Testing the TK Tar Baby

[TinselKoala]

There has always been some ambiguity in Ainslie's mind about just what to call the Mixed-up Mosfet Miswiring Misadventure. The Q2s are parallel but the Q1 isn't but the drains all are but the gates aren't. So she's tried to describe this as, for example, "holding hands". How sweet.

But, in light of her characterisation of her critics as a pack of running dogs, along with her continuing sexual innuendoes, I have thought of some better names for the mosfet orientations in the NERD Device.

The Q2 mosfets, the "Gang of Four" are, of course.... mounted Doggie Style.
And the other one, the Q1, is in the strict Missionary Position wrt the others  --  face to face, gate to source, source to gate and joined at the drains in the middle.

It's quite the mosfet orgy, altogether. No wonder the load gets hot.

[MileHigh]

TK:

You know there is that quite nice analogy between electricity and water where the water pressure is akin to the voltage and the water flow is akin to the current.  Flowing water is heavy and has momentum so there is quite a bit of inherent "mechanical inductance" in flowing water.

When you look at this business from the water angle, the Q1 MOSFET is like an on-off water valve, and the Q2 array is like a valve that is half-on and half-off and making a loud humming sound.  That's something that we can all relate to in real life.

So here is where the common sense comes into play:  With 100 PSI in your water pipe imagine you enable either the Q1 or Q2 water valves so they work like the equivalent MOSFETs.  Does the water flow?  The answer is yes, the water does flow.  Just about anybody can imagine this little thought experiment.  The same thing is happening with Rosemary's electrical circuit.

I honestly can't recall clean and concise data from you for the dim bulb test that you did a while back.  So my suggestion is either to repost that data if you have it, or do a new dim bulb test with nicely presented data.  The idea being that you would be setting a standard and it would be up to Rosemary to see if she can meet or better that standard.  (And no Rosemary, I don't want to hear you scoff at this suggestion with more lies about TK's setup and his competence.  If you do I will respond.)

To summarize, present some dim bulb test data that sets a standard for brevity and clarity.  As a suggestion, it could be in the form of a spreadsheet and an associated video clip.

Then... You are done!  It will be up to Rosemary to respond in turn.  It would be essentially the end of this thread, everybody simply goes into a holding pattern waiting for Rosemary to do a dim bulb test.  If Rosemary never does anything, then it's over.  If she does a dim bulb test, then we will see how well she documents herself and what the conclusion is.

My feeling is unless Rosemary does a dim bulb test herself, there is no point in carrying on.  You have basically covered most of the issues, what more is there really to say?

MileHigh

[TinselKoala]

I'll gladly do a full-on documented DBT.

But first I have to know I'm not wasting my time (sic). I need to know what the correct circuit is ( Paper 1 or as I  now suspect Paper 2); I need to know the gate drive parameters (I suspect a triangle or ramp was used in some of the hight heat trials) and I need some confirmation from outside my lab (sic)  that the performance of Tar Baby wrt oscillations, load heating and so forth are "approximately exact" enough for the DBT to be fair.

And I need five academics who will go on record risking their careers to swear absolutely that the moon is made of very ripe Gorgonzola cheese, because I've shown them a cheese sandwich (on Pumpernickel, with alfalfa sprouts)  and told them it was from the Moon. And I'm prepared to show them the cheese sandwich over and over and over again until they relent and admit that they are just too stupid to realise what standard cheese measurement protocols are telling them: you cannot average cheese, therefore the Moon is cheese, through and through.

When I get confirmation or at least some suggested setting parameters that could be "expected to work if Zipons are true" or however you want to put it... then I'll set up for a formal DBT after running on those parameters strictly alone without variations, monitoring load heat over time (OVER, get it, as if the time were in the denominator of a fraction, ho ho hidey scrawny ho.) And I'll let it run for a set amount of time, whether or not the batteries are discharging. Then I'll do the DBT, on video as before.

And I was just kidding about the five academics and the cheese. Three will be fine, and as long as they bring enough wine, I don't care what kind of cheese it is.

[TinselKoala]

MH said,

My feeling is unless Rosemary does a dim bulb test herself, there is no point in carrying on.  You have basically covered most of the issues, what more is there really to say?

Of course you are correct in that the main claim must be substantiated with a real test, or the ridicule factor will go wayyy up. Ainslie had better get cracking because she is way behind.

But there is still the load heating calorimetry to be done. I'd actually like to do that before the "real" DBT. But again.. .I need to get "approved" waveform parameters to use. Not necessarily from Herself. I would be happy to try to run with a consensus agreement on gate drive voltages and duty cycles, main battery voltage, envelope frequency, and etc like that there.

Did I mention that I got a _mosfet_ up to 190 C or more for a short time without popping it? At 5 amps they heat up good.

[Rosemary Ainslie]

My dear little TK,

MH said, 

Of course you are correct in that the main claim must be substantiated with a real test, or the ridicule factor will go wayyy up. Ainslie had better get cracking because she is way behind.

But there is still the load heating calorimetry to be done. I'd actually like to do that before the "real" DBT. But again.. .I need to get "approved" waveform parameters to use. Not necessarily from Herself. I would be happy to try to run with a consensus agreement on gate drive voltages and duty cycles, main battery voltage, envelope frequency, and etc like that there.

Did I mention that I got a _mosfet_ up to 190 C or more for a short time without popping it? At 5 amps they heat up good.

If you got the MOSFET Q1 OR the MOSFETs Q2 to heat up to 190 degrees centigrade - then you have FAR exceeded our claims.  Our own MOSFETs either Q1 or Q2 do NOT come near your achievements here.  VERY WELL DONE INDEED

Rosie Pose
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