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4hv.org :: Forums :: Tesla Coils
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Max current of a CM300, place your bets now!

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Steve Conner
Thu Sept 25 2008, 09:55AM
Steve Conner Registered Member #30 Joined: Fri Feb 03 2006, 10:52AM
Location: Glasgow, Scotland
Posts: 6706
The internal mutual inductance may well be less than 60nH, but you forgot to multiply by 2*pi when calculating di/dt, which will make up for it :P
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Steve Ward
Fri Sept 26 2008, 02:46AM
Steve Ward Registered Member #146 Joined: Sun Feb 12 2006, 04:21AM
Location: Austin Tx
Posts: 1055
Good call, i thought something seemed funny there :P.

Well, i just mounted a bunch of bricks to the "mother of all heatsinks" so maybe this weekend i can rig up my proper MMC and primary and actually run the thing at expected BPS and such and do some endurance testing. I guess it should hopefully not blow up in less than 30 minutes :P. I think the bricks will be just fine at 2000A (we used to run my coil at 1800A quite often), and probably not much worse off at 2500Apk. 2 bridges in sync will provide the 5000A necessary. Next order of business is ensuring proper current sharing, and avoiding shoot-through between the output legs of each bridge.
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