Quote from: webby1 on April 19, 2017, 09:40:51 AM
How would you choose to denote the energy exchange in a single cycle as compared to many cycles?

If I have 1V @ 1A for a single cycle is that the same as for 1000 cycles?

If that single  cycle takes 1 second,, or if the 1000 cycles take 1 second,, how would you compare them?

I was just interpreting what I think Nelson was saying. watt is a watt, and the difference between the Wh and W according to nelson they are the same just read over different periods of time. So it is like saying that the Kg is not the same as mg in a way.

I suppose you would have to average them out. Id say as long as you have at least 1 full ac cycle that the average should equate to that fraction of an hour if it were measured in 1 sec. If in 1 sec you only measured 1/4 wave of the ac cycle, that would not give an accurate depiction of power used over a longer period of time. Thus the Wh? 

Mags

Quote from: TinselKoala on April 18, 2017, 06:17:22 PM

QuoteQuote from: tinman on April 18, 2017, 10:26:14 AM

TK

Are you able to power a small load(E.G an LED) from a pickup coil(secondary) placed on top of the BPC,without it effecting this zero voltage across your CVR.?

Brad

No, when powering a LED load at the TBF's resonant frequency the CVR voltage trace does not quite "flatline" any more, it indicates about half a milliamp at flattest. This is with just enough amplitude of the signal input to the TBF to produce a slight glow in the LED. Of course if I go off the resonant frequency I can get a lot more power to drive the LED much more brightly from the pickup coil, especially if I go to the pickup coil's own resonant frequency, as the previous frequency scans show. The CVR trace grows then too. 

Here's a scopeshot of the "flattest" CVR line while powering a slightly glowing LED from the pickup coil. Yellow=CVR trace, with the current value shown being a little smaller than actual because the scope thinks I'm using a 10 ohm CVR but actually I'm using 9.4 ohms. Blue = across LED and pickup coil.

Trying that too shows that my led on the pickup coil does not light up when at the resonance frequency (313KHz) of the TBP coil.
When shifting the frequency to the pickup coil resonance frequency (2.5Mhz), it does light up the led.

Adding a 3nF cap parallel to the pickup coil / led lowers the resonance frequency to 313Khz which is where the TBP coil resonance frequency was
and now does light up the led brightly on 313Khz.

However, the resonance frequency of the TBP coil now has shifted to 389Khz, so no more flatlined current / resonance at 313Khz.

Its like pressing a balloon, it gives way, but expands somewhere else.

Itsu

   Ampere = Coulomb / second

If a coulomb is a gauss, the magnetic field of the wire can be figured out in a flash.

Quote from: webby1 on April 19, 2017, 10:09:11 AM
Or if that full cycle is in 0.001seconds.

Energy and power,, energy you could say is 1 cycle,, power is how many of those cycles you have per second or hour.

They may be sort of the same unit but they are not saying the exact same thing,, potential to do work and how much work is done,, I could vacuum the floors today <= potential,, I vacuumed the floors today <=work done 

Ok, cool.

Mags

Quote from: itsu on April 19, 2017, 10:07:11 AM

No, when powering a LED load at the TBF's resonant frequency the CVR voltage trace does not quite "flatline" any more, it indicates about half a milliamp at flattest. This is with just enough amplitude of the signal input to the TBF to produce a slight glow in the LED. Of course if I go off the resonant frequency I can get a lot more power to drive the LED much more brightly from the pickup coil, especially if I go to the pickup coil's own resonant frequency, as the previous frequency scans show. The CVR trace grows then too. 

Here's a scopeshot of the "flattest" CVR line while powering a slightly glowing LED from the pickup coil. Yellow=CVR trace, with the current value shown being a little smaller than actual because the scope thinks I'm using a 10 ohm CVR but actually I'm using 9.4 ohms. Blue = across LED and pickup coil.


Trying that too shows that my led on the pickup coil does not light up when at the resonance frequency (313KHz) of the TBP coil.
When shifting the frequency to the pickup coil resonance frequency (2.5Mhz), it does light up the led.

Adding a 3nF cap parallel to the pickup coil / led lowers the resonance frequency to 313Khz which is where the TBP coil resonance frequency was
and now does light up the led brightly on 313Khz.

However, the resonance frequency of the TBP coil now has shifted to 389Khz, so no more flatlined current / resonance at 313Khz.

Its like pressing a balloon, it gives way, but expands somewhere else.

Itsu

Well i believe you guys. It just seems odd that at resonance the initial scope shot showing unloaded regular coil as producing the highest output, yet loaded it is not the case and reacts oppositely, it seems.

Soo what if we have identically tuned tbf? I have 1 more roll of the flat 14ga. Gunna wind that up.

Mags