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>Homemade speakers and audio amplifiers for our animals| | | [How-to] [audio]
enotik500
Message#1
04.04.10, 20:52
Tehnohelp. Yet one of
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Samsung Galaxy S 2 SGH-T989

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Homemade speakers and audio amplifiers for our animals
Collect questions for writing ACF ever do you have when working with ICs TDA2822 and tda7050, assembly amplifiers to them, operation, and all you wanted to ask, but did not dare

Questions or post in this thread or in PM!
Thanks in advance for your understanding and your participation! : Thank_you:
ACF is already written!I am waiting for your photos Collection Amplifier for accommodation in FAQ,.
For questions you are welcome here, either in the facts!
: W3bsit3-dns.com:
FAQ on the creation of an amplifier for our devices

Post has been editedHanzo - 03.10.10, 09:43
Vityok16
Message#42
06.02.09, 13:00
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LeEco Le 2 x527

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Not, in the CCP, such a perversion nefig put (if you really need to buy a Sony Ericsson with a box and do not invent a "wheel") and for what 3 wahs are still small! It's better to assemble the remote amplifier (on 12v) I have assembled One such but he is not in any way pocket-sized, the size of a car first-aid kit and AKB on 7A / h but 2x35vt! (In nature or in the country when there is no light at all)
GREETZKO
Message#43
06.02.09, 20:23
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Asus P535

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Well and how much output power on the phone 0.1-0.2W max 0.3

I went to the radio store and saw three wadded speakers. Damn, they are healthy. , If only 0.3W out of the phone, then it fundamentally changes the case ..... Thanks for the clarification.


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Accident is not a known pattern ...!
GREETZKO
Message#44
06.02.09, 21:16
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Date: 22.10.08
Asus P535

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Comrades, explain I'm sorry. Where are the contacts located: 1,2,3,4,5,6,7,8?

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Accident is not a known pattern ...!
cooler.nvkz
Message#45
09.02.09, 06:03
PSx-Maniac
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Asus ZenFone 5

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Concerning the photo:
8-7-6-5
1-2-3-4


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GREETZKO
Message#46
09.02.09, 11:32
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Asus P535

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Interestingly, why at such installation m \ s warmed up and play unwillingly? (Twice perepaeval)

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Accident is not a known pattern ...!
GREETZKO
Message#47
09.02.09, 11:52
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Asus P535

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Thank you all for your cooperation! The result is achieved. This little amp pulls not weakly two speakers. The money left for the details of 45 rubles. Dimensions: length 1.8 cm, width 1.5 cm and thickness 0.5 cm. Akb kpk does not strongly compress. (On this account, I will still test)))))))) Vobschem This thing!

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Post has been editedGREETZKO - 09.02.09, 11:58


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Accident is not a known pattern ...!
cooler.nvkz
Message#48
09.02.09, 16:59
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I think this device is better to shove in the column itself + 2 finger batteries / batteries + voltage regulator (to suck out all of the batteries) .... and perform everything in the style of the fastening module to the PDA / communicator or the bag with the speakers (formerly such for CD -Players sold) .... but that's to ruin the device itself .....: shok:


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GREETZKO
Message#49
10.02.09, 07:48
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Asus P535

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'Cooler.nvkz'
Destroy the device .......? Choose degeneration! :))))))) , this is pure water upgrade !!!!!!! The fact is that this is not the first device I got in my hands. For the coming, I made the aluminum body out. Inside the ep. Resin instead of plastic. But I want to put a powerful Akum in it and make a stereo sound. It is necessary to scratch the back panel of epoxy from scratch and to pick up colors.

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Accident is not a known pattern ...!
GREETZKO
Message#50
12.02.09, 12:18
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Asus P535

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GREETZKO @ 9.2.2009, 11:32*
Interestingly, why at such installation m \ s warmed up and play unwillingly? (Twice perepaeval)


Please excuse me for the crooked hands ...... The scheme assembled in this way works just potresayusche !! External samsungovskiy speaker areth as cut and choked with output power. The sound comes through chur loud. Even the Nokia 3250 did not stand side by side. Finally, there is an occasion to stop searching for a small amp. Its dimensions are even smaller, since it is not necessary to use two capacitors. Cool ! Only four parts.

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Post has been editedGREETZKO - 12.02.09, 12:31


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Accident is not a known pattern ...!
cooler.nvkz
Message#51
12.02.09, 12:43
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But exactly drowns the speaker and not the amp?
Comparing the circuit, I see that in the last version the filter was removed from the input ... more precisely the input current limitation ....
And even more interesting is just how the speaker is connected to the two pluses? How does one phase change from one channel to another?
PS: went Google dasashit to this mikruhu ... in half an hour myself on everything and I will answer :-D or more accurately I will answer as the forum will work ...

