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Class D Switching Power Amplifiers and Power D/A conversion

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Old 13th April 2016, 07:08 AM   #1131
manxman is offline manxman  Isle of Man
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That's about as neat as you can get.
If you like switching technology this must be the target.
This must be a commercial design, who makes it?
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Old 14th April 2016, 02:17 PM   #1132
JonasKarud is offline JonasKarud  Sweden
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I heard so much good of those tiny no name class d amps from Alibaba Express, so I decided to give them a try.

I'm totally blown away with the excellent sound produced by this 16 dollar gadget!

There's a clean attack in the low registers, a very smooth treble and the midrange is very detailed and pleasing to the ear.


I know that amps can be very hard to distinguish from each other, but, to my ears anyway, this one certainly sticks it's nose out.
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Old 14th April 2016, 03:16 PM   #1133
Antoine8082 is offline Antoine8082  France
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Quote:
Originally Posted by Loeitech View Post
2 channel SelfOscillator ClassD PowerAmplifier + SwitchingModePowerSupply

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Link ?
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Old 15th April 2016, 03:27 AM   #1134
Loeitech is offline Loeitech  Thailand
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Originally Posted by Antoine8082 View Post
Link ?
i'm not have link or website. this circuit my hobby. make for simple systems , line arrey speaker etc.
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Old 15th April 2016, 09:42 AM   #1135
amiak is offline amiak  Ukraine
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My first amplifier attempt. This is Rouslan Dimitrov's design based on ATtiny microcontroller. Being a programmer, I was curious about this project because you can write your own soft for this. (You can find some details here.)

pjimage.jpg
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Old 15th April 2016, 08:58 PM   #1136
doctormord is offline doctormord  Germany
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I like it.
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Old 18th April 2016, 12:45 AM   #1137
Bigun is offline Bigun  Canada
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Class D Amp Photo Gallery
Quote:
Originally Posted by Loeitech View Post
i'm not have link or website. this circuit my hobby. make for simple systems , line arrey speaker etc.
Wow! You designed and made this yourself as diy hobby?
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Old 18th April 2016, 03:02 PM   #1138
Loeitech is offline Loeitech  Thailand
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Originally Posted by Bigun View Post
Wow! You designed and made this yourself as diy hobby?
yes sir. i develop > designed PCB > part assembled > tested.
Now I design NewVersion...... dimension 80 * 180 mm.

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Old 18th April 2016, 04:05 PM   #1139
andrewlebon is offline andrewlebon  India
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Hi Kritsanna
greetings very nice pcb design
warm regards
Andrew
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Old 18th April 2016, 05:33 PM   #1140
29285 is offline 29285  Europe
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Sorry to say that this pcb design is dangerous. Primary and secondary circuits are mingled on the board, basic insulation requirements are ignored. Better you never connect this with the mains.
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