a generator you have an amplifying effect and the diodes will recover more once amplified.    Again, study AC generator basics.  You'll see what I'm writing about.   Just like what Pierre has stated, a rotational system will not give you OU, it's like an engine without pistons. Thanks for pointing out the 1/2 of 48V.


@L192,


Yes, I totally agree once again.   The current limiting resistor has it's role for charging the cap bank.  I understand this already.  I'm not easily convinced it has another role either.   The switched mode power supply with current limiting would help as well.  The current limiting resistor is wasted heat!


Jerdee

Jerdee,
The amplifying effect in a synchronous generator, is due to the rotor having a large number of turns with respect to the stator windings.
The flux developed is dependent on the amp turns, so a large flux can be developed with only a small DC current, which results in a large induction in the stator windings.
The DZ generator is running in reverse to a synchronous generator, so the only increase in voltage is due to the transformer action between stator  and rotor. Recovery through the diodes is proportional to the rate of change in flux, which in the case of the "always on" coils, is a relatively small change, which I have confirmed and posted current waveforms.

For there to be significant recovery energy, a large change in flux is required, so this must be happening, although in the code we have been given, the only such potential change is the end of the sequence when all coils are turned off. I say potential, as the single diode scheme only provides a current path for recovery, if a low side switch remains on. There is evidence of this also in the scope shot I provided however the pulses are very narrow and probably only occur at all , due to at least one of the low side switches being on for a short duration during the turn off of all the other high side switches.
There is likely another switching event, such as a polarity reversal that would result in significant recovery energy. You wont see this in the blue LED timing, it is probably in the relay wiring.

Now you are probably going to say the amplifying effect is the due to a series of six coils in series acting as a boost converter when the low side switch turns off. There is a problem with that ... the high side switches are linked to corresponding low side switches, so they both turn off together. Without the high side switch remaining on, the energy stored in the series coils cannot be recovered via the diode as there is no current path. You may say what about the next high side switch along, that will still be on. Yes, but so will its paired low side switch so still no release of stored coil energy. 

Now if there were a polarity reversal to the relay supply rails, this may work.

Stator coil inductance and hence energy storage will increase whilst in registration with the rotor,under no load. This inductance being reduced by counter current due to
load. If inductance is reduced then energy recovery is reduced.

As the system has demonstrated that it is load invariant, more current is automatically supplied. The system behaves, as if lenz is not directly acting on source.

L192 

[r2fpl]

It is not easy to repeat the first time because you have to adjust.
You must find the answer that you are missing in what you did. It is not easy to understand immediately. "Think straight and you will find". I agree with these words. It is a cliché but it is. Do not look for mA search A. The diodes have two functions I think that you already know. When the effect appears, they come to life. Everything will be the same.

It's hard to think about it with what you have on the table because there is too much going on there. Even I do not know how to do it right now. You need a lot of work to continue joining the whole.
I apologize for not showing you the video, but if I showed you, you would know what to do. Do not take offense at me.
It's good that you write about what you do. Maybe you will come by yourself and maybe someone will tell you more. Jardee says that maybe a few people already know. Possible. Certainly there are those who do not write and do.

If you do not find it yourself, Pierre has promised us that he will show and say how it works and how to do it. If more people would be interested in this, it would be stated.

The system behaves, as if lenz is not directly acting on source.
L192

Lenz, I do not think so.

[cheors]

@r2fpl
I do not understand your attitude. Here is a forum to share, exchange ideas and finds, not to hide while hinting that you have understood something.
Pierre is silent to protect his invention, but you are not the author, you have nothing to lose by explaining your idea or showing your results.

fr: je ne comprends pas votre attitude. Ici c'est un forum pour partager,  échanger idées et trouvailles, pas pour cacher tout en laissant entendre que vous avez compris quelque chose.
Pierre se tait pour protéger son invention, mais vous vous n'êtes pas l'auteur, vous n'avez rien à perdre en expliquant votre idée ou en montrant vos résultats.

[seaad]

@r2fpl
. . . attitude. Here is a forum to share, exchange ideas and finds, not to hide while hinting that you have understood something.

  Dont forget that Pedro1 also is a member of this forum. "pierres-170w-in-1600w-out . . . ."