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Old 11th March 2013, 11:04 AM   #231
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Quote:
Originally Posted by dadod View Post
I`ve seen that but thers no psrr graph?
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Old 12th March 2013, 07:47 AM   #232
dadod is offline dadod  Croatia
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Sorry Bogdan, I was occupied with other things. Here is the shuntreg PSRR.
Because I did not find IRF640 model I used IRF530 model instead in the negative polarity, and that shows some small diference(probably).
Damir
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Old 12th March 2013, 06:27 PM   #233
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I asked yo becose I get different data in microcap. Do you measure it the same way with AC analysis?
db(v(OUT)/v(in)) where v(OUT) is the regulator output voltage and v(in) is ac voltage at the regulator input (before ccs).
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Old 12th March 2013, 09:21 PM   #234
dadod is offline dadod  Croatia
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I forgot to remove 1000u caps at the reg input, here is without those caps.
To get PSRR I change DC sources to AC sources with DC offset of 42V and make them AC1, then plot 1/v(vout).
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Old 26th March 2013, 09:28 PM   #235
dadod is offline dadod  Croatia
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Assemblig progress.
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File Type: jpg GainWire-asembling-1.jpg (265.7 KB, 228 views)
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Old 27th March 2013, 09:35 AM   #236
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Thumbs up cheers!

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Old 9th April 2013, 01:07 PM   #237
dadod is offline dadod  Croatia
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I am listening for a few days now this line/headphone amp and I am very, very satisfied with the music coming out of it.
The skeleton and the muscle are finished and now I have to put some skin around it. Final schematic is here and some photographs too.
BR Damir
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File Type: jpg GainWire-final-sch.jpg (134.0 KB, 240 views)
File Type: jpg Gaiwire-finished-1.jpg (229.1 KB, 207 views)
File Type: jpg Gaiwire-finished-2.jpg (352.9 KB, 110 views)
File Type: jpg GainWire-finish-3.jpg (228.4 KB, 101 views)
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Old 10th April 2013, 05:41 AM   #238
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Quote:
Originally Posted by dadod View Post
I am listening for a few days now this line/headphone amp and I am very, very satisfied with the music coming out of it.
The skeleton and the muscle are finished and now I have to put some skin around it. Final schematic is here and some photographs too.
BR Damir
lucky you!
please send asc file for last version
thank you in advance
PS I am going to build it too as pre for power buffer, but when???
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Old 10th April 2013, 02:40 PM   #239
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Originally Posted by padamiecki View Post
lucky you!
please send asc file for last version
thank you in advance
PS I am going to build it too as pre for power buffer, but when???
Thank you padamiecki,
Here is the last file.
BR Damir
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File Type: asc GainWire-finall-IIII.asc (10.7 KB, 62 views)
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Old 12th April 2013, 03:52 PM   #240
Telstar is offline Telstar  Italy
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Very nice thread
What's the gain and can you post FFT with 1VAC input, at 20khz?
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