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Old 7th September 2006, 10:50 AM   #11
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Quote:
Originally posted by MEGA-amp


John

I wish you a solution.
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Old 19th September 2006, 03:04 AM   #12
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After blowing up a few mosfets with my 53V rails, it worked one day fine, the next it blew up Did some digging and reading up about parallel/bridged schemes, i'd like to try it out...or at least parallel first, as I dont have my XBOSOZ anywhere near completion, so balanced is out for now. The parallel is fairly straight-forward, in the future i'd like to bridge it and drive it balanced, but i'm not quite sure how to connect it. I'm not very good with some of the nomenclature, and I couldnt find an actual schematic of what some of these threads were describing...so here you go.
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Old 19th September 2006, 03:06 AM   #13
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??
Do I replace C3,C4 with resistors? What other changes to the original Zen need to be made to drive it balanced?
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Old 19th September 2006, 04:55 AM   #14
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Hi MEGA-amp,


I hope my example will help.
Mine has current bias of 1.32A.
If you want 2A bias, reduce R0, R14 and R15 down to 0.33ohms.
If you want 3A bias, down to 0.22ohms. As you know . . .


Enjoy!
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Old 19th September 2006, 10:43 AM   #15
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Perfect JH!!

Thank You.

John H.
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Old 19th September 2006, 08:42 PM   #16
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We can assume that the channel is drawing lots of current,
and since that depends solely on the current source Q2, you
can quickly narrow it down to Q2 blown or the drive for Q2
(the pnp transistor) is feeding it too much voltage.
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