Claimed OU circuit of Rosemary Ainslie

[TinselKoala]

Please, fellow travellers, let's keep the political discussions on some other threads. Thanks. Not that I disagree...

@Aaron: Thanks for clearing up the series resistor. It really is hard to see on the stills from the video. I will try the 1.1 k in my circuit and see if it still gives me the false triggering and mosfet underdriving. Which is what I am seeing, and somehow, I have more confidence in my results and their interpretation than in yours.

Next time please post relevant details in text so that we don't waste time building an incompletely specified circuit. Er...like another circuit that we all would like to see completely specified.

You are as usual way behind, as well as being wrong. In the video where I made your waveforms, I am using a 0.066 ohm non-inductive shunt measured at 3 microHenries.

What does your shunt measure?

My mosfet gets hot because I am driving it wild with ecstasy. And I was using 24 volts from a real battery.

Let's see, what else....Oh, yeah, if you don't like my research, fine. I forbid you to use any of my results to guide your own work.

grokking the fullness, waiting is...
--TK

[TinselKoala]

Hmm, I did not block her.
Maybe she was on an IP address that was earlier blocked
by some spammers ?
I still have a few IP addresses in my Ban list that are
still blocked from abusive users and spammers...

If she does not get access, she should please contact me and
tell me her IP adress,then I will look it up and fix it.

Thanks.

Regards, Stefan.

IMHO, it is far more likely that she simply is making a user error. She apparently has figured out how to get read access...and sometimes her explanations of what is happening are, shall we say, somewhat distorted by her viewpoint. For example, I seriously doubt that anyone not authorized is reading her emails or preventing her from having internet access.

[TinselKoala]

Just looking backwards in this thread, 2.1 or 2.7k ohm? brown brown red gold is 2.1 or 2.7k? Make sure your battery is FULLY charged.

I can't make out the color bands or the text on my screen. Aaron has now indicated 1.1 K, so I will repeat my test with that value.

Will I also be made to obtain the exact make and model of Aaron's scope?

I would like to know what it is--so that I can do that if it really becomes necessary to compare scope performance in a side-by-side test. But that's the kind of thing I usually get paid for.

All my equipment is known, as are the settings.

[TinselKoala]

More raw data from an actual Ainslie experimental run and a DC control run at the same average input power settings.
Of course, my mosfet is not oscillating--it's just being accurately driven at a known 2.4 kHz and a known 3 percent ON with a fast risetime clean pulse.

Note that the load heating profile is similar to the reported heat profile in the Ainslie papers. Ballpark, certainly. In the TKTTCalo, heat is retained well and the equilibrium temp is likely higher than hers for that and other minor reasons. But certainly I am getting heat, as one can see.

And of course, in the DC control condition, using the same average power as was _estimated_ roughly for experimental condition, the load heated a bit faster and got a bit hotter at equilibrium. Energy in and out can be easily calculated from these data, and clearly show a COP under 1.

Errors of course can be many. But they are none of them of sufficient possible magnitude to turn a substantial OU condition into a substantial underunity on.

Conclusion: No excess energy or efficiency was found in this experimental pilot run. Since the claim in the Ainslie paper is of excess heat energy out, 17 times more than electrical energy in, the issue of battery charging is irrelevant. The energy flowing through the shunt resistor was measured--this is the energy "over the millwheel" -- and this amount of energy was found to be more than was necessary to heat the load to similar temps with similar DC power level. Since the energy "over the millwheel" is the simple sum of any "leaving" and "returning" energy, the actual measurement does the computation automatically and gives the true net energy flow.
Which in this case is more than enough to heat the load resistor, just like DC would.
So, unless my DC power supply is also overunity, or I made some 17 x mistake, or sufficient error has accumulated to do that factor of 17+, there's no OU in this set of runs.
Even though the heating is impressive.

So, now we must see details of Rosemary's actual data -- the spreadsheet, the numbers that went in, the actual calculations. Because at this point, Ainslie load heating at 3 percent can be considered confirmed, if the circuit is properly driven with short risetime clean pulses. Even though the 555 timer circuit in the Quantum article is definitely wrong and incapable of making the short cycle.

To clear up the "oscillation" issue we need to know the exact circuit, Rosemary, that you used to clock your system. I still believe, based on what I have seen, that scope triggering on an unclean mosfet signal is the culprit, and if the mosfet is oscillating it is because of the 555 circuit.

Aaron's circuit from the Mims booklet is not as controllable or stable as the Quantum article's circuit. Too bad that one's output is flipped. It may actually be better for experimenters to use the Quantum circuit with a 2n2222 as an inverter--as has been suggested before--, because at least the F and % are separately controllable in that one, and it operates in the right freq range.

Of course, there are also simple mosfet gate driver chips that will give the right kind of pulse to your mosfet--the H-bridge switches quite well as high as my F34 will go...and with the DP101 it will go even higher than 2 Mhz with clean edges and big inductive spikes. DRSSTC here we come!!

But remember, I have forbidden Aaron to use my findings to guide his research. So he better not build that 555 correctly, or try sharper pulses, or a different mosfet. No no no.

[TinselKoala]

I have _at last_ been able to get some true parasitic oscillations out of my "Aaron's Rod" circuit. Now that I've got the right resistor in the positive rail...

So I've made a couple new vids, they are processing and uploading now. I'm able to show that I do get parasitic oscillations of the classic textbook kind, and I still believe that Aaron's scope is missing triggering to produce the bands that he is seeing.

The parasitic oscillations are regular, albeit quite complex. Since the voltage on the battery monitor goes up, this means that the mosfet is not allowing as much power through during these oscillations.

Or, it means that power is being fed back to the battery, and the battery monitor is just showing the sum of the forward and reversed power.

Or the crack into the seventh dimension is leaking again.

Note that the Aaron's circuit is widely different than Ainslie's and is being operated at a much higher frequency. I still have not been able to get my Ainslie build to misbehave. I guess I'll have to (cringe) hook up this breadboarded timer to clock it and see what happens.

But at least I know for sure what happens in the Ainslie circuit with a good solid 3 percent pulse when there's NO OU.

So any OU will have to beat that baseline.

I'll post the links here when they are done uploading.

EDIT: Here you go.

Part C:
http://www.youtube.com/watch?v=bcKg0oXtNjA
Part D:
http://www.youtube.com/watch?v=a1iRpEM0qTw