Rosemary Ainslie Circuit Demonstration, June 1 2013

[picowatt]

TK,

See if you can get a decent screen capture of the waveforms at 3:49:14 or so.

This is with the CSR probe on the wrong side of the CSR (and with Q1 passing current).

Look at the current trace, does it look to you as if the current trace is still a bit above zero during the Q1 on times?

PW. 

[picowatt]

Are they actually doing scope internal screencaptures, or is somebody just taking a still photo of the screens with a cellphone or something? I didn't see any fingers near scope buttons when the "snaps" were supposed to be taken.

He directed them to make a snapshot...

[profitis]

@seamonkey..true,so true.i concur sir but let us watch at a distance,perhaps the children will oneday realize that the easteregg is pinned onto their backs and not hidden in the house.perhaps they will stand in front the mirror oneday and see a surprize.wisdom grows from self-reflection they say

[TinselKoala]

As I have tried to document with my blog post captures and scopeshot collection, the sequence of events that Ainslie describes in the paper is different from that which she reported, live, on the days of the actual experiments. She made lots of blog postings at the time the scopeshots were taken and it's clear that the extreme heat in the load was made using substantial current in the Q1 mosfet, that some of the scopeshots taken in the sequence show this current, and the Figure 3 and the SCRN0355 shots do not.

1. If the Figure 3 shot is indicative of the true state of the circuit with proper probe connections, then the mosfet must be blown or missing or miswired and there cannot be substantial heat in the load. This is what I have always maintained, and it appears that that is also what Ainslie is now admitting.

2. If the Figure 3 shot is done WITH a functioning mosfet in the Q1 position, then High Heat in the load is perfectly reasonable and expected, but in order to make the scopeshot without showing current, the probe has to be misplaced.

3. If there is a functioning mosfet and proper probe positioning, the high load heat is found without difficulty, but the current trace indicates substantial current.

These three things are what we have noted about the Figure 3 scopeshot, and these three things have been confirmed, in spades, by Ainslie's demonstration.

Further, I have predicted that the Q1 mosfet cannot hold up for very long, under the _actual_ current produced by a 12 volt gate signal and a full six batteries in series, and with the original small heatsink and long ON times as shown in the Figure 3 shot. Obviously this was not tested by Ainslie in the demonstration.

What is the battery stack voltage? What is the expected voltage from a stack of six fully charged 12V 50 AH SLAs?

[TinselKoala]

TK,

See if you can get a decent screen capture of the waveforms at 3:49:14 or so.

This is with the CSR probe on the wrong side of the CSR (and with Q1 passing current).

Look at the current trace, does it look to you as if the current trace is still a bit above zero during the Q1 on times?

PW.

It's impossible to tell where the zero baseline marker is.
These people are not making it easy to interpret the scope traces, but what do you expect from people who only can read numbers in boxes.
And it is also impossible to be certain just where they are moving the probes to, without evidence. They are the Keystone Kops of scoposcopy.

And she has the nerve to criticize my demonstrations. I had to take a beta-blocker a while ago to settle my blood pressure down, and I am not kidding.

It's a good thing the dog barked when he did or you would never even have seen this much.

ETA: At one point Weir says to capture to flash, so maybe they are using the scope to make actual screenshots. Of course who knows when we will be allowed to see _those_ smoking guns.