Super Regulators
Printed From: Graham Slee Hifi System Components
Category: DIY AUDIO
Forum Name: Free Audio Designs and Info
Forum Description: Graham shows his competitors how to design and gives you some great projects to build
URL: https://www.hifisystemcomponents.com/forum/forum_posts.asp?TID=4632
Printed Date: 24 Apr 2024 at 1:47pm
Software Version: Web Wiz Forums 12.01 - http://www.webwizforums.com
Topic: Super Regulators
Posted By: D3savage
Subject: Super Regulators
Date Posted: 04 Jan 2019 at 3:02pm
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Hi Graham.......... Take a look at Belleson super regulators they appear very very impressive ........ there is a youtube demo ...here https://www.youtube.com/watch?v=P4vsf-awHgM - https://www.youtube.com/watch?v=P4vsf-awHgM ; Allot of enthusiasts with good electrical knowledge are reporting excellent results ....... along the lines of the Naim descrete regulator improvements........ i wonder what this do to your already excellent products..................... Happy New Year Richard (I have no association with Belleson)
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Replies:
Posted By: Graham Slee
Date Posted: 04 Jan 2019 at 4:14pm
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Very expensive aren't they? Possibly they will improve on a discrete regulator in some applications (as seems to be inferred). Usually a 78XX regulator is quite good on noise. It would not be the noise I'd be worried about but the high frequency stability, which all regulator manufacturers conveniently ignore. All use an op-amp (this is no different), and op-amps do some weird things at very high frequencies. Those frequencies get superimposed on the amplifier stage's signal, and can change the character of the sound. This makes a difference, but a difference isn't always an improvement. A notable improvement to most voltage regulators can be made by adding a small value resistor in series with the output, which can (and sometimes does) get rid of instability. If voltage accuracy is not so important this is a much cheaper way to an improvement. ------------- That none should be able to buy or sell without a smartphone and the knowledge in how to use apps |
Posted By: peterb
Date Posted: 04 Jan 2019 at 5:22pm
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This recently released regulator seems a good/economical step forward, albeit in SMD form. http://www.analog.com/en/products/lt3094.html?8110&ADICID=EMAL_WW_P44152_MIX-NL-PN_453&elqTrackId=2f94535cf24d4b11a5a37ecd46cf2279&elq=d2ccba6f43ef44bba9bb631b5ea7c28e&elqaid=8110&elqat=1&elqCampaignId=4685#product-overview - https://www.analog.com/en/products/lt3094.html?8110&ADICID=EMAL_WW_P44152_MIX-NL-PN_453&elqTrackId=2f94535cf24d4b11a5a37ecd46cf2279&elq=d2ccba6f43ef44bba9bb631b5ea7c28e&elqaid=8110&elqat=1&elqCampaignId=4685#product-overview So far I have only seen a negative voltage version from them.
------------- Peter --------------------------------------- Dual 505-1, Cyrus CD T, DIY 80W MosFet amp and PreAmp, 2xKEF 103.2 |
Posted By: Graham Slee
Date Posted: 04 Jan 2019 at 5:50pm
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This topic really ought to be in the DIY section. ------------- That none should be able to buy or sell without a smartphone and the knowledge in how to use apps |
Posted By: peterb
Date Posted: 04 Jan 2019 at 6:55pm
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For me, please do Graham. ------------- Peter --------------------------------------- Dual 505-1, Cyrus CD T, DIY 80W MosFet amp and PreAmp, 2xKEF 103.2 |
Posted By: Graham Slee
Date Posted: 04 Jan 2019 at 8:29pm
It appears a mod has moved it for me. Thanks!  ------------- That none should be able to buy or sell without a smartphone and the knowledge in how to use apps |
Posted By: Chris Firth
Date Posted: 04 Jan 2019 at 9:12pm
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Posted By: Graham Slee
Date Posted: 05 Jan 2019 at 4:28am
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This is how they used to do it...  Point A is the necessarily low noise supply to a tape head preamp.
------------- That none should be able to buy or sell without a smartphone and the knowledge in how to use apps |
Posted By: Graham Slee
Date Posted: 05 Jan 2019 at 7:09pm
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The "super regulator" patent can be viewed here: http://pdfpiw.uspto.gov/.piw?PageNum=0&docid=08294440&IDKey=1F490EA9D3D6&HomeUrl=http%3A%2F%2Fpatft.uspto.gov%2Fnetacgi%2Fnph-Parser%3FSect1%3DPTO1%2526Sect2%3DHITOFF%2526d%3DPALL%2526p%3D1%2526u%3D%25252Fnetahtml%25252FPTO%25252Fsrchnum.htm%2526r%3D1%2526f%3DG%2526l%3D50%2526s1%3D8%2C294%2C440.PN.%2526OS%3DPN%2F8%2C294%2C440%2526RS%3DPN%2F8%2C294%2C440 - http://pdfpiw.uspto.gov/.piw?PageNum=0&docid=08294440&IDKey=1F490EA9D3D6&HomeUrl=http%3A%2F%2Fpatft.uspto.gov%2Fnetacgi%2Fnph-Parser%3FSect1%3DPTO1%2526Sect2%3DHITOFF%2526d%3DPALL%2526p%3D1%2526u%3D%25252Fnetahtml%25252FPTO%25252Fsrchnum.htm%2526r%3D1%2526f%3DG%2526l%3D50%2526s1%3D8%2C294%2C440.PN.%2526OS%3DPN%2F8%2C294%2C440%2526RS%3DPN%2F8%2C294%2C440 It seems to differ in that the series transistor base control voltage is by FET. ------------- That none should be able to buy or sell without a smartphone and the knowledge in how to use apps |