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Re: Re: [TCML] tank circuit power



On 28/5/2012 05:21, Steve Ward wrote:
Another comment i'd offer up is using spice or something to do your
energy integrals.  You just gotta set up a circuit with the right R,
L, and C and let it ring down, and spice will figure out the numbers
for ya...  Well thats the lazy way i guess.  Talk to Antonio about
solving the real integral, though im sure i did it at some point for
homework ;-).


If the source of (possible) loss is identified, a simulation, even with lumped elements, will reproduce the waveforms quite well. The first thing that I observe is that 15" sparks are not small at all for a NST power supply. It's actually quite difficult to obtain a
so long spark without using a lot of power.
Supposing that the system is really losing energy, the capacitors, vaguely described, are the main suspects, with the spark gap following. Both may be leaking, depending on how they are assembled, impeding enough voltage rise on the primary circuit. An oscilloscope observing just the primary circuit would identify if its quality factor is high enough and if the gap is working correctly.

Antonio Carlos M. de Queiroz
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