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Class D Switching Power Amplifiers and Power D/A conversion

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Old 30th June 2010, 12:45 PM   #131
opor is offline opor  Thailand
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Yes, Andrewlebon.
Your IC is look strange. Ty new one.
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Old 30th June 2010, 03:06 PM   #132
luka is offline luka  Slovenia
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Looks fine to me, I got 3 or 4 that are pretty much the same

Click the image to open in full size.
And they look something like that

PS: No most of them are like that
PS2: 2 of them are like on the picture, 3 of them are totaly 100% like he has, and two of them are in smps and Damp now and working
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Last edited by luka; 30th June 2010 at 03:14 PM.
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Old 3rd July 2010, 10:37 AM   #133
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hello friends! At once,Sorry for my English please! I'm from Ukraine
I want to make this amplifier and the first questions is: Is this scheme worker?

In the last my amplifier was lm311+lm2104+bc 807+IRFB52N15D,conservatively of course.

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Old 4th July 2010, 07:54 AM   #134
Baldin is offline Baldin  Denmark
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What is LM2104?
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Old 4th July 2010, 08:14 AM   #135
savu is offline savu  Romania
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Maybe an opamp.
I am sure that it is a spelling error
regadrs,

savu
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Old 4th July 2010, 09:22 AM   #136
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[QUOTE][
What is LM2104?
/QUOTE]
sorry, it's IR2104
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Old 9th July 2010, 05:13 PM   #137
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hi d class diyers
greetings any voltage test points voltage on ic pins will be very
helpful output has 69 volts dc any hints
thanking you
andrew lebon
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Old 19th July 2010, 01:33 PM   #138
lycanlk is offline lycanlk  Sri Lanka
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Wink Hi everyone..

After long time I came to the forum and searched for a class D amp. I saw this thread in an accident and luckily. I have never tried a class D amp so far because of the complexity.. I'm really amazed by the design and really glad to hear that it works..

I dont care THD values and any other comparison of this with other amplifiers. because if you care of those, you better try there are many appreciated amps here. But I enjoy the simplicity, output power and the efficiency with this. I'll be really happy if I could get powered my woofers with this )

My plan is to drive a subwoofer from this with a low pass filter. mid and highs form another amp.

Thank you all for running this thread with helpful stuff.. Pro engineers please look at this and tweak it with the minimum complexity. your work will be appreciated. because DIY should to be simple otherwise it has to be "do it by others".. lol.. just a joke )

regards,
Lycanlk
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Old 19th July 2010, 01:51 PM   #139
luka is offline luka  Slovenia
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what? last guy said it doesn't. Do you really want to find that for yourself too?
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Old 19th July 2010, 01:53 PM   #140
savu is offline savu  Romania
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It doesn't what ?

regards,
savu silviu
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