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Old 12th October 2007, 12:46 AM   #1
fossil2k is offline fossil2k  Malaysia
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Default Sjöström Super Regulators

What you guys think about this voltage regulator? The schematic I got is a little crappy but that all I can get from this website below. Do you think its worth a try to build it?

http://sjostromaudio.com/joomla/inde...d=27&Itemid=27
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Old 12th October 2007, 05:00 AM   #2
Cauhtemoc is offline Cauhtemoc  Sweden
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Full schematic is can be found here.
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Old 12th October 2007, 08:42 PM   #3
Gordy is offline Gordy  United Kingdom
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fossil2k, the designer of that is peranders on this forum.

Although I have not used his designs, I know of people who have done so with success.
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Old 15th October 2007, 05:55 AM   #4
fossil2k is offline fossil2k  Malaysia
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I'm thinking of building the super regulator to replace those normal LM78 & 79 in my CPD. Now, I have to open up the hood to see if there is enough space to fit in the boards.
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Old 15th October 2007, 05:59 AM   #5
fossil2k is offline fossil2k  Malaysia
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Have you seen other circuits in his website? Does the bridge rectifier make significant different for an amplifier?
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Old 15th October 2007, 10:52 AM   #6
ilimzn is offline ilimzn  Croatia
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Direct paralelling of BJTs and OP-amps? I'm not convinced, sorry.
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Old 15th October 2007, 11:01 AM   #7
jan.didden is offline jan.didden  Europe
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Some info on practical building an ORIGINAL superreg is here:

http://www.linearaudio.nl/Documents/...rf_Audio_3.pdf .

The original design series is here:

http://waltjung.org/PDFs/Regs_for_High_Perf_Audio_1.pdf

Part 2 is also on Walt's site.

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Old 15th October 2007, 02:37 PM   #8
peranders is offline peranders  Sweden
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Quote:
Originally posted by ilimzn
Direct paralelling of BJTs and OP-amps? I'm not convinced, sorry.
This is an option for two types of parts, SO08 or DIL08 opamps and TO126 or TO220 transistors. I normally try to have more than one alternative especially when it comes to essential parts like semiconductors.... so only one type at the time

More to read about the super regulator
http://www.diyaudio.com/forums/showt...threadid=20937

It's quite right that I have got inspiration from Didden/Jung.
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Old 15th October 2007, 02:58 PM   #9
AndrewT is offline AndrewT  Scotland
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Quote:
Originally posted by peranders

This is an option for two types of parts, SO08 or DIL08 opamps and TO126 or TO220 transistors. I normally try to have more than one alternative especially when it comes to essential parts like semiconductors.... so only one type at the time
one PCB for four different packaging options opens up the marketability of the product.
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Old 16th October 2007, 10:51 AM   #10
fossil2k is offline fossil2k  Malaysia
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It is really interesting to try this circuit in my cdp. But I need some advise on the board design. It is good to squeeze all the components into a small PCB or do I just design a PCB in a "normal" size?
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