COP 17 Heater | Rosemary Ainslie

[poynt99]

@ Harvey,

It's become abundantly apparent that you choose not to engage in technical dicsussion with anyone except those below your perceived level of technical knowhow. You've avoided debate and discussion with anyone that has opposed your ideas. Since you have chosen to avoid any technical discussion with me regarding several of the issues I've brought up, I'll leave you alone to your own vices.

I am interested in technical discussion with anyone willing and brave enough to go the distance. I do not know everything, and I openly stated that at least once here. But no one does. We are here to learn form each other, but no learning can occur if each party is not willing to discuss, defend, and comment on our and each other's viewpoints (which I have been trying to get others to do here). Making blanket esoteric statements without backup is an open invitation to questions, and one should expect it. I am not an expert, contrary to the notion Jibguy is trying to portray that I profess of myself. But I do know what I know, and what I need to learn, I try my best to learn.

Focus on the technical and be prepared to back it up, otherwise it's just a useless cat fight.

Any takers?

.99

[sprocket]

Hi. New here. Below a few poor quality pics regarding my setup. A few specifics, no LA batteries available so I have daisy-chained 5 Nokia BMC-3 NiMH together, giving me about 20V. I tried two 'resistive inductors' which can be seen in the photos - one just a copper coil from something else I had been working on, tried with both an iron and an air-core, the other is a few meters of the resistive-wire found in bar-heaters, so is good to about 1KW. My mosfet is a IRFPC50, rated to a DS voltage of 600V. Finally, I'm using an RS pulse generator, good to about 5Mhz.

My coils produce some really impressive spikes, somewhere in the order of 200-600V. Including the recovery diode reduces this drastically to about a 40V spike. Try as I might, I could not attain aperiodic oscillation - if I set the mark/space ratio almost identical, tweaking it gently to either side, the mosfet could be forced into 'indecision', (not knowing whether it wanted to be off or on) producing audible heavy-current switching in the coil, but in a 'classical' sense. I realise that this is not the form of oscillation I should be looking for, given the stated <5% M/S ratio, but when all else fails...

Things got much more interesting when I replaced the shunt-resistor with a parallel LC circuit - actually the small DC motor seen in one photo (12V operation, DC resistance 28 Ohms) along with a 100nF cap. Vary the pulse generator frequency until you hit its resonant frequency and all manner of aperiodic stuff seems to be happening - the motor runs for a start and can be made to rotate in a very chaotic manner, speeding up and slowing down, stopping and starting by itself. Strangely, even though there was significant current flowing from the battery as witnessed by the rise in temperature in the big current limiting, heat-sinked diode seen in the photos, (added after I smoked several resistors playing with MS settings!) the mosfet did not even get warm, even after several minutes! Unfortunately, after adjusting the frequency and MS ratios so that the motor ran constantly, everything suddenly died - seems a spike took out the mosfet, resulting in a GS short-circuit. As this was my one-and-only mosfet, experimentation is stalled until I can order a new batch.

All good fun!

[Joit]

Sorry to impose Aaron, but where exactly did I supposedly say or imply this?

.99

Around Post #1684
Same Magnitude of DC

[Joit]

Hi Sprocket and

I did do something similar with my Mosfet, i did lead back some of the Spikes to the Source Pin, what was not healthy for the Diode inside there.
There is a list in here, wich Mosfets has Avalanche and are higher rated.
Maybe better buy a higher one from beginning.
The PG50 was choosen because of the limitations from 1000V at the Circuit, but when you wanna work with higher Spikes,
a higher rated Mosfet is probatly the better Choice.
I think too, to use Coils in it can give you other, better Results,
but anyhow, i stick right now, that it produces Heat, and thats almost at the Coil/resistive Load.
Your scopeshot looks pretty, better then mine, lol and a nice building, what you did.


Edit: a List of Mosfets can be found here, Page 52 Post#1536 and next Page 53 Post #1561

[Joit]

Harvey,
Its anyhow allways good to have a(nother) Model in Mind like you do.
Voltage is of course the wrong expression, what is circulating around there,
because Voltage is only the speed of something, what is moving there.
I think too, that there are Waves involved, even for the Batteriecharge.
But anyhow its hard to decide, wich Batteries are when ok, but it surly can have a improvement at the Circuit, when you can adjust it better.
But even all Batteries are different made, different Materials, different Manufacturer,
and i dont know, if they all keep the same Norms.