But where do you get the signal for the amplifier? Solder on mikruhu somewhere inside the device? Or just what went to the speaker through the limiting filter? Or headphone output?

update:
All about the connection figured out ... :)
1 - plus of the first channel
2 - minus the second channel
See the speaker do not tear this power;)


About where he took the signal - in force ...

Post has been editedcooler.nvkz - 12.02.09, 13:33


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GREETZKO
Message#52
14.02.09, 08:17
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Asus P535

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'Cooler.nvkz'

Right now I'm taking it from the headphones. But when installing in the device you have to take the sound from the output to the speaker. Naturally limiting it. But to suck on the board, where the sound is not yet up to the native amp, I would love to. Only here is where to get the detailed scheme?


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Accident is not a known pattern ...!
cooler.nvkz
Message#53
15.02.09, 13:46
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Asus ZenFone 5

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And this in theory is very simple to calculate and without a scheme .... Look where the wires come from the speaker (a small mikruha) and look for it on it in the internet .... I'm more than confident that there is something like what you've collected. .. only much smaller ....

Posted on 02/15/2009, 13:46:

The only problem is to find out where the tracks go .... the boards usually make multilayered tracks and the tracks that go inside the board are very difficult to track :(


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GREETZKO
Message#54
15.02.09, 19:27
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Asus P535

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'Cooler.nvkz'

In this then the whole thing ......... It is necessary to search for the scheme of the sound path extraction in the Internet. Without a scheme and proper education, I will have to bathe for a week in search of an exit.


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Accident is not a known pattern ...!
Sam-034
Message#55
15.02.09, 20:06
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HP iPAQ hx2490

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Anyone can explain to the kettle what else is needed besides the chip to make such an amplifier? And if you can explain in detail what to connect to, and then I do not understand at all these schemes: rofl:















P.S. Modern do not delete this message
cooler.nvkz
Message#56
15.02.09, 21:25
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GREETZKO,
So the whole problem is to find a chip-amplifier ... and how it's arranged - in the datashit everything is told in detail;)
You can even stupidly look in the internet in turn describing the chips that on the board and find the right one ... but this is the longest way ...


Sam-034,
necessary:
1. chip (it's a microchip, it's a bass amplifier)
2. All that is around the chip (capacitors, resistors - number and denomination see in the diagram)
3. speaker (1-2 pieces - depending on what circuit you will collect)
4. wires (the number depends on where you put all this and how)
5. soldering iron, rosin, tin ... in general, everything to solder ..
6. The last and most important thing is the driver "DIRECT_RUK.SYS" ....
Shl: if you do not understand - it's easier to buy the finished one and not suffer ... and if you put into the case like it does GREETZKO - then I think to ask here is inappropriate ... most likely the result will be a ruined device ....

The other day I saw portable speakers here ... complete with some kind of model go ... they play fucking for this size ... on three batteries is working ... there is a similar one for sonyikikson (just like without the built-in amplifier) ​​... But both these toys are bundled with phones ... :(


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PS3 SuperSlim 500GbOfficial FW
Sam-034
Message#57
15.02.09, 22:00
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I have a question about this schemePictureWhat are the contacts connected to 1.4.8 and where are the second speaker contacts going?
cooler.nvkz
Message#58
16.02.09, 05:24
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Asus ZenFone 5

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Hmm .... what's in the "stick" rests - it's land (minus the batteries) .... then what + Vcc - it's plus batteries ...
PS: take any textbook on electrical engineering and read at your leisure ...;)


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GREETZKO
Message#59
16.02.09, 08:56
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Asus P535

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'Sam-034'


Are you sure that you will succeed ....?
Even a small experience is not given easily .......... :)

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Accident is not a known pattern ...!
GREETZKO
Message#60
16.02.09, 09:05
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Date: 22.10.08
Asus P535

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'Cooler.nvkz'
In the date shta goaorish ..............., And how to luchshe register in Google? :)
Yesterday all the search engines tormented, but the circuit board asus p535 and not nashol.


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Accident is not a known pattern ...!
cooler.nvkz
Message#61
16.02.09, 11:47
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Asus ZenFone 5

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GREETZKO,
Let's say you look at mikruhu what thread - and from it you enter ....
For example look for "TDA7050 datasheet" .... you will find a bunch of PDF'ok ... and in them you will already find a typical scheme of switching on ...
If you can not find anything on a particular mikruha - then drop it, it's probably not her ...

ZY: zachotnaya kuchkaya ubienntsov: lol:


--------------------
PSP Slim & Lite 2001
PS3 Slim 320GbCustom FW
PS3 SuperSlim 500GbOfficial FW

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