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Registered Member #540
Joined: Mon Feb 19 2007, 07:49PM
Location: MIT
Posts: 969
There is another simple driver called the Mazzilli flyback driver. There are some advantages and disadvantages with staying with the 2N3055 driver though. The 2N3055 driver requires less parts and also is less dangerous so if you got shocked by the high voltage output, it wouldn't hurt you as badly. The Mazzilli driver is a lot more efficient, can have more power pushed through a flyback, and is still pretty simple.
Here is the Mazzilli flyback driver (aka the ZVS flyback driver)
Registered Member #1577
Joined: Sun Jul 06 2008, 05:16PM
Location:
Posts: 16
well I'm going to make a tea laser with it and use it in my science fair so mine first one will do fine but then when i get another fly back for my own uses hehe
Registered Member #1577
Joined: Sun Jul 06 2008, 05:16PM
Location:
Posts: 16
I got a neon transformer it says out put 3.5kv.It has no plug the input side.How do i tell the polarity..THis will be the first time messing around with the mains
Registered Member #540
Joined: Mon Feb 19 2007, 07:49PM
Location: MIT
Posts: 969
Is your NST a new type or an old type? If it is a new type, I don't think it likes having the output see a load like an arc. If it's the older type, they are usually heavier and also they are usually just a transformer potted in some material.
There is a primary side and a secondary side to a transformer. Since it's line voltage, there is no polarity. The secondary side is the side with the insulators and the primary side is the side with either smaller ones or none at all.
Test the NST by connecting the primary terminals to the line and see if you can start an arc across the secondary. You would want to use an insulated stick called a chicken stick to decrease the chances of you getting shocked by the output.
Registered Member #1739
Joined: Fri Oct 03 2008, 10:05AM
Location: Moscow, Russia
Posts: 261
Myke wrote ... If it is a new type, I don't think it likes having the output see a load like an arc.
In fact it likes, or at least has no choice - in the default operation it's also a ballast aimed to handle a high-intensity glow discharge in the tube. The resistance of such a discharge is not much higher then the one of an air arc if "let loose", so the ballasting functionality should allow any NST to work normally under an arc load.
Registered Member #1577
Joined: Sun Jul 06 2008, 05:16PM
Location:
Posts: 16
well thanks to your help it works. I'm just using some rubber handle pliers as a "chicken stick".Anything better i could use. Plus I'm only 11 so i want to stay healthy.
Registered Member #1107
Joined: Thu Nov 08 2007, 10:09PM
Location:
Posts: 792
Yes, there is better things to use ^_^ at 10kv the voltage can arc right through the rubber pliers. Get some 1/2 pvc pipe and cut about 12" of it and drill 2 holes at the end and run a copper electrode out of it and connect the flyback ground pin to it as there is less potential at that end.
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fly back driver
