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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
POM @ 777
Message#82
02.05.09, 19:02
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GREETZKO,
The problem of power almost decided - instead of a phone battery I use a 7.2V battery from a car / car))) There, as I understand it, a bundle of sequentially connected batteries at 1.2V. The size and weight of 4 times more, but will work long - if Take into account the consumption of speakers and the capacity of the power source. At 85 +% loudness wheezes, but it's probably not because of food, but because of the speakers themselves five years ago for 120r: ​​D In general, the quality and volume is fine, I'll buy a column later and remake them.
vic_po
Message#83
08.05.09, 17:03
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Nickel-magnesium batteries do not exist. There are only Ni-Mh Nickel-Metal Hydride. And Ni-Cd is nickel-cadmium. The latest in the output of current are the best of domestic, can give up to 50C (50 containers), that is, Akum for 1 ampere-hour can give a current of 50 amperes, but will work for only about 10 minutes. It can be charged with almost any current (but there is a high probability that Akum will overheat from a large current). At the same time, the capacitance should be divided by the charging current and multiplied by 1.4 (efficiency 60%). Get the number of hours. For example, when charging with a current of 0.1 capacity, you need to charge 14 hours.


Running power through the diode bridge is to lose up to 1.4 volts of supply voltage. So you need to connect the power after the diode bridge.

Post has been editedvic_po - 08.05.09, 17:14


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GREETZKO
Message#84
09.05.09, 13:03
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Vic_po @ 8.5.09, 18:03*
Nickel-magnesium batteries do not exist. There are only Ni-Mh Nickel-Metal Hydride. And Ni-Cd is nickel-cadmium.


Well, I confused one letter ...........)))))))))))))


Thank you for correcting +1


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Storrien
Message#85
23.05.09, 07:26
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Soldered the amplifier on the TDA7050 connected to the dynamics of the computer speakers 4 ohms 3 W, the total - noise and wheeze low frequencies. what could be the problem? Can you need a speaker with other characteristics or some kind of filter?
IiIUma2rmanIiI
Message#86
29.05.09, 19:11
Feel good Inc.
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You are monsters, I do not know how you do it, it's not just a hobby, it's a kind of life, do you even work? Or you can collect the circuit current and disassemble: blink:


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Vityok16
Message#87
29.05.09, 19:28
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Rather, a style of life! I judge by my brother (the eldest), He sticks out all day at home and picks himself up in all sorts of schemes! But he pinches money for repairing all sorts of stuff, but simply do not go into the room without hurting anything !!
RAMANTICS: lol:: lol:: D
Tip_ok
Message#88
30.05.09, 01:42
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MZD @ 29.3.09, 23:38*
Suggest a proven amplifier circuit. In general, we need a system operating from Akum, preferably stereo, the size and mass of a big role does not play, because in the end everything will be molded on a big. The only thing you need is high power and a long time of uninterrupted work. Advise Akum and ways of charging. Thanks in advance.



In general, he himself previously wanted to do so that the dynamo was powered and the battery from it charged ...
Vobsham need akamulyator, which is not a pity (for example a couple of old battery batteries) deshovye kalonki from the campaign (at least) you can hide all this accurately in a handbag for tools such as the amp above (TDA7050) as far as I understand it works from 3 to 9 volts (in any Case should not burn) Of course the sound is not super, but better than without such a device and then to that akamulyatoru can also flashlights navklyuchat ...

Posted on 05/30/2009, 01:42:

Vityok16 @ 29.5.09, 19:28*
Rather a lifestyle !!!

Here at 100% agree: he himself in the trash of friends like to pokapatsya)) and the room is also a mess .. this is a normal state))} -)
POM @ 777
Message#89
31.05.09, 14:27
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IiIUma2rmanIiI @ 29.5.09, 22:11*
You are monsters, I do not know how you do it, it's not just a hobby, it's a kind of life, do you even work? Or the circuit current is collected and disassembled

Personally, I'm not a monster yet, and I'm still at school (between 8th and 9th grade, because on vacation: D) It's just sometimes interesting and useful to do something non-standard.
Tip_ok @ 30.5.09, 4:42*
Vobsham need akamulyator, which is not a pity (for example a couple of old battery batteries) deshovye kalonki from the campaign (at least) you can hide all this accurately in a handbag for tools such as the amp above (TDA7050) as far as I understand it works from 3 to 9 volts (in any Case should not burn) Of course the sound is not super but better than without such a device

