Cheap simple class D amp circuit to build.

guitar_joe · 18th May 2007, 02:33 PM

Can somebody please post me a link to a dead simple class D amp that could be built on a bread board.

I just want to build one to see how they work for educational purposes.

Any leads on this would be fantastic

cheers

BWRX · 18th May 2007, 02:55 PM

A fully discrete circuit or one based around a chip?

guitar_joe · 18th May 2007, 02:59 PM

i think fully descrete would be the best way to go
I know it's not good for performance but it's
mainly for educational purposes

BWRX · 18th May 2007, 03:32 PM

Fortunately you can have both

Philips UCD application note

guitar_joe · 19th May 2007, 08:31 AM

cool. cheers

alfsch · 19th May 2007, 10:39 AM

look, my cheap-d :
http://sodfa.so.ohost.de/content/ima...MK1-1b.sch.pdf

v-bro · 20th May 2007, 08:03 PM

Not discrete, but I've seen people build 41hz.com AMP6 on a breadboard...

It is pretty cheap...

luka · 21st May 2007, 06:57 AM

Hi alfsch

How does your circuit work?

alfsch · 21st May 2007, 08:06 AM

its a simple selfosz. amp, "ucd" style...
here test with 5khz,1w ,8 ohm:

luka · 22nd May 2007, 11:08 AM

Hi alfsch

Could you post some waveforms of the amp. Like output with no signal,... any

18th May 2007, 02:33 PM	#1
guitar_joe diyAudio Member Join Date: May 2007	Cheap simple class D amp circuit to build. Can somebody please post me a link to a dead simple class D amp that could be built on a bread board. I just want to build one to see how they work for educational purposes. Any leads on this would be fantastic cheers

18th May 2007, 02:55 PM	#2
BWRX diyAudio Moderator Emeritus Join Date: Jan 2005 Location: Pennsylvania	A fully discrete circuit or one based around a chip? __________________ Brian

18th May 2007, 03:32 PM	#4
BWRX diyAudio Moderator Emeritus Join Date: Jan 2005 Location: Pennsylvania	Fortunately you can have both Philips UCD application note __________________ Brian

20th May 2007, 08:03 PM	#7
v-bro diyAudio Member Join Date: May 2006	Not discrete, but I've seen people build 41hz.com AMP6 on a breadboard... It is pretty cheap... __________________ Max. cone displacement can be several foot on any speaker!Too bad it can be done only once......

21st May 2007, 06:57 AM	#8
luka diyAudio Member Join Date: Sep 2005 Location: in Slovenia :)	Hi alfsch How does your circuit work? __________________ home page @ http://www.classdaudio.tk/ @ 24/7 all year long I FEEL SLOVENIA


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18th May 2007, 02:59 PM	#3
guitar_joe diyAudio Member Join Date: May 2007	i think fully descrete would be the best way to go I know it's not good for performance but it's mainly for educational purposes

19th May 2007, 08:31 AM	#5
guitar_joe diyAudio Member Join Date: May 2007	cool. cheers

19th May 2007, 10:39 AM	#6
alfsch diyAudio Member Join Date: Jan 2002 Location: augsburg	look, my cheap-d : http://sodfa.so.ohost.de/content/ima...MK1-1b.sch.pdf

22nd May 2007, 11:08 AM	#10
luka diyAudio Member Join Date: Sep 2005 Location: in Slovenia :)	Hi alfsch Could you post some waveforms of the amp. Like output with no signal,... any __________________ home page @ http://www.classdaudio.tk/ @ 24/7 all year long I FEEL SLOVENIA

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