My Friends,
Some Researchers are using an Equation to calculate Input Power, and Ignoring the Oscilloscope Math.
The Calculator is provided here: Vishay or Here
The Math is:
PIn = I * V * sqrt( Duty_Cycle ) / sqrt( 3 )
Now this is in the Public arena, with Respect to Jagau, I disagree with this approach of measurement for many reasons which I will discuss.
First, Jagau is My Friend, and I have great Respect for him, but I feel this issue needs to be discussed and corrected, with Respect to Jagau!
Jagau has provided a Completed Equation:
PIn= 0.292a x 24 x sqrt 0.0.382 / sqrt 3 = 2.533 watts
Jagau has provided several Images of his Scope:
Jagau has given this image as his Output Power:
Jagau has stated:
Pin= I*V*sqrt(Duty_Cycle)/sqrt(3)
Pin= 0.292a x 24 x sqrt 0.0.382 / sqrt 3 = 2.533 watts
So for Pout of 4.032 watts i need only 2.533 watts at input, Still a pretty good COP
Of course Mr Has Nothing All Day Long, has stated:
I checked this from the beginning and the results were the same for the manual calculation and for the online calculator.
If you want to understand more just check Dr. Nastase's papers online.
So for me this is already clear: Jagau's calculation method is valid.
It was also verified and confirmed by other members of our core team before Jagau came public with it. Including Yoel. Jagau is a very careful researcher. He asked for double-checks here and also the experts in real life before deciding to move the info in our public section.
So just let's move on, sorry for being blunt but this discussion already took too much time, if there are some who are still not convinced that's not our responsability to convince them all.
Regards,
Fighter
In a VERY Desperate attempt to convince everyone he ( Fighter ) is a Genius and its his magnificent invention that has saved the world from Certain Doom and Destruction!
Fighter is only trying to deceive everyone including himself! Dr. Nastase's papers do not hold water and should NOT be used for Accurate Measurements!
IMPORTANT:
All these Equations are based around the PBE, or Power Balance Equation: PIn = POut, which does not hold when Power is Generated! Or when Power is Lost in the Machine!
Why is the Scope and PSU no where near the Calculations?
You Can NOT use these equations with these machines, and what's more, its already been stated and shown why in other threads here on this Forum:
If Output Power is not Equal to Input Power, then these Equations are Wrong and should not be used! Also RMS Calculations can NOT be used for DC Pulses! Again we have covered this already!
@Jagau, this is why your Scope and your PSU do not agree with your Calculations, I am sorry My Friend! We need to be Accurate and Correct!
@21.4% Duty Cycle you can very easily calculate the Current Mean: ≅0.500A * 2 Div's / 2 = ≅0.500A @21.4% Duty Cycle means Current is On for 21.4% of a Cycle and off for: 78.6% of the time, which gives us: ≅0.200A or ≅200ma, average over 1 Cycle and that's approximately what the PSU shows:
NOTE: The Scope shows 282mv which is also wrong!
I hope you don't take this the wrong way! I feel that this has gone way too far and we need to point out their Mistakes!
Why fighter is pushing Fakery?
Fighter and his "Team" are absolutely dead wrong and should not be misleading people like they are!!!
Conclusion
Jagau's Frequency: 1.044kHz and Duty Cycle: 21.4% is a simple and straight forward Power to measure via any Accurate method, and the PSU does show a reasonably accurate measurement in this case! Especially compared to other methods!
NOTE: I did also point out these In-Accuracies in the Thread: Chris's Waveform Experiment, RMS vs Average which spawned from the thread: Melnichenko's Effect
Dr. Nastase's papers do not hold water and should NOT be used for Accurate Measurements! We have shown this proof here on this thread and in others!
Best Wishes,
Chris