I used both the amp and speakers, and the case from the old speakers. The battery was installed in the case of one of the speakers (where the amplifier). Quality is so-so, rock is hard to hear, everything else is normal. Batteries last for a long time. In the picture is an unfinished version.
Posted image


Post has been editedPOM @ 777 - 31.05.09, 14:30
Hundd
Message#90
01.06.09, 18:34
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Tell me how to make sure that the battery does not sit down while playing music.
I want to put a communicator (Samsung i710) in the car. The problem is that the connector is one: both for charging and for the headset. How to solve the problem with the least sacrifice?
drum1k
Message#91
01.06.09, 20:46
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Hundd,
Maybe for your beast there are Y-shaped adapters? The right thing on the farm


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MadKoT
Message#92
08.07.09, 20:15
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Mittiff
Message#93
19.07.09, 02:28
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XMadKoT
I say right away - I use a battery from a drill / screwdriver, but there will be an overheating of the circuit and a minimum of forced (radiator) from the computer. And it seems it is necessary to watch the battery in an animated way so that the battery can not be killed ...
And I'm lazy about my ... The campaign there uses a power supply from the headphones connector ... although xs ...
But I understood, it also shows where the power is supplied from the batteries ...

And the loss on the topic - he did his own for 2030, there were a couple of working options, but they died from overheating of the boards - or from extreme mounting (the legs of the mikra were broken off). But the circuit is good on max (if you need a long distance) it plays quite well , But the bass in the emphasis is audible. Just yuzayu probably one medium-frequency. True, I recently bought a HF speaker. I will experiment with it

Post has been editedMittiff - 19.07.09, 02:34


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I-mate changed to samsung i-8530
kripton
Message#94
30.07.09, 23:11
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Soldered the amplifier on the TDA7050, (monoscheme) for some reason it is very hot, and does not work, when connected from the battery connector (in the body; gsmart-i300) and if soldered to a separate power, it works


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Castigo kampus de meum
kripton
Message#95
01.08.09, 11:04
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Assembled the schemeTDA7050 (mono option), but does not want to work, firstly, with a separate power supply from the animal, everything is super, I connect to the battery, immediately becomes ripen, in the second pancake on gsmart i300, then there is power on both pins !? And will there be a motor-dynamic speaker if it sounds from the native amp?


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Castigo kampus de meum
Marko75
Message#96
02.08.09, 19:13
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And from 12 V the circuit of computer columns will work (in the car)?

Post has been editedMarko75 - 02.08.09, 19:17
POM @ 777
Message#97
03.08.09, 08:36
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Ritmix RMD-1026

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Marko75,
Generally should, but it is necessary to watch what voltage is applied to this circuit.
Kripton,
1. How much power is there? The wheezing begins if there is not enough voltage or current.
2. What is the resistance of the motorola speaker and the speaker I350? If different, then the amplifier can burn
MadKoT
Message#98
05.08.09, 20:37
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Mittif, or maybe from a KAMAZ battery to supply and nitrogen cooling put?

Well, who will tell me about my topic?
Taifunfly
Message#99
06.08.09, 22:46
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MadKoT @ 5.8.09, 22:37*
Well, who will tell

From any battery cell, power supply) or from two or three AA batteries =), you can also connect the contacts to the asus batteries, though it will be faster to discharge.


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10on
Message#100
10.08.09, 14:03
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I read the topic. But then something and nevehal, like men to collect amplifiers. I have a speaker from a Soviet radio receiver, a volume control from there, there is a 2.5mm plug in the PDA. The question is: what details you need to buy in the radio store and how to connect them (in the schemes of the nothar, you can just draw: D).

This post was very interesting to me. You can read more, well, I'm not traveling.

All the wrong collected

Post has been edited10on - 23.08.09, 19:06
MadKoT
Message#101
11.08.09, 09:30
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Guys, I need INSIDE a small animal to shove the amp. And he chooses to eat hard? To me it is simple that for the call louder worked. For music, I have a USB flash drive.

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