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New linear ultra low noise power supply prototype

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New linear ultra low noise power supply prototype
yannig Offline
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#1
07-28-2019, 03:10 PM (This post was last modified: 08-08-2019, 12:47 PM by yannig.)
I just finished a new dual regulated power supply for a Raspberry PI3B+ / Allo Boss combo.


the (very woody) server and his (woody) dedicated power supply.
   

inside the power supply
   


ultra low noise series regulated power supply with LCL filtering and dual coupled bobbins choke for the Raspberry

ultra low noise shunt regulated power supply, with LCLC filtering and dual coupled bobbins chokes for the DAC.

I use MAT0x for differential amplification

And I'm very very happy with the listening ! : much better silence, and much more colors, resolution and softness... 
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CallMeMike Offline
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#2
07-29-2019, 09:49 AM
(07-28-2019, 03:10 PM)yannig Wrote: I just finished a new dual regulated power supply for a Raspberry PI3B+ / Allo Boss combo.


the (very woody) server and his (woody) dedicated power supply.


inside the power supply



ultra low noise series regulated power supply with LCL filtering and dual coupled bobbins choke for the Raspberry

ultra low noise shunt regulated power supply, with LCLC filtering and dual coupled bobbins chokes for the DAC.

I use MAT0x for differential amplification

And I'm very very happy with the listening ! : much better silence, and much more colors, resolution and softness... 

Quite unusual aesthetics (in a good way IMHO)...
Are the black boxes housing the transformer and the bobbins made of metal?
Find
Reply
yannig Offline
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Posts: 142
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Joined: Apr 2018
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#3
08-03-2019, 03:12 PM (This post was last modified: 08-03-2019, 03:19 PM by yannig.)
(07-29-2019, 09:49 AM)CallMeMike Wrote:
(07-28-2019, 03:10 PM)yannig Wrote: I just finished a new dual regulated power supply for a Raspberry PI3B+ / Allo Boss combo.


the (very woody) server and his (woody) dedicated power supply.


inside the power supply



ultra low noise series regulated power supply with LCL filtering and dual coupled bobbins choke for the Raspberry

ultra low noise shunt regulated power supply, with LCLC filtering and dual coupled bobbins chokes for the DAC.

I use MAT0x for differential amplification

And I'm very very happy with the listening ! : much better silence, and much more colors, resolution and softness... 

Quite unusual aesthetics (in a good way IMHO)...
Are the black boxes housing the transformer and the bobbins made of metal?

Thank you very much for your quote !

And yes, black boxes are oven-painted steel cases from my usual winder.
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