About the Carbon, i only know at a galvanic Batterie, that the Carbon does make the minus Part of it,
i made once a Zinc Carbon device, where the Zinc dissappears after a while.
The Carbon dont change her consistence, and i think, it wont be different at Diamonds.
There are the next Questions, where does it disappears to, into a EM Field or just to Enviroment?
Brings up the EM Field, what is anyway usual useless and unwanted, but it seems there is a connection to the Hardware and the Enviroment.
And then, the next Question, when current or something is moving only into one Direction, are there still 2 Currents, what run, or only one, what cause a opposite flow.
Some other even suggest, there do run 4 currents, or even 6. Lol.
A lot of Questions... but it really goes more into quantum physics.
And maybe, its at last, only one Drop of something, what cause a lot of Waves, wich you only should lead or treat right.


And btw, what is that for a Term in this Answer for MJN about they Device, a resistive Load, what you cannot measure behind the Meter.
Sounds anyhow funny. Like a Lightbulb, but you cannot measure it behind the Meter when it produce more Power by itself?
Another Proof, to stay better with Batteries, as instead, as suggested using a Powersupply, before it goes into another Discussion.
That sounds more like FED Methods, to request compound interest from something,
what they did support once, as if they own any single Voltage, what is created into a Circuit.

[sprocket]

i Joit, I appreciate the welcome. Truth be told, I knew it was just a matter of time before those massive spikes killed the mosfet. I think I'll go with your recommendation and opt for a few of the 1000v PG50's, though I think they sell for considerably more than their lower-rated companions. A few of each perhaps...

[Aaron]

How to tune for RESONANCE in the Rosemary Ainslie circuit

THIS MAY JUST BE AN EFFECT OF THE SCOPE - WILL CONFIRM WITH TRUSTED SOURCES.
MH has made history - he may be right about one thing finally.


Watch this video
YouTube - How to tune your Rosemary Ainslie circuit for RESONANCE

VIDEO DISABLED UNTIL CONFIRMATION.

[Aaron]

AC in this circuit

Sorry to impose Aaron, but where exactly did I supposedly say or imply this?

.99

When I brought up one wire charging. You and MH both were quick to jump on the false idea that all one wire charging must be AC.

In either case, after that soap opera on that subject, you and MH were basically pointing out the false claim that "there is no ac on this circuit" so it is irrelevant.

But it turns out with the diode in the mosfet allowing reverse current, there is ABSOLUTELY AC in this circuit plain and simple.

[Joit]

Nice Video Aaron,
and i dont care, how long it shows OL at the left upper corner, so far, something is on the Screen. lol.
I vote for, not to publish it at OU.com, anyhow, i think its senseless, lol.

Another Idea, what i have is, maybe you can measure the Volts around Shunt? or somewhere else, where it has to be,
to got an indicator, in case, someone dont have a Scope.
I adjust sometimes just with the Meter around, and got different Sweet spots,
sometimes high AC sometimes high DC, sometimes close stable Voltage at the Batteries.
Maybe there is a Way to adjust it only with a Meter, and you can say, you have found, what you are looking for.

About the Waveforms, i see the same, and ask myself, if there is a special Point, when the Spikewave flips left or right, i can not get it stable to this Point.
And at overall View, it still looks like a AC wave, where Spikes increase and decrease.

[Aaron]

Welcome Sprocket!

Hi. New here.

Hi Sprocket, welcome and I'm glad to see someone else playing with the circuit. Is soooooo much fun!

Looking forward to more when you get your new mosfets.

[Aaron]

irfpg50

i Joit, I appreciate the welcome. Truth be told, I knew it was just a matter of time before those massive spikes killed the mosfet. I think I'll go with your recommendation and opt for a few of the 1000v PG50's, though I think they sell for considerably more than their lower-rated companions. A few of each perhaps...

I have been incredibly abusive to the mosfet up one end and down the other. I bought 3 initially (IRFPG50's) and I'm still using the same one - even after bringing it up over 250F for extended periods. Very rugged!

[Aaron]

comments

Nice Video Aaron,
and i dont care, how long it shows OL at the left upper corner, so far, something is on the Screen. lol.
I vote for, not to publish it at OU.com, anyhow, i think its senseless, lol.

Another Idea, what i have is, maybe you can measure the Volts around Shunt? or somewhere else, where it has to be,
to got an indicator, in case, someone dont have a Scope.
I adjust sometimes just with the Meter around, and got different Sweet spots,
sometimes high AC sometimes high DC, sometimes close stable Voltage at the Batteries.
Maybe there is a Way to adjust it only with a Meter, and you can say, you have found, what you are looking for.

About the Waveforms, i see the same, and ask myself, if there is a special Point, when the Spikewave flips left or right, i can not get it stable to this Point.
And at overall View, it still looks like a AC wave, where Spikes increase and decrease.

