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Forums
4hv.org :: Forums :: Tesla Coils
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Building solid state tesla coil.Need help

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Arcstarter
Thu Feb 21 2008, 08:56PM Print
Arcstarter Registered Member #1225 Joined: Sat Jan 12 2008, 01:24AM
Location: Beaumont, Texas, USA
Posts: 2253
People have said that using an antenna to drive steve wards class e tesla coil is to hard.I want to use that schematic but if using an antenna poses too many things to overcome,i want to do something different.Is there any other way that requires few components?
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Kizmo
Thu Feb 21 2008, 11:26PM
Kizmo Registered Member #599 Joined: Thu Mar 22 2007, 07:40PM
Location: Northern Finland, Rovaniemi
Posts: 624
You can make secondary base current feedback, which is very similar to antenna feedback but instead of antenna you have current transformer

Like this one:
Link2
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flannelhead
Fri Feb 22 2008, 01:41PM
flannelhead Registered Member #952 Joined: Mon Aug 13 2007, 11:07AM
Location: Finland
Posts: 388
There are basically two methods for feedback with SSTCs:
antenna feedback and secondary base current feedback.
Really many people have used antenna feedback successfully. The biggest problem with antennas is that they can get direct hit from the coil. So put it far enough from the coil! Remember also to ground the secondary well.
Base current feedback is propably more reliable, but I think antenna is still better for first timers. My antenna feedback worked the first time I put on the power. Build antenna feedback first, do some low power testing, then go further and build base current feedback and put more power in.

Good luck smile
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Arcstarter
Fri Feb 22 2008, 04:36PM
Arcstarter Registered Member #1225 Joined: Sat Jan 12 2008, 01:24AM
Location: Beaumont, Texas, USA
Posts: 2253
Thank you guys!I love this forum!i will build the antenna first then build his feedback coil...but were it says "to 7h....)is that were it would go to the ucc37322?Or which ever driver chip i intend to use?
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Kizmo
Fri Feb 22 2008, 05:44PM
Kizmo Registered Member #599 Joined: Thu Mar 22 2007, 07:40PM
Location: Northern Finland, Rovaniemi
Posts: 624
Input from feedback transformer or antenna goes first through inverting schmitt trigger 74HC14
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