 Series IGBT/mosfet HV "spark gap" / OLTC topology
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swordfish
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Tue Jul 24 2018, 03:38AM
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Registered Member #3218
Joined: Mon Sept 20 2010, 10:42AM
Location:
Posts: 29
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Hi All,
I recently came across the attached papers which detail some options for running mosfets in series for high-voltage switching. I'm wondering if IGBTs could be used with these topologies to make a direct, solid state replacement for conventional SGTCs? It would be a bit like the SISG concept detailed by Terry years ago but would allow active break rate control. Essentially an OLTC but using a HV transformer and capacitor to improve power capability. Any thoughts?
Cheers,
Greg
]series_mosfet_power_supply.pdf[/file]
]series_mosfet_switching.pdf[/file]
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Sulaiman
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Registered Member #162
Joined: Mon Feb 13 2006, 10:25AM
Location: United Kingdom
Posts: 3141
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There have been discussions and a couple of attempts by members here and others,
I can't remember much other than it is non-trivial.
Google should find most of the work done.
EDIT: I just had a quick google but could not find much myself,
I hope your google-foo is better than my memory.
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swordfish
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Registered Member #3218
Joined: Mon Sept 20 2010, 10:42AM
Location:
Posts: 29
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My google skills aren't much better. I see Finn hammer has some kind of triggered SISG but can't find any details...
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