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Registered Member #2513
Joined: Mon Dec 07 2009, 02:03PM
Location:
Posts: 4
I forgot to mention, the transformer i am using, i only rewound the primary (3+3 turns, center tapped) leaving the original secondery intact.(just because i can't remove it without distroying the ferrite core.) may be that has somthing to do with it?
A guy on anouther forum said:
The output of the flyback is in the order of 20-40kV, so charging a 450V capacitor with it will not work
but on uzzors sit he actually calls it a capacitor charger, saying:
The charge time to 430V on a 3.29mF capacitor bank was clocked to 6.3s
Registered Member #2614
Joined: Sat Jan 09 2010, 08:57AM
Location: Bucharest, Romania
Posts: 26
A TV/monitor flyback will not charge caps unless you rewind it entirely. There is not enough current available. And if there is, your 450v caps will explode.
Build this one: or a variation of this: I built the second one and it can easily be adjusted between 200-300v, and even higher if you use a higher voltage mosfet (i use IRF830 which is good to 500v) and change the voltage divider. I do need a better inductor core for sustained power output but it's quite fast at charging caps.
As for the flyback drivers, i don't really know as i haven't built one yet.
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Flyback project
