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Registered Member #2591
Joined: Fri Jan 01 2010, 11:58AM
Location: netherlands
Posts: 76
hello guy's,
I was thinking of making a tesla coil of +/- 4 mhz and use the mazilli driver, I have verry fast mosfets from ixys (ixfn55n50f) +verry fast mosfet drivers (ixys deic420)
also I wan't to make it audio modulated in high quality, if this is not possible, or I can better take another road, please tell me.
edit: sorry, it is in the wrong thread, used to be in the tesla coil threads..
Registered Member #89
Joined: Thu Feb 09 2006, 02:40PM
Location: Zadar, Croatia
Posts: 3145
Hi tritium
mazzili driver at high frequencies and especially high voltages is problematic, and is most likely going to go boom instantly if you attempt to use the diode feedback and no overcurrent protection of any kind.
To get the maximum chances of this working, try using voltage feedback from the primary tank circuit using a transformer and feed this into a fast comparator, then into DEIC's (IXDD414's will probably work for this frequency too) which then drive the mosfets... for overcurrent protection, put a shunt between mosfet sources and GND and use a LM311 and NE555 to disable the drive in case of fault.
You'll also likely need some startup oscillator to get everything going.
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