5 channels class-T amp Power Supply

niiico · 15th November 2006, 10:00 AM

Hi,

It's not because my AMP4 is not yet fully functional that I shouldn't continue to think about my future design.

I'm planning to build a 5 channels amp and I selected a 500VA 15V transformer for the power supply and at least 69000uF caps (cumulated).

But since my 80VA 15V power supply already blows the 2A slow blow fuses (on 15V side) at inrush, for the 500VA, I want to add a soft start.

I've found a lot of design, but since I can't make PCB, I'd like to find a kit.

What do you think about this one : http://lcaudio.com/index.php?page=12 ? (go down to "Soft Start Circuit")

Will it fit my needs?

xenob · 15th November 2006, 01:13 PM

this one looks pretty good:

http://hifiakademie.de/?id=5.3&si=MT...zEuMTYzLjgxfCA

sorry that its only in german.
But Hubert Reit is really a nice guy, you can mail him.

niiico · 15th November 2006, 01:20 PM

Thank you...

It has functionalities I don't need and it's twice the price... But I'll keep it in mind.

15th November 2006, 10:00 AM	#1
niiico diyAudio Member Join Date: Mar 2006 Location: Earth, France	5 channels class-T amp Power Supply Hi, It's not because my AMP4 is not yet fully functional that I shouldn't continue to think about my future design. I'm planning to build a 5 channels amp and I selected a 500VA 15V transformer for the power supply and at least 69000uF caps (cumulated). But since my 80VA 15V power supply already blows the 2A slow blow fuses (on 15V side) at inrush, for the 500VA, I want to add a soft start. I've found a lot of design, but since I can't make PCB, I'd like to find a kit. What do you think about this one : http://lcaudio.com/index.php?page=12 ? (go down to "Soft Start Circuit") Will it fit my needs?

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15th November 2006, 01:13 PM	#2
xenob diyAudio Member Join Date: Jan 2006 Location: Vienna	this one looks pretty good: http://hifiakademie.de/?id=5.3&si=MT...zEuMTYzLjgxfCA sorry that its only in german. But Hubert Reit is really a nice guy, you can mail him.

15th November 2006, 01:20 PM	#3
niiico diyAudio Member Join Date: Mar 2006 Location: Earth, France	Thank you... It has functionalities I don't need and it's twice the price... But I'll keep it in mind.