DIY Good Class D amplifier

[Sergei Nizovcev]

🙂

 

[stewin]

hi sergei have you tried making that schematic? is it working o.k and can more clear ic like lm311 be used instead of lm311 ?

 

[Sergei Nizovcev]

...

Óñèëèòåëè êëàññà D. - Ñòðàíèöà 214 ...

 

[siriporn109]

IR2153 audio modulated.
The schematic in figure (1) works, but sounds bad.
A single NPN transistor to change the capacitor charging.


Below, I have tried to change, capacitor charging and discharging. Not working.
When the RT pin have the GND potential,
capacitor should be discharged by PNP transistor.
The PNP resistor is drawn wrong, is from collector.

When the potential in B increases, NPN opens and PNP closes,
but in practice it was not so ...

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If you have other ideas please put them.......

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An externally hosted image should be here but it was not working when we last tested it.

<a href="http://www.mx7.com/view2/yyZ93Ld32ewsxS9R" target="_blank"><img border="0" src="http://www.mx7.com/t/d8d/RCAiKP.png" /></a>

 

[ljm_ljm]

The oven manufacturers, later changed to audio power amplifier manufacturers.
In fact in China 20 years ago, there was a man who use TL494 digital power amplifier design.

But no one likes.

 

[andrewlebon]

TL494 CLASS D AMPLIFIER

class d ¶Ù¡Ï(à¾×èÍ¡ÒÃÈÖ¡ÉÒ)
TRY this simple dclass amp it works

 

[Vahrezyvalm]

No others reviews here.
Hi Sergei Nizovcev,how about your D amp now,has you tried it? seem its a gdt D amp version,I'm interested to try it too.

 

[stewin]

hi all

 

[NWS]

hi
i need to make 400w on 4R class d amp with 494.
is everyone made it?
how is this quality

 

[driigo21]

Alguem conseguiu montar com SG3525 + IR2110 ???

Tem video do funcionamento ?

 

[Mooly]

English only please.

 

[Jorge10]

esse amplificador fuciona
obrigado