I was doing some experiments using super caps (8.3F /24V) parallel to the Vload and instead of Vload, but it seems that they (super caps) cannot sustain their energy level when the Vload PS is disconnected.
So i wanted to know what power comes out of C1 only using several loads like 12V automotive bulbs etc.
It turns out that none of the automotive bulbs (12V) nor any bicycle bulbs (6V) can be lit directly by the C1 output.
I could barely turn on (pulsating) a 6mm red led (pulling some hundred milliwatts), so i wonder where those exceptional high COP values measured earlier come from, but very likely not from C1.
So is there another way to verify those COP values measured are real?
The diagram shows the used setup for the red led test.
Itsu
Itsu, I have to assume you ran the above tests with C1 at zero bias as your schematic shows. I also have to assume your primary turns is 20 making your V/t=2.4v. Depending on the characteristics of the LED you used, it is very possible that the voltage across C1 would possibly provide a low power to the LED. To really see if the energy in your replications is real, try substituting a high power LED in place of D1 as in your post #594. High power meaning the LED having the ability to handle ~3.8 amps mean. You could then measure the average amps times the average voltage across the LED to see the power across the LED which would be in addition to the power in Vload. To help understand where the power is coming from, let's assume that your C1 which has a bulk capacitance (Cb) of 2680uf, has a charge separated capacitance (Ccs) of 134uf or 5% of Cb. With your V/t=2.4v, then C1 increasing from zero volts to 2.4v, Ccs will reach an energy level of Ucs=2.4^2*134e-6/2=386uJ. Now with a bias of 21.8v on C1 AND with an increase in C1 again being 2.4v, we see a peak voltage across C1 reaching 24.2v. Now our gain in Ccs will be Ucs=(24.2^2-21.8^2)*134e-6/2=7.397mJ. We take advantage of this gain by forcing energy in Vload. This should not be the question. The question should be, how much energy is lost in the bulk capacitance Cb due to this gain in Ccs? IOW, is the voltage in C1 after a completed cycle really greater than the starting voltage in C1? If so, why? The answer is seen if one looks at the voltage at VL1a while measuring the ending voltage across C1. It will be seen to be slightly negative. This is equivalent to a slightly more positive voltage across the primary which will reflect in a slightly higher voltage across C1. Now, what is the capacitance of C1 at this point in time? Is it Cb or Ccs? I have found that with film caps, there is very little difference if any, between Cb and Ccs. With axial Lytics, Ccs will run from 5% to maybe 15% of Cb. Radial Lytics with their axis vertically in the core will be ~10% while placing the axis horizontally in the core will result in ~30% of Cb. Regards, Pm
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Topic: partzmans board ATL (Read 36150 times)
