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Registered Member #146
Joined: Sun Feb 12 2006, 04:21AM
Location: Austin Tx
Posts: 1055
I see the snubber circuit is still in question. I have in fact abandoned the active snubber after it failed, quite violently, earlier this year. I'm uncertain whether it was a rouge spark hitting the snubber electronics that triggered the failure, or if i messed up the circuit when "improving" its wiring and mounting to the coil frame (i didnt bench test after re-wiring, maybe i goofed up). Now i've implemented a very simple passive snubber that uses a resistor and TVS diode bank. The schematics should make it pretty clear, i hope.
Registered Member #2694
Joined: Mon Feb 22 2010, 11:52PM
Location: Russia, Volgograd (Stalingrad).
Posts: 97
Steve Ward wrote ...
I see the snubber circuit is still in question. I have in fact abandoned the active snubber after it failed, quite violently, earlier this year. I'm uncertain whether it was a rouge spark hitting the snubber electronics that triggered the failure, or if i messed up the circuit when "improving" its wiring and mounting to the coil frame (i didnt bench test after re-wiring, maybe i goofed up). Now i've implemented a very simple passive snubber that uses a resistor and TVS diode bank. The schematics should make it pretty clear, i hope.
Registered Member #56785
Joined: Fri Aug 28 2015, 02:54PM
Location:
Posts: 20
BSVi wrote ...
Why don't you just shut down buck in overcurrent condition and let groundstrike consume ~40 J of energy that is left in LC filter?
I dont think that could harm bridge. From my experementation, such an long streamer has considerable impedance and primary current rises by only ~100Ð. So I think it's safe to disable buck and let system rampdown by itself.
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The "Fat Coil" QCW Tesla Coil
