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4hv.org :: Forums :: Tesla Coils

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Choosing QCW switches

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LAN_403

zzz_julian_zzz

Wed Mar 19 2014, 03:53AM

Registered Member #3964 Joined: Thu Jun 23 2011, 03:23AM
Location: Valenzuela City
Posts: 332

Steve Ward wrote ...
the ones that had the least inductance and resistance in the circuit. Making a completely symmetric parallel circuit is pretty difficult, so i changed to 4 seperate H-bridges, and tie their outputs together through some means of balancing.

Yes, I experienced this also (twice), by paralleling 2 MOSFET in my drsstc fullbridge (total of 8 fets), I blew the mosfet nearest to the Primary capacitor, and its mysterious because the other FET that is paralleled it to it is okay.. :/ don't know what is happening there..

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