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4hv.org :: Forums :: High Voltage
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ZVS flyback transformer (now broken)

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Thomas W
Thu Mar 24 2011, 07:54PM
Thomas W Registered Member #3324 Joined: Sun Oct 17 2010, 06:57PM
Location:
Posts: 1276
im not sure but im worryed that something might have broken
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Thomas W
Thu Mar 24 2011, 07:58PM
Thomas W Registered Member #3324 Joined: Sun Oct 17 2010, 06:57PM
Location:
Posts: 1276
also does it overly matter if im useing stranded wire?
or does it haveto be magnet wire?
(its 30A inselated heavy duty wire)

EDIT: oops forgot double post

EDIT: ok i just did a check turns out i put a zener diode the wrong way around :S
could that brake it?
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Inducktion
Thu Mar 24 2011, 08:29PM
Inducktion Registered Member #3637 Joined: Fri Jan 21 2011, 11:07PM
Location: Buffalo, NY
Posts: 1068
Tom Williamson wrote ...

also does it overly matter if im useing stranded wire?
or does it haveto be magnet wire?
(its 30A inselated heavy duty wire)

EDIT: oops forgot double post

EDIT: ok i just did a check turns out i put a zener diode the wrong way around :S
could that brake it?

Where'd you use the stranded wire? If it was for the inductor that may be causing too much leakage inductance. Try thinner gauge wire to tightlier (not a wordwhatever) wind the toroid. It helps, and also, use a powdered iron toroid. Ferrites tend to give too much inductance and therefore little tiny arcs.
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Thomas W
Thu Mar 24 2011, 08:34PM
Thomas W Registered Member #3324 Joined: Sun Oct 17 2010, 06:57PM
Location:
Posts: 1276
the stranded wire is for the primary
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James
Thu Mar 24 2011, 08:49PM
James Registered Member #3610 Joined: Thu Jan 13 2011, 03:29AM
Location: Seattle, WA
Posts: 506
I used #18 stranded wire for most of my primary windings because it's what was laying around. Mostly wires salvaged from a pile of dead ATX power supplies. The primary winding is not critical at all, a piece of lamp cord would work fine. If you wind it bifilar, do make sure you get the polarities right, it needs to be wired as one center tapped winding all wound the same direction.
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Thomas W
Fri Mar 25 2011, 08:13AM
Thomas W Registered Member #3324 Joined: Sun Oct 17 2010, 06:57PM
Location:
Posts: 1276
i did some more testing
turns out one side does not cause it to cut out
but the other side of the Coil does (the one connected to the side where i put the diode the wrong way around (fixed now))
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