The simplistic Salas low voltage shunt regulator - Page 564 - diyAudio
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Old 19th December 2012, 05:35 PM   #5631
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thanks! will do that in a couple of days a report back.
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Old 20th December 2012, 09:31 AM   #5632
massimo is offline massimo  Italy
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Salas, is the attached sch the latest for the SSLV v1.2R (target o/p:35V) or did I miss any update?

Thank you!
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Old 20th December 2012, 03:03 PM   #5633
Salas is online now Salas  Greece
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I did not change those types, that is it.
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Old 20th December 2012, 03:14 PM   #5634
massimo is offline massimo  Italy
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Best whises Nick
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Old 30th December 2012, 05:18 PM   #5635
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Quote:
Originally Posted by Salas View Post
His scope does not show a periodic waveform, just glitches here and there. I would take the 2 wires directly on C38 and see what happens by making it bigger or smaller, preferably using Tantalum cap.
hi,

sorry for late reply. Tried to remove C38 and found out that I've already removed it when connected the reg, so it looks very weird now. Should I add it and see if something changes

btw, there is another v1.0 shunt reg that works fine (no similar pics at all) and is connected to several opamps.

Happy New Year & new great projects to everybody
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Old 31st December 2012, 06:10 AM   #5636
Salas is online now Salas  Greece
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Add a Tantalum one if you got, and look with your handheld scope.
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Old 31st December 2012, 07:22 AM   #5637
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Anywhere to buy boards or kits for this regulator? Thanks
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Old 31st December 2012, 07:26 AM   #5638
Salas is online now Salas  Greece
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Old 7th January 2013, 10:06 AM   #5639
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Hey Diy'ers,

I've been following this thread with interest on & off for some time now yet have not seen any measurements/discussion about the HF (HF output impedance, i.e. e.g. 200 kHz to ~10 MHz) response of the shunt regulator. If this has been discussed might one of you guide me to the relevant posts?

Greetings,

Jesper
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Old 7th January 2013, 12:21 PM   #5640
Salas is online now Salas  Greece
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These are the sim curves for 1.2R and Reflektor (the two versions that fair better in that respect). A 1.1 reg was measured by a member on AP station up to 100kHz once and followed well, fairing a bit better than the sim actually. So the sims should be trustworthy enough.
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File Type: png Snap 2013-01-07 at 15.14.19.png (15.9 KB, 286 views)
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