KA30se "KRYPTON" SE class A amplifier

bogdan_borko · 26th September 2007, 05:24 PM

This is the finall version of the amplifier I`ve been working on lately. It is a class A amplifier single ended with impemented "aleph ccs".

30W on 4Ohm load
Open loop distortion @ 1W/4Ohm = 0.03
Open loop bandwidth 48KHz (-3dB)
CL distortion @ 95% power = 0.08%
CL bandwidth 480KHz

bogdan_borko · 26th September 2007, 05:26 PM

ps regulator

bogdan_borko · 26th September 2007, 05:28 PM

pcb

bogdan_borko · 26th September 2007, 05:36 PM

What I`d like to ask is it comensated right and is there any specific type of compensation i should try?

BTW the sound is VERY good and precise nothing like the classic SE amplifiers..

Thanks in advance, Borko.

gni · 26th September 2007, 11:04 PM

Quote:

Originally posted by bogdan_borko
What I`d like to ask is it comensated right and is there any specific type of compensation i should try?

There are many knowledgeable people on the DIY audio forum; maybe
you should be more specific about 'comensated'.

bogdan_borko · 29th September 2007, 07:40 PM

twins:

bogdan_borko · 29th September 2007, 07:43 PM

This is the schematic update:

The feedback is now decresed to 35dB and the sound is beautiful!

bogdan_borko · 29th September 2007, 07:45 PM

backside:

hihopes · 29th September 2007, 08:47 PM

Seems very nice Bogdan, but the schematics are not very clear (at least not on my computer).

yoke · 29th September 2007, 08:57 PM

it's clear on my...:-)

when you open it in another window, you can point on it and wait a sec, then klick on ''expend to regular size'' (try to remove pointer from pic and then move it back)

at least thats how it work on my PC ;-)

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26th September 2007, 05:36 PM	#4
bogdan_borko diyAudio Member Join Date: Nov 2005 Location: serbia, zajecar	What I`d like to ask is it comensated right and is there any specific type of compensation i should try? BTW the sound is VERY good and precise nothing like the classic SE amplifiers.. Thanks in advance, Borko.

29th September 2007, 08:47 PM	#9
hihopes diyAudio Member Join Date: Sep 2004 Location: Cape Town	Seems very nice Bogdan, but the schematics are not very clear (at least not on my computer).

29th September 2007, 08:57 PM	#10
yoke diyAudio Member Join Date: Jan 2004 Location: Split	it's clear on my...:-) when you open it in another window, you can point on it and wait a sec, then klick on ''expend to regular size'' (try to remove pointer from pic and then move it back) at least thats how it work on my PC ;-)

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