my tiny class d amp tpa3110

rikvancoolwijk · 1st June 2010, 10:15 PM

Hi I'm new on this forum, reading here for some time now but never posted anything.

I just finished the latest project, not really finished it always is a work in progress.

here is my tiny little class d amp based on a tpa3110, It puts out 2x15W.
DSCN7923.JPG
DSCN7924.JPG
DSCN7925.JPG

Ipanema · 3rd June 2010, 06:35 AM

What is the big board beside the amp?

rikvancoolwijk · 3rd June 2010, 06:52 AM

the big board beside the amp is the power supply, its enough for 2 amps

Ipanema · 3rd June 2010, 08:09 AM

It looks neat. Can you post the design of your PS? Thanks.

rikvancoolwijk · 3rd June 2010, 08:34 AM

Its still on the drawing board I expect to have It completed in a few weeks its now 70w rms stable at 12 or 16v.

Ill post the basic disign when I'm at home!

Ipanema · 3rd June 2010, 08:37 AM

What the PS input? I'm looking for a small AC-DC SMPS module to fit into small cutie box with class D.

rikvancoolwijk · 3rd June 2010, 08:50 AM

input is 220 v ac

Hitec · 3rd June 2010, 08:59 AM

Don't you have any output filters? I don't see any inductors. I know that the PWM can be fed directly to speakers as well but does this work so?

rikvancoolwijk · 3rd June 2010, 09:08 AM

on the underside of the amp you can see some big smd parts that are the output filters, this is all there is neaded!

Hitec · 3rd June 2010, 12:21 PM

Are they ferrites + capacitors? Really nice as it is so compact

1st June 2010, 10:15 PM	#1
rikvancoolwijk diyAudio Member Join Date: Dec 2009 Location: The Hague	my tiny class d amp tpa3110 Hi I'm new on this forum, reading here for some time now but never posted anything. I just finished the latest project, not really finished it always is a work in progress. here is my tiny little class d amp based on a tpa3110, It puts out 2x15W. DSCN7923.JPG DSCN7924.JPG DSCN7925.JPG

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3rd June 2010, 06:35 AM	#2
Ipanema diyAudio Member Join Date: Jun 2004 Location: KL	What is the big board beside the amp?

3rd June 2010, 06:52 AM	#3
rikvancoolwijk diyAudio Member Join Date: Dec 2009 Location: The Hague	the big board beside the amp is the power supply, its enough for 2 amps

3rd June 2010, 08:09 AM	#4
Ipanema diyAudio Member Join Date: Jun 2004 Location: KL	It looks neat. Can you post the design of your PS? Thanks.

3rd June 2010, 08:34 AM	#5
rikvancoolwijk diyAudio Member Join Date: Dec 2009 Location: The Hague	Its still on the drawing board I expect to have It completed in a few weeks its now 70w rms stable at 12 or 16v. Ill post the basic disign when I'm at home!

3rd June 2010, 08:37 AM	#6
Ipanema diyAudio Member Join Date: Jun 2004 Location: KL	What the PS input? I'm looking for a small AC-DC SMPS module to fit into small cutie box with class D.

3rd June 2010, 08:50 AM	#7
rikvancoolwijk diyAudio Member Join Date: Dec 2009 Location: The Hague	input is 220 v ac

3rd June 2010, 08:59 AM	#8
Hitec diyAudio Member Join Date: Jan 2010	Don't you have any output filters? I don't see any inductors. I know that the PWM can be fed directly to speakers as well but does this work so?

3rd June 2010, 09:08 AM	#9
rikvancoolwijk diyAudio Member Join Date: Dec 2009 Location: The Hague	on the underside of the amp you can see some big smd parts that are the output filters, this is all there is neaded!

3rd June 2010, 12:21 PM	#10
Hitec diyAudio Member Join Date: Jan 2010	Are they ferrites + capacitors? Really nice as it is so compact

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