Graham Gunderson's Energy conference presentation Most impressive and mysterious

[Grumage]

I'll gladly buy you that Cheese Burger if you make out to Spokane some time. My favorite is the Wendy's #2 with Blue Cheese crumbles.

OMGyou have managed to cause salivation at a distance of 3000+ miles!!

[k4zep]

It's quite amazing what you've been able to do over the years in your 2x4 lab Ben. Makes me smile   each time I see one of your videos


Sorry I don't know. BTW, I not claiming there,s anything special to the waveform I've produce other then it looks much like Graham's

All the best in your experiments



Luc

Thanks Luc,

I still manage to loose stuff while working! Like where did I put that "special" resistor, etc.
However I do like the simplicity of your circuit!!!!

I personally like a "Whopper" heavy everything!!!!

Thanks
Ben K4ZEP

[ramset]

Gents
Some clarity on TK's happy meal ,"I Has cheeseburger ??"

In the gentlemans bet department ...

We bet with fast food on ultimate outcomes,

I think I owe Tinsel a small boxcars worth of Cheeseburgers at this point.
But the answer to that "I has cheeseburger??"

NOT YET !!

Havent even fired up the griddle on this one yet Tinsel.....

[Lidmotor]

Did someone mention "Cheeseburger".  I know things are really getting serious when I see that.  I can't do anything about this build but I am watching with great interest.  The people working here are some of the best on this forum.  I think it is a simple miss measurement personally but you guys will find out.  I have known some of you for years and the truth to this invention will come out  one way or another.  Cheeseburgers all around for the good effort. 
--Rusty

[TinselKoala]

TK,

I have no issue with Gunderson measuring his Pin after the H-bridge. I think we can cut him some slack here, as obviously the transformer gadget is the DUT. It just requires a particular input wave form.

If the transformer itself is measured to have a COP>1 that is all that counts, right?

If you had a DUT that required a square wave input, you would measure the output power of your FG, not its AC input, agreed?

It depends. If the FG was only providing a clock input then it might be acceptable to measure only its power output. But in this case the H-bridge is providing the power to the transformer, and as such is a critical part of the device. OK, I'll accept that you can ignore the timing input to the H-bridge, but you cannot ignore the input of power that is being switched by the bridge.

I've obviously encountered this issue before, and I've built oscillator-driver circuits that are powered by the overall power supply to the DUT, or even from the bank of batteries that the DUT is supposed to be charging (hence "output")  so that there is no question about where the power is coming from.

I say again, if a component or subsystem is necessary for the device to operate, the power supplied to those components or subsystems must be included in the "input power" of the device. For a simple square wave clock signal, obviously what is generating this signal could be a mains powered FG, or it could be replaced with an oscillator-driver that is powered from the DUT's own power supply or even its output power. But in this case the H-bridge is supplying power to the transformer over the link where a measurement of "0.000 Watts" has been quoted, yet the device keeps running, and this link cannot be broken if the device is to keep on running. Hence the H-bridge is a critical component of the DUT and its input power must be included in the COP calculation.

OK, I will allow the power to the _clock_ signal generator for the H-bridge to be ignored, but not the power that is being switched by the H-bridge, this must be included.