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My first results in building a Tesla Coil were encouraging, but running the whole system on a battery pack with a 555 driven flyback transformer was not the best I could get. Still those of you interested in seeing my first steps in the Tesla Coils realm can have a look here My second attempt and the subject of this article, came with a change in the power source. |
So I’ve built a new ZVS driver soldering the components above a heatsink. I’ve used 2xIRFP460 mosfets, 2xBYV26E as fast diodes, 2 15V Zenners and a 50coil iron-core inductor.
For the flyback, first I’ve tried a twin setup, by using two monitor flybacks, both with built-in rectifiers.
The primary must be shared, and the two secondaries connected in series for summed voltage output:
Luckily I’ve found a better flyback that did the job of the two, so I dropped the design above. Still it’s useful when you want to get a bit more voltage and you only have small monitor flybacks.
I’ve used the half wave rectified output to charge a bank of capacitors, summing 6nF 18KV. Here’s the simple Tesla Coil schematics for rectified current:
And here are a few pics and vids showing the Tesla Coil in action:
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Radu Motisan
PocketMagic 
In schema ta inverseaza pozitiile condensatorului primar si a spark gap-ului ca sa iti protejezi mai bine traful si condensatorul. Etanseaza partea de sus a secundarului, izoleaza spirele de la capatul de sus cu banda izolatoare ca sa reduci pierderea prin corona si construieste un mic toroid (cauciuc de la o roata de carut de ex, invelita cu folie de aluminiu, netezita cu dosul unei lingurite ca sa fie cat mai neteda). Toroidul iti va da mai multa capacitanta secundara, arcurile vor fi mai lungi si mai puternice, iar pierderile prin corona vor fi reduse.
Comment by vasil — January 23, 2009 @ 4:09 pm
[…] my previous design I’ve added a second deck, to contain the power source (ZVS+flyback), the capacitor bank and […]
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