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>Homemade speakers and audio amplifiers for our animals| | | [How-to] [audio]
enotik500
Message#1
04.04.10, 20:52
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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
Alex_1959
Message#1222
17.11.16, 21:27
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why from 16 v?
Do you have a lot of power supply to the amplifier?
For some reason I realized that 12. Therefore, capacitors suggested the closest of the standard voltage range (6.3-10-16-25 -...) to 16 volts.
And if you have less than 10 volts of power, then there is no power, but you can put a 10-volt conduit.


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Yours faithfully,
Alexey (Alex_StOn other forums)
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Udjplm3230
Message#1223
23.11.16, 10:18
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Kind time of the day, there is an amplifier pam8610, I would like to power it from 5 volts, using step up, but at a sufficiently high volume, basses sag, step up does not have time to give out power, how can you solve this problem?
Alex_1959
Message#1224
23.11.16, 11:38
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Precisely does not hurt, if you put between + and - power a couple of electrolytic capacitors of large capacity (1000-4000 mkF).
Then there may be less grunting at the loudness peaks.


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Yours faithfully,
Alexey (Alex_StOn other forums)
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Udjplm3230
Message#1225
23.11.16, 11:40
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* Alex_1959, put different capacities, ranging from 1000 to 4700, did not help
Alex_1959
Message#1226
23.11.16, 11:51
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datashit on PAM8610read carefully?
There is also black-in English :) it is written that
Recommended Operating Conditions:
Supply Voltage (V) ................... 7V to 15V
And in most reviews (which, by the way,full) say:
Power supply 7 - 15v (recommended 12v 3a)
And what are you trying to achieve at 5 Volts of power? And what kind of output does your step-up give?
If the current is short and you have an adjustable step-up, then raise the power.

Post has been editedAlex_1959 - 23.11.16, 11:52


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Yours faithfully,
Alexey (Alex_StOn other forums)
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Udjplm3230
Message#1227
23.11.16, 12:00
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* Alex_1959, I raised to 12v, the output current to 2a, if powered by bp, then on 12v and 2a it normally sounds
Alex_1959
Message#1228
23.11.16, 12:15
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Well, once the BP sounds normal, and from step-up'a choking on the bass, it means ... Well, you understand, probably? :)
Well, maybe, of course, that the feedback on nutrition and on the ground arises. After all, even at the RAMK itself and 40 conclusions, among which there are different food and land, but on the power board, the Kenets often unite them so that they can not be altered.
Try not only electrolytes, but also ceramic at 1.0 muf to hang on the power and as close as possible to the amplifier board. A ground power and signal is also better than different wires from the board to breed.


--------------------
Yours faithfully,
Alexey (Alex_StOn other forums)
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Udjplm3230
Message#1229
23.11.16, 12:24
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* Alex_1959, I'm using this here
http://s.aliexpress.com/rIv2UfM7
Azathtot
Message#1230
23.11.16, 15:02
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* udjplm3230,
And tell me please, what do you feed DC-DC from? I hope not from a USB port / phone? And then 2A on the output requires at least 2.2 at the input, which, like USB, can not give out.


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From the weakness of the mind, Omnissiah save us!
Udjplm3230
Message#1231
23.11.16, 15:57
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* Azathtot, bn 5c 2a
Azathtot
Message#1232
23.11.16, 16:18
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* udjplm3230,
And at the DC-DC output, what is your current output?


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From the weakness of the mind, Omnissiah save us!
Udjplm3230
Message#1233
23.11.16, 16:21
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* Azathtot, not more than 1a

Post has been editedUdjplm3230 - 23.11.16, 16:21
Alex_1959
Message#1234
23.11.16, 16:54
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not more than 1a
Well, you yourself answered your own question.


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Yours faithfully,
Alexey (Alex_StOn other forums)
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Udjplm3230
Message#1235
23.11.16, 17:02
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* Alex_1959,
consumption of a bag is not more than 1a, even from bp))

Connected to the bp and put the tester, the maximum was 350 mA

Post has been editedUdjplm3230 - 23.11.16, 17:17
Alex_1959
Message#1236
23.11.16, 20:52
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Do your tester measure the peak current values? Well, you're cool! I do not have this, despite more than 40 years of experience in radio murder.


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Yours faithfully,
Alexey (Alex_StOn other forums)
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S.Maximov
Message#1237
26.11.16, 00:29
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* Alex_1959,
consumption of a bag is not more than 1a, even from bp))

Connected to the bp and put the tester, the maximum was 350 mA

Pam8610 in peaks consumes up to 3A, also tried to do that and you and a bunch of other options, but it did not help. As a result, I stopped on the version of 3x18650 and the controller. Everything is compact and powerful (IMHO).


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S.Maksimov
Alex_1959
Message#1238
26.11.16, 19:02
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* S.Maximov,If you are quoting, be more careful, please.
From the quoteIn your postyou might think that it was I who claimed that the RAM consumes up to 1 A: shok:
Then, as I was just about the big consumption in the impulses and talking.

Post has been editedAlex_1959 - 26.11.16, 19:03


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Yours faithfully,
Alexey (Alex_StOn other forums)
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S.Maximov
Message#1239
27.11.16, 23:51
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* Alex_1959,
No one did not want to offend. Henceforth I will be as accurate as possible. If you pull out of context, then maybe you can think so, only to whom it is necessary. After all, everything is clear in the dialogue.

Post has been editedS.Maximov - 27.11.16, 23:54


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S.Maksimov
nicneme123
Message#1240
02.12.16, 15:11
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Guys, how to connect the volume control? There is an amplifier, a regulator (six contacts in one row - I can show the photo) - removed from the not working musical center.

Post has been editednicneme123 - 02.12.16, 15:12


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Google Nexus 5
Alex_1959
Message#1241
02.12.16, 15:16
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Generally, before tearing something out somewhere with a view to later using the people usually looks like it was: D
But generally, everything is standard here: two potentiometers paired on one axis. Each has three contacts. The middle ones are the engines. The right and left are the ends of the hacks.
In details -Google help youThere everything is painted and written


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Yours faithfully,
Alexey (Alex_StOn other forums)
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