Akula0083 30 Watt Self Running Generator.

[MileHigh]

Verpies:

I finally looked at the simulation where you "swap the dots" for the transformer configuration.  Indeed you see some current go back into the battery but it's small compared to the battery discharge current.  Tuning???  lol

But no lights!  Dang!

That pulse modulation chip seems to have caused a lot of spinning of wheels on OUR.  It appears to also be a PWM that can get the current sense from the LED array to make a negative feedback loop?  It seems more trouble that it's worth and a 555 is a viable alternative - or a signal generator as several have pointed out.  I know, then it won't be a true replication.

Anyway it will be fun to see the populated boards put through their paces.

MileHigh

[verpies]

Dave:
I am just going to repeat that the water analogy will help you.

@Dave:
In case his optimism about this analogy is justified in your case, I am attaching a water analogy of the inductor below. (it is animated but you have to un-rar it to see it move).

[forest]

verpies


Very interesting animation. Something special here I think you can find OU on it  , just  analyse it according to the thermodynamic laws using out of the box thinking

[verpies]

Very interesting animation.

I'm glad you like it.
I can post more of these animations if you convince the site Admin (Hartiberlin) not to truncate animated gifs, zip and rar attachments.
I had to pad the rar file with 256 zero bytes, for it to survive the truncation. 
I don't want to pad every attachment like that.

Something special here I think you can find OU on it  , just  analyze it according to the thermodynamic laws using out of the box thinking

You must mean the lossless compression of the air in these bellows. 
Personally I prefer to depict the magnetic field as the water turbine's moment of inertia ...or a massive flywheel attached to it.

[verpies]

Indeed you see some current go back into the battery but it's small compared to the battery discharge current.  Tuning???  lol

I wouldn't know what to tune for. According to conventional wisdom L2 cannot give back more than L1 took.
Only if something weird happened in that inductor/transformer then a net gain would be possible.

It appears to also be a PWM that can get the current sense from the LED array to make a negative feedback loop?

Yes, it would appear so ...just what is that strange feedback loop for?
It would be pretty hard to bring that R5/R7 junction below ground ...or even to make it fall quickly (-6V/ms) with those huge caps.

It seems more trouble that it's worth and a 555 is a viable alternative - or a signal generator as several have pointed out. 

Yes, without that strange feedback loop it might as well be driven by a 555 astable.