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Registered Member #56
Joined: Thu Feb 09 2006, 05:02AM
Location: Southern Califorina, USA
Posts: 2445
by the flyback circuit I assume you mean the camera charger? I honestly don't know what magic occurs in that circuit, I just took the parts off of the camera pcb and soldered remade the circuit without the pcb. The board I started with only had the 1 resistor and 1 transistor on it (aside from the rectifier diode and trigger circuit).
Registered Member #1389
Joined: Thu Mar 13 2008, 12:50AM
Location: Pittsburgh, PA
Posts: 346
It is hard to tell from the pictures, but are the caps discharged directly into the winding as a short? Or is there more to it than that? I just got a hold of 5 CRT monitors and I have three of the boards out already, and I as I was thinking of things to do with them, I stumbled onto this. I was thinking perhaps of using my mini CW multiplier to charge up one of my homemade 22uF 20kV caps and dumping it into something like this, but somehow that doesn't seem like a good idea.
Registered Member #1225
Joined: Sat Jan 12 2008, 01:24AM
Location: Beaumont, Texas, USA
Posts: 2253
Firefox wrote ...
It is hard to tell from the pictures, but are the caps discharged directly into the winding as a short? Or is there more to it than that? I just got a hold of 5 CRT monitors and I have three of the boards out already, and I as I was thinking of things to do with them, I stumbled onto this. I was thinking perhaps of using my mini CW multiplier to charge up one of my homemade 22uF 20kV caps and dumping it into something like this, but somehow that doesn't seem like a good idea.
Your kidding me right? Not about the idea, but the thing about a homemade 22uf capacitor? How did you do that?!
Anyway, i don't think a flyback could handle that. If you already have 20kv why do you need anymore? The only way to get a whole lot more is a tesla coil. Ha i am prolly wrong about that. You can use a marx generator. My favorite is uzzors's. It was made with all simple stuff, but produces quite a spark!
Registered Member #1389
Joined: Thu Mar 13 2008, 12:50AM
Location: Pittsburgh, PA
Posts: 346
Oops, I meant 22nF heh. Or I just used 1000 of my 22nF caps to make a 22uF cap. But in all seriousness, do you think a flyback could handle a 20kV input pulse for that split second?
Registered Member #1225
Joined: Sat Jan 12 2008, 01:24AM
Location: Beaumont, Texas, USA
Posts: 2253
Firefox wrote ...
Oops, I meant 22nF heh. Or I just used 1000 of my 22nF caps to make a 22uF cap. But in all seriousness, do you think a flyback could handle a 20kV input pulse for that split second?
Well i did make a flyback driver with a tesla coil circuit. It was about 2kv transformer from a bug zapper and it was a .5nf capacitor. I would say that the flyback failed shortly after because i drove it too hard with that circuit, but it was a very small flyback putting out quite long but thin sparks. I would say if you kept the gap small on the flyback output and the trigger gap on the cap(figuring you would use a spark gap as a trigger)it could probably go through a few pulses( more like 100's).
Registered Member #1107
Joined: Thu Nov 08 2007, 10:09PM
Location:
Posts: 792
i have overdriven a trigger coil up to 10kv without any problems but the spark was very dim and i couldent feel anything when i used my finger as an electrode.
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