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Registered Member #3625
Joined: Mon Jan 17 2011, 12:15PM
Location:
Posts: 5
Is there any difference in connecting the tank capacitor in series or parallel with the primary coil in terms of the life of tesla coil components or overall tesla coil performance?
Registered Member #2922
Joined: Sun Jun 13 2010, 12:08AM
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Posts: 226
depend of the operation class of your tesla coil, in a drsstc, or sgtd the tank need to be in series, it make, when is in ressonance, a low impedace path and high current peaks in parallel it will not wrok. but is diferent for vttc or class e
Registered Member #3625
Joined: Mon Jan 17 2011, 12:15PM
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Posts: 5
Gregory wrote ...
depend of the operation class of your tesla coil, in a drsstc, or sgtd the tank need to be in series, it make, when is in ressonance, a low impedace path and high current peaks in parallel it will not wrok. but is diferent for vttc or class e
So why is it that on some web pages, and numerous classic texts on Tesla Coils, they have the capacitor connected in parallel with the primary in a SGTC? By parallel I mean this arrangement:
Registered Member #3414
Joined: Sun Nov 14 2010, 05:05PM
Location: UK
Posts: 4245
I've been following this thread (and others) and wondering about this myself.
I built this circuit about ten years ago, but I used a rectified flyback and I had a high value resistor in series with the flyback secondary and the capacitor. I forget the exact value of the resistor)
At that time it was the only TC circuit I found on the net. (maybe there were others, but I didn't find them). I didn't use it for a TC but used it for an HF supply for a TIG welder. (It was powered by the single transistor flyback driver)
All the circuits these days though, seem to have the spark gap in parallel with the transformer output and the capacitor in series with the air core transformer.
Registered Member #2922
Joined: Sun Jun 13 2010, 12:08AM
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la_mancha: You need to know that when the spark gap fire, the capacitor will be in parallel with the primary, it happen with the others SGTC circuits! The difference is how it is drawn it the schematic, see the other circuit that the capacitor appear be in series and you will see that when the gap fire the LC will be in parallel.
Registered Member #152
Joined: Sun Feb 12 2006, 03:36PM
Location: Czech Rep.
Posts: 3384
In a SGTC, when the gap fires it creates a resonant LC circuit. As there is no longer any power supply in that circuit and it oscillates by its own damped oscillations, you can't say if it is parallel or series - it is just a cap connected to a coil. This is the same for both versions of the circuit.
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Tank capacitor in series or parallel with the primary?
