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Old 9th February 2006, 11:38 PM   #1
bertjan is offline bertjan  Netherlands
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Default Son of Zen and math

Son of Zen and math

When I saw the design of Son of Zen of Mr. Pass a smile came across my face. Power amplifiers are suppose te be complicated. This might be an opportunity for me to try some math on an amplifier so I can better understand.

Here is the result.

A small paper with no difficult math, all functions are linear.
Like Kirchhoff's voltage law, DC load line and AC load line.

I know the attention has been shifted towards Aleph X and its
derivatives, and even there may already be a paper on this subject on the forum. But the amp still stands and its math gave me a better understanding of how an amplifier is build up.


The paperwork was done with OpenOffice.org Writer/Math and TinyCAD.

And of course a big thanks goes to Mr. Pass and his team.
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File Type: zip sozmath1.zip (95.2 KB, 330 views)
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Old 10th February 2006, 12:25 AM   #2
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Actually, the SOZ retains its popularity, and I have a nice
piece on it coming up in the never-ending Zen Variations.
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Old 10th February 2006, 12:27 AM   #3
bertjan is offline bertjan  Netherlands
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I see my file is too large so here is part 2
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Old 10th February 2006, 12:47 AM   #4
moe29 is offline moe29  United States
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Cool new SOZ variation.
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Old 10th February 2006, 01:02 AM   #5
bertjan is offline bertjan  Netherlands
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I see I didn't get the attachment through.
I'll try again.
Here is part 2
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File Type: zip sozmath2.zip (84.3 KB, 137 views)
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Old 10th February 2006, 02:51 AM   #6
Blues is offline Blues  United States
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Quote:
Originally posted by Nelson Pass
Actually, the SOZ retains its popularity, and I have a nice
piece on it coming up in the never-ending Zen Variations.
That kind of Zen is "Just Saucy" Mr. Pass! In shorthand "...J SO Z"...I smell a Jfet SOZ.
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Old 7th February 2016, 12:56 PM   #7
oks81 is offline oks81  Norway
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Is it possible using one 400VA toroid with 2x10VAC sec. for the SOZ?
Can it then be fitted into enclosure like the 4U?
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Old 7th February 2016, 02:54 PM   #8
Zen Mod is offline Zen Mod  Serbia
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10Vac will give too low Vdc for proper function of mosfets - too much of nonlinear capacitance in that voltage area
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Old 7th February 2016, 03:14 PM   #9
oks81 is offline oks81  Norway
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I meant 10VAC that will give ~13VDC on each rail.
Just looking "brtjans" math where he uses 12VDC on each rail.

In article Pass mention using from 15VDC to 57VDC.
http://www.firstwatt.com/pdf/art_soz.pdf

With higher voltage it becomes a monster oven!

But see your point Zen!
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Old 7th February 2016, 05:14 PM   #10
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Quote:
Originally Posted by Blues View Post
That kind of Zen is "Just Saucy" Mr. Pass! In shorthand "...J SO Z"...I smell a Jfet SOZ.
That is my suspicion as well - maybe something using the UJN1208K.
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