Rosemary Ainslie circuit demonstration on Saturday March 12th 2011

[Rosemary Ainslie]

May we conclude then that substituting a lab DC power supply for the battery should/would produce a similar, if not identical wave form and net negative MEAN CSR voltage?

.99

We've considered this but not tried it.  My concern is that that a signal generator already has a rectified waveform. In effect the postive sine is routed clockwise, the negative anticlockwise.  In effect you've already established a variation of those 'two winds' - so to speak.  That may therefore - not work.  But I suppose it's worth trying this out.  I'll pass though.  I'm reasonably certain it won't.  But - as ever - I'D LOVE TO BE PROVED WRONG.

BTW I'm just waiting for daylight to see if I can find those downloads.  Haven't forgotten this.  It may explain things better.

Kindest regards,
Rosemary

[Rosemary Ainslie]

Hi Rosemary,

What voltage and frequency do you need to replace the function generator?  Pure sinewave or other waveform here?

Cheers,
Twinbeard

Hello Twin.  I missed this entirely.  Ideally what's needed is a strong negative signal applied continuously at the gate - but with that transposed condition of the MOSFETs.  Actually from Poynty's hard work here - it seems that we don't need that many put in parallel.  And if you hold fire there - it's also possible that we don't need a functions generator at all.  Let's see what our boffins come up with.  I really am not qualified to answer this.

Kindest regards,
Rosemary

[Rosemary Ainslie]

@poynt99 .It`s not as complicated as it may seem . Will you please answer my question ,as posed in reply number859 , with a yes or no .

Neptune I think Poynty answered you earlier.  There's a general concession that there's a correspondence of numbers between his simulations and our experimental evidence.  But I'm reasonably certain that this is still with the caveat that there are no HIDDEN errors still to be uncovered.  I think we'd all be a bit reckless to claim this as a FACT - certainly until our EXPERTS have a chance to comment. 

But it's looking good.  Still some work to do though - and still some careful analysis.  Especially as it relates to determining the battery sustaining its charge.  But the theoretical implications are that we can make good use of our SINE WAVES that are available from our plug points as well as substituting our utility supples here and there - with some battery supply sources.  This latter may  possibly also need a small solar panel to help sustain the required potential difference.   And all this most certainly and at it's least requires some pause for thought.

Kindest regards,
Rosie

[Rosemary Ainslie]

Professor Walter Lewin?  He is a great guy and MIT is lucky to have him.

Bill

Bill, - he's got some really interesting thinking related to Faraday vs Kirchhoff.  And he argues that Faraday TRUMPS kirchhoff every time.  Which is certainly NOT classical.  Poynty et al discussed this at some length on his forum. 

I agree.  Nice to see that we still have independent thinkers amongst our learneds.  He's up there.

Kindest regards,
Rosie.

[hoptoad]

snip...

I think we'd all be a bit reckless to claim this as a FACT - certainly until our EXPERTS have a chance to comment.

... snip

Whenever I see the word/s EXPERT/S, I can't help chuckling to myself. 

That's because one of my father's favourite expressions has always been:
An EX-SPURT is just a drip under pressure. 

He was a plumber ! 

Sorry, off topic again .... KneeDeep

Cheers