Rosemary Ainslie circuit demonstration on Saturday March 12th 2011

[neptune]

Hi Rosemary .Sorry I lack the necessary computer skills to print Poynt99s pictures. Come on you computer geniuses .

[Magluvin]

BIG YES   reverse the diode  sorry  redrew circuit for pix and made mistake. Now it will work.     mags

[nul-points]

BIG YES   reverse the diode  sorry  redrew circuit for pix and made mistake. Now it will work.     mags

interesting!

remove the first diode (because the 2nd one now allows current to continue thro' the RLC) and supply the circuit from a charged cap rather than a battery (it's just another type of voltage source)...

...and you get the switched-charge circuit i was investigating back in '08:

    http://www.overunity.com/index.php?topic=4419.msg130409#msg130409


was it OU?  ...only if the text-books are correct in stating that the dissipated/stored energy ratio in charging a cap is always 50:50

unfortunately, my experimental results showed that this ratio could vary quite significantly - so at least i was able to prove that the text-books are wrong in making this 50:50 energy allocation claim

but there is definitely a charge anomaly which occurs - can get around 25-30% more charge-separation in the circuit after switching current into a cap than was in the circuit at the start

looking forward to see where this 'cap-shorting' effect leads us to

good luck all
np

PS ...just realised also that the Q2 (N-MOSFET), L1, R1 half of the circuit is essentially the same as Rosemary's circuit
(powered by the voltage which gets stored on C2, rather than a battery, of course!)



  http://docsfreelunch.blogspot.com/

[hartiberlin]

This is where knowing how to use the triggering and zoom features is essential.  Believe me, these scopes can capture and display any part of any waveform you want to look at.  You just have to know how to use all the scope's powerful triggering and horizontal timebase features.

Yes.
that is right.
These new digital scope are so powerful of features you really need to study all their
features.

As all the teacher always say: RTFM.

Read the Fxcking manual ! lol...

Takes a bit of time and testing to get used to it.

Rose, we really need 3 or 4 cycles on the scopeshot from both tests,
so we can really see the exact voltage on the shunt.

As test 1 shows overunity already with the burst envelope and also
with the mean value display, I am not sure what test 2 will
show, when you zoom into the burst to show the single waveforms...

P.S: Best thing would be to just put a variable DC power supply
to the gate of the MOSFETs and have the MOSFETs oscillate all the time,
then you don´t need a complicated triggering for the scope...

So Rose, please try this, as it is very easy.
just instead of the function generator just get a power supply
and feed in a negative DC voltage to the Gates.

Regards, Stefan.

[hartiberlin]

Here is the circuit simulatiom diagram from
poynt and his simulated scopeshots.

He should also post the SIMULATION file, otherwise
someone could say it is just faked...