Thanks joit, if the samples are too many, it won't be able to calculate it. It is best to have fewer samples (not too few) and decrease amplitude so most fits in the screen and the numbers show.

I still post these at OU.com because I have compassion for the poor naive souls that are taken by the fraud committed by the skeptics. Perhaps a few can be saved when they see real work instead of a dog and pony show!

For example on my shut, I like to see as high RMS AC across the load as possible 30+ but that is difficult for my setup. 17.00~27.00 or so is really good especially with a shunt voltage of about 100mv.

As the AC voltage gets squared, 20v is 4 timse as much as 10v (only double voltage but 4 times the square).

So the bigger the AC you get with the smallest mv at the shunt the better.

Some multimeters have rms ac so use that on the load and regular multimeter on the shunt. It isn't perfect but good enough to see the margin between shunt and load. It is a ballpark but does correlate with real circuit performance as far as heat production for energy input.

In oscillation, the pulses will be aperiod.... not sure if that is what you mean. But the pulses bouncing between high and lower frequencies is exactly what we want. The spikes in the oscillation between each pulse acts a spring and the more spikes the more springing action or aperiod the pulsations will be.

With a lot of spikes showing from high gate resistance, the frequency can be increased to clamp down on it...BUT the oscillation tendency is not really gone, it is reduced but it is like locking in more back pressure and AC voltage goes up.

Anyway, I have had all the spikes on large sample rate look like one coherant sinewave snake...that is the best one can hope for. But with 1 turn pots on the timer, it is hard. With one solid resonance, at that point, we get all the power we want but no current leaves the batteries. It might hit that point here and there but not consistant because of imperfections in the circuit.

I'm sure it can be done.

[Harvey]

@ Harvey,

It's become abundantly apparent that you choose not to engage in technical dicsussion with anyone except those below your perceived level of technical knowhow. You've avoided debate and discussion with anyone that has opposed your ideas. Since you have chosen to avoid any technical discussion with me regarding several of the issues I've brought up, I'll leave you alone to your own vices.

I am interested in technical discussion with anyone willing and brave enough to go the distance. I do not know everything, and I openly stated that at least once here. But no one does. We are here to learn form each other, but no learning can occur if each party is not willing to discuss, defend, and comment on our and each other's viewpoints (which I have been trying to get others to do here). Making blanket esoteric statements without backup is an open invitation to questions, and one should expect it. I am not an expert, contrary to the notion Jibguy is trying to portray that I profess of myself. But I do know what I know, and what I need to learn, I try my best to learn.

Focus on the technical and be prepared to back it up, otherwise it's just a useless cat fight.

Any takers?

.99

You are a silly one aren't you? Everything I posted is substantiated by mainstream classical science. Yes, I have purposely and maturely avoided meaninless confrontation. Thank you for leaving me to my own 'vices'. Come back in 5 years and see how much I've learned in that time

[poynt99]

When I brought up one wire charging. You and MH both were quick to jump on the false idea that all one wire charging must be AC.

In either case, after that soap opera on that subject, you and MH were basically pointing out the false claim that "there is no ac on this circuit" so it is irrelevant.

But it turns out with the diode in the mosfet allowing reverse current, there is ABSOLUTELY AC in this circuit plain and simple.

I'm still trying to put together exactly when where and how I said or implied anything regarding AC present or not present in the RA circuit.

The only mechanisms by which current can pass through or around the MOSFET D-S, are by parasitic capacitances, channel capacitance, body diode capacitance, and by avalanche breakdown of the body diode. In order to break down that body diode in the reverse direction, it's going to need to see at least 1000V from D-S. Now this is not even going to happen if the flyback diode is present across the coil. The Drain to Source voltage is always positive in this circuit, which means the body diode is never forward biased. So this only leaves the capacitances in and around the MOSFET, and they do allow spikes to reach ground potential and hence a spikey reverse current, so in that sense there is AC current in this ciruit. The vast majority of the current however (about 99%) is pulsed-DC current.

Aaron's circuit probably exhibits much more reverse spiking due to the higher inductance as compared to the resistor used in the RA circuit.

.99

[Harvey]

Sprocket,

Great post. Thank you for posting the fourth picture showing the aperiodic envelope - I was actually going to ask Aaron to do that very thing and now I see he has to a smaller degree. (amplitude limits are offscreen)

I recognized the apparent aperiodic waveform as overlaid harmonics from his video. It's good to see some of the finer details documented and this one settles that nagging feeling I had WRT TK's handwaving and 'lost scope trigger' theory. (No offense TK, but I think even you knew that was a long shot)

Cheers,