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Class D Switching Power Amplifiers and Power D/A conversion

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Old 8th July 2014, 02:55 PM   #1
pantoro is offline pantoro  Italy
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Default Best Diy Class D amplifier

Hi to everybody i am a new user and my name is Fabio.
excuse me is my English is not the best.
I have read some interesting discussions on this forum but i haven't found what i am looking for so i hope someone can help me.
what is the best schematics for a d ampli ? (ampli and psu)
I have experience with electronic
thank you for pacience and help
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Old 8th July 2014, 06:05 PM   #2
Bare is offline Bare  Canada
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Join Date: Dec 2001
Location: vancouver
Unless physical size (very small) is a basic requirement?
I would suggest the Nelson Pass Amp Camp Amp kit. Find it in the diyaudio 'store' section either 130$ sans cases but with twin Supplies included, or 260$ with cases. (when available, it's a fast seller)
You will be unlikely to find a better sounding Amp.. pretty well anywhere. IMO.

Last edited by Bare; 8th July 2014 at 06:07 PM.
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Old 8th July 2014, 06:16 PM   #3
xrk971 is offline xrk971  United States
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Location: Metro DC area
The Amp Camp Amp (ACA) is class A at 5 watts power. Unless you have very sensitive speakers, that may not fit the bill. A great amp though if class A is what you are looking for. OP asked for class D amp schematic. You can order all the parts yourself for the ACA for about $40 not including heat sink and case. A very inexpensive way to get into a legendary class A Nelson Pass design.

My vote is for the DUG TPA3116D2 in PBTL (100 watts into 2 ohms mono) so you need two for stereo.
GB for TPA3116/8 PBTL bare pcb

If you want to get an idea of what this amp is capable of, get a premade one for $20 - look in this thread:TPA3116D2 Amp

Then mod it or make it from scratch, or make it with your own choice of components per the DUG PCB.

Last edited by xrk971; 8th July 2014 at 06:18 PM.
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Old 8th July 2014, 06:47 PM   #4
pantoro is offline pantoro  Italy
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Join Date: Jul 2014
thank you a lot
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