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4hv.org :: Forums :: Tesla Coils
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Solid State NST

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cduma
Sat Apr 24 2010, 04:15PM Print
cduma Registered Member #1822 Joined: Fri Nov 21 2008, 08:04PM
Location:
Posts: 300
I recently aquired a 12VDC to 2KVAC ~30KHz at 10mA with an open voltage of 3KVAC. I want to try and use it to make an itty bitty TC.

My question is how would it handle resonant operation?
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Mads Barnkob
Sat Apr 24 2010, 04:32PM
Mads Barnkob Registered Member #1403 Joined: Tue Mar 18 2008, 06:05PM
Location: Denmark, Odense C
Posts: 1968
I have used a rectified 4kVAC 20mA 20kHz SMPS NST for a little marx generator, I remember it as running pretty unstable.
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cduma
Sat Apr 24 2010, 05:25PM
cduma Registered Member #1822 Joined: Fri Nov 21 2008, 08:04PM
Location:
Posts: 300
I will probably make one of those too
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cduma
Wed Apr 28 2010, 02:59PM
cduma Registered Member #1822 Joined: Fri Nov 21 2008, 08:04PM
Location:
Posts: 300
This forum seems kind of dead...

Any more input would be nice! I dont want to break my new toy by making it resonate.
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Mads Barnkob
Wed Apr 28 2010, 03:28PM
Mads Barnkob Registered Member #1403 Joined: Tue Mar 18 2008, 06:05PM
Location: Denmark, Odense C
Posts: 1968
I never killed slash damaged it, it would just at times act up weird and seemed to shut down.
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dmg
Wed Apr 28 2010, 10:25PM
dmg Registered Member #2628 Joined: Fri Jan 15 2010, 12:23AM
Location:
Posts: 627
Mads Barnkob wrote ...

I never killed slash damaged it, it would just at times act up weird and seemed to shut down.

hmm... does that have an in build GFCI?
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cduma
Wed Apr 28 2010, 10:55PM
cduma Registered Member #1822 Joined: Fri Nov 21 2008, 08:04PM
Location:
Posts: 300
I highly doubt that mine has it built in since I have let it arc to everything except for the battery or input wires. Although the other guy displays the symptoms.
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dmg
Thu Apr 29 2010, 05:13PM
dmg Registered Member #2628 Joined: Fri Jan 15 2010, 12:23AM
Location:
Posts: 627
Well, you can always disable the GFCI in the NST. then It should not mysteriously turn off whenever you run it.
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Mads Barnkob
Thu Apr 29 2010, 05:36PM
Mads Barnkob Registered Member #1403 Joined: Tue Mar 18 2008, 06:05PM
Location: Denmark, Odense C
Posts: 1968
gatedbreakdown wrote ...

Well, you can always disable the GFCI in the NST. then It should not mysteriously turn off whenever you run it.

The SSNSTs I have are all potted in a block of varnish or resin, I can draw arcs without a problem, but my best guess is that its overcurrent / overvoltage protection kicks in when it experiences transients. Mine run straight from 230VAC, designed for neon tubes.
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Herr Zapp
Thu Apr 29 2010, 07:34PM
Herr Zapp Registered Member #480 Joined: Thu Jul 06 2006, 07:08PM
Location: North America
Posts: 644
gatedbreakdown -

The GFCI you suggest "disabling" is only present in a conventional AC-powered, iron-core NST, not the solid-state, DC powered, high-frequency power supply this thread seems to be discussing.

Regards,
Herr Zapp
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