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Old 23rd December 2005, 07:23 AM   #21
Electrons are yellow and more is better!
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What was the positive properties if you bear in mind that you don't have a grounded chassis?

Besides my thing was only the regulator.
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Old 23rd December 2005, 12:25 PM   #22
tenor39 is offline tenor39  United States
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You star ground the raw supply at its output, the Regulators and the audio circuit. The + or - leg becomes the output ground depending on which polarity you want. I've noticed an improvement in low level detail and "air" when I get rid of RF anywhere in a PS design. Galo and Jan Didden use this setup for the raw supply of any Super Reg they build.
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Old 23rd December 2005, 02:02 PM   #23
boxedin is offline boxedin  Canada
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Hi P-A,

I will buy variable regulated power supply for 50v , 20A rating. Can you make it modular ? So we can even make Lab style power supply with it?.

My first application for Pure CLASS A amplifier.

Thanks,
Alexk
toronto
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Old 23rd December 2005, 02:32 PM   #24
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After that i suggest you use your amplifier for welding.
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Old 23rd December 2005, 04:10 PM   #25
Raj1 is offline Raj1  United Kingdom
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jacco that would be cool, all of us making amps that can weld, we could do group buys on audiophile crocodile clips, and super visors........
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Old 24th December 2005, 05:56 AM   #26
Electrons are yellow and more is better!
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Quote:
Originally posted by boxedin
I will buy variable regulated power supply for 50v , 20A rating. Can you make it modular ? So we can even make Lab style power supply with it?.
First: 20 A and 50 volts, have you thought this over? What kind of amp is this and what kind of load do you have?

This regulator will not be particulary well suited for lab power supply. You have quite different demands and ultra low noise and ultra high speed is massive overkill.
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Old 18th January 2006, 06:37 AM   #27
Electrons are yellow and more is better!
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Some time has gone now and from what I can gather the interest isn't very big but nevertheless I think it's interesting as a challenge.

(I'm really puzzled by 20 A 50 V class A How does such an amp look like?)
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Old 18th January 2006, 07:26 AM   #28
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Quote:
Originally posted by peranders
How does such an amp look like?)
Big ?
I'm trying to get 500 to 600 watts out of the Krell Clones, and it is getting bigger and bigger.
Can only try to imagine how 2000 watts will be like.

Surprised too that there has not been much more response, i've read many post their wish for something that would be covered by your proposal, Per Anders.
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Old 18th January 2006, 12:38 PM   #29
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Quote:
Originally posted by peranders
(I'm really puzzled by 20 A 50 V class A How does such an amp look like?)
This will come close to doing it:

Click the image to open in full size.
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Old 18th January 2006, 01:13 PM   #30
Electrons are yellow and more is better!
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A multipurpose device, amp + heat source (nice in the winter) .... what is it?
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