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Old 28th March 2011, 01:57 PM   #21
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Quote:
Originally Posted by BMW850 View Post
Hi jackinnj,

How do you think about to compare also the Sallas regulator, you find this tread here:
The simplistic Salas low voltage shunt regulator

Regards,
Rudy
It's an enormous thread with around 4,000 posts. I have printed out a couple of the schematics, but have to figger out which one is the definitive Salas!
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Old 28th March 2011, 01:58 PM   #22
hesener is offline hesener  Germany
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have the same problem.... is there a "summary" somewhere?
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Old 28th March 2011, 04:13 PM   #23
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Originally Posted by MatchASM View Post
so I guess at some point even the most critical audiophile is happy with the remaining noise floor?
Funnily enough I think if the regs output noise is not correlated with the load current, then it doesnt matter very much in and of itself.

To me that, means achieving that means very low output Z over a wide bandwidth is highly desirable, but after filtering out incoming crud and being 'reasonably' quiet over a nice wide bandwidth - there's no need to go mad on noise. Focus on regulation.
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Old 29th March 2011, 01:40 PM   #24
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Originally Posted by jackinnj View Post
OK -- here's the PSRR test of several regulators mentioned -- the Belleson is consistent, but hardly outstanding.

I used a Jensen 600:600 ohm transformer -- very flat from a few Hz to 200kHz -- it's the model AP uses in their PSRR test. The injected voltage was 1V RMS.
What I find most interesting about those PSRR plots is that the Belleson's is, as you observed, consistent. None of the usual PSRR degradation with increasing frequency, well, at least not within the test bandwidth.
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Old 29th March 2011, 04:01 PM   #25
BMW850 is offline BMW850  Netherlands
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Hi jackinnj,

This is the final definitive schematic of the Salas regulator.
I hope this is the right one, I ask in the other thread the schematic and I get this one.

Regards,
Rudy
Attached Images
File Type: gif 1V2RnegMedium.gif (8.9 KB, 1273 views)
File Type: gif 1V2RposMedium.gif (9.4 KB, 1343 views)
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Last edited by BMW850; 29th March 2011 at 04:16 PM.
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Old 29th March 2011, 04:39 PM   #26
BMW850 is offline BMW850  Netherlands
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Maybe this one is also interesting Peter Daniel use this one in the Shigaclone and his DAC.
Finally, an affordable CD Transport: the Shigaclone story

Regards,
Rudy
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File Type: jpg reg.jpg (60.4 KB, 1257 views)
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Old 29th March 2011, 09:58 PM   #27
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Originally Posted by BMW850
Maybe this one is also interesting Peter Daniel use this one in the Shigaclone and his DAC.
Good topology, bad implementation.
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Old 1st April 2011, 04:31 PM   #28
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Originally Posted by BMW850 View Post
Hi jackinnj,

This is the final definitive schematic of the Salas regulator.
I hope this is the right one, I ask in the other thread the schematic and I get this one.

Regards,
Rudy
Some of the earlier ones I simmed -- I get very good numbers.
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Old 6th April 2011, 11:26 AM   #29
BMW850 is offline BMW850  Netherlands
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Originally Posted by jackinnj View Post
Some of the earlier ones I simmed -- I get very good numbers.
Hello jackinnj,

How are the measurements at the moment now.
Have you done comparisons with the other regulators, which regulator have the best papers ?

Regards,
Rudy
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Old 6th April 2011, 12:17 PM   #30
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Originally Posted by BMW850 View Post
Hello jackinnj,

How are the measurements at the moment now.
Have you done comparisons with the other regulators, which regulator have the best papers ?

Regards,
Rudy
Nothing to report.
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