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Old 14th January 2010, 05:53 AM   #1
Cristi is offline Cristi  Europe
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Default Linear Power Supplies

Discussions about Linear Power Supplies from Connexelectronic
 
Old 8th March 2010, 11:09 AM   #2
zog666 is offline zog666  Australia
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Default Linear PSU questions

Just reading with interest the descriptions of the Linear Power supplies - but the description for PS10K80, PS18K71E, PS18K71S and PS15K63 appears truncated on my Firefox browser so I can't read it.. is it possible to update these descriptions?

Although the info PDF for the v3 TA3020 modules mentions the PS10K63 should I presume this has been replaced by the PS15K63?

sorry for bombarding your forum with questions, just had a wave of enthusiasm
 
Old 14th May 2010, 04:32 AM   #3
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Quote:
Originally Posted by Cristi View Post
Discussions about Linear Power Supplies from Connexelectronic
Hi Cristi, I just purchased one of your linear PS the 60kuf 80v to replace the stock power supply that came with my (iraudamp) classdaudio amp kit.

I was wondering if you could tell me what the possible benefits of your PS design would be compared to that stock PS which just has the 4700uf caps and a KB10005 10A Bridge rectifier. It would be much appreciated.

thanks!
 
Old 17th May 2010, 05:56 PM   #4
Cristi is offline Cristi  Europe
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the power supply use fast rectifier diodes, rated at 16 or 25A depending on the model, or shottky diodes for the power supply modules which have the output voltage below +-50V. the current capability of the board is larger, so is the total capacity of the capacitors from the board. the total energy stored by them is up to 270 Joules depending on the board. (the 6x18mF board has this total energy).
the amplifier will perform better especially at the low frequencies and can reproduce a more natural sound since the voltage rail will sag less when the amplifier will deliver maximum power.
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Old 17th May 2010, 08:58 PM   #5
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Quote:
Originally Posted by Cristi View Post
the power supply use fast rectifier diodes, rated at 16 or 25A depending on the model, or shottky diodes for the power supply modules which have the output voltage below +-50V. the current capability of the board is larger, so is the total capacity of the capacitors from the board. the total energy stored by them is up to 270 Joules depending on the board. (the 6x18mF board has this total energy).
the amplifier will perform better especially at the low frequencies and can reproduce a more natural sound since the voltage rail will sag less when the amplifier will deliver maximum power.
Thanks. I'm not familiar w/ the brand of caps you use for the PS. I thought I read somewhere you chose them for their very low ESR. Is this accurate?
 
Old 6th June 2010, 03:23 AM   #6
scid714 is offline scid714  United States
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Are those snubber caps on the 6x10000uf/50v psu?
 
Old 6th June 2010, 06:03 PM   #7
Cristi is offline Cristi  Europe
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Here is the schematic of the power supply. most of the components values are same, except the diodes and the capacitors are different from a board to another.
Attached Images
File Type: jpg PS10K80.JPG (55.0 KB, 812 views)
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Old 19th June 2010, 11:09 PM   #8
alkasar is offline alkasar  France
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Hello Cristi,
could you post the size of the linear supplies (length-width-heigh)? I am interested by 4x18000uF/71V+2x18000uF/71V.
thanks.
 
Old 20th June 2010, 05:38 AM   #9
Cristi is offline Cristi  Europe
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The PS10K80 boards are 150x75mm and the PS10K80+100 are 160x80mm.
Attached Images
File Type: jpg PS10K80.JPG (146.8 KB, 639 views)
File Type: jpg PS10K80+100.JPG (155.8 KB, 619 views)
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Old 7th October 2010, 08:50 PM   #10
cOz is offline cOz  United States
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I bought a transfomer that is:

1KVA
Primaries: 115/230V 50/60Hz
Secondaries: 0-16V 1A, 13V-0-13V 1A, x2 40V 12A

What linear supplies would work best with this trafo? Can I hook up two boards? I am pretty new so sorry for such a rookie question.
 

 


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