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Re: Exact design for lossless SSTCs
Original poster: "Antonio Carlos M. de Queiroz" <acmdq-at-uol-dot-com.br>
Tesla list wrote:
>
> Original poster: "jimmy hynes" <chunkyboy86-at-yahoo-dot-com>
> Yeah, that's what I was doing. I eventually decided to skip that approach.
> Once sparks started
> flying, it was very difficult to keep a good notch. Getting bigger sparks
> wasn't easy either.
> Getting bigger bangs meant more cycles and a lower k, so tuning and
> streamer loading was even more
> important.
This is really a problem. But even with the range of k usual for
capacitor
discharge coils a large increase in voltage gain is possible. The
problem
is that this may be not enough, since the input voltage is in the
hundreds of Volts, not in the thousands.
> At one point, my current transformer broke, so I started tuning for largest
> sparks instead (too
> lazy to fix it :p). That method ended up giving bigger sparks, so I decided
> to abandon the old
> idea. The streamer load does keep the primary current down, so there isn't
> too much energy just
> going into the primary and back to the lytics.
What kind of input current waveform did you get with this approach?
I see that there are usually three possibilities that result in "soft
switching" (input voltage in phase with the input current): One is
to drive the system exactly between the resonances (what I am
proposing).
The others are at the resonances (impressive results, but somewhat
dangerous for the driver).
Antonio Carlos M. de Queiroz
Antonio Carlos M. de Queiroz