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stepheno 23rd November 2007 10:36 AM

Class D Delta-Sigma Amplifier
2 Attachment(s)
For those who are interested, here is my latest Class D Delta-Sigma Amplifier.
There is a German Audio magazine with design projects which is published monthly - can someone tell me what the name of the magazine is and/or direct me to their web site?
Thank you.

alfsch 23rd November 2007 10:57 AM

looks very nice :)

can you show the circuit?

+ which audio magazine? speaker-related or electronics or ? (there are many..)

Workhorse 23rd November 2007 12:42 PM

Where is the schematic.....??

Tekko 23rd November 2007 02:23 PM

Is it clocked or self oscillating ?

stepheno 25th November 2007 05:31 AM

Hello Tekko,
It is self-oscillating at approx. 400kHz.
Unfortunately I am not showing any circuits now.

peranders 25th November 2007 07:35 AM

Looks real nice :up: and I'm sure not only I am interested to hear more about your project.

nilsomat 25th November 2007 09:11 AM

Are you referring to:


stepheno 26th November 2007 10:29 AM

Hello Nilsomat,
Thank you for your reply. No, it is not Elektor, something more like the American magazine AudioXpress. I believe it is one of the best magazines with practical audio projects. They also have a companion German magazine on practical loudspeaker projects.

Rembrandt 26th November 2007 03:35 PM

this one maybe?

nilsomat 26th November 2007 03:44 PM

There are two big magazines for diy loudspeakeakers : Klang und Ton (see above) and

I checked the homepages briefly, but didn't really find something...

Good Luck

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