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Old 28th November 2006, 09:40 AM   #1
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Unhappy Amplif mono with 4 x TDA 2030

Hi.

I need a schematic for my subwoofer amplifier (mono)
I have : +/- 17 V @ 5A and 4 amplifiers with tda2030a made by me OK, after datasheet (simetric power supply)
I want to build an amplifier with 4x TDA 2030a mono using those 4 amp to reach at let's say 50 W, at 4 or 8 ohm ,doesn't matter.
I know i can make it in configuration bridge-parallel, but i need a schematic, because i don't know if there are any modifications.

Can you help me, please ?

I'm from Romania, excuse my english.
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Old 24th September 2007, 09:10 AM   #2
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Default TDA 2030A 18 watt power Amp

Hi dsasorin,

You can easily use split supply schematic of TDA 2030a easy to built .

MAke sure the power supply have sufficient filter atleast 4700uf 50v (split power supply)

and each section of the circuits (each ic) power pins must be grounded by 0.uf 100v and in paraller 1000uf 25v

See the attached figure

if you have any problem you can email me

Ali
Attached Images
File Type: jpg split supply schematic.jpg (35.4 KB, 636 views)
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Old 24th September 2007, 10:59 AM   #3
m-tech is offline m-tech  Serbia
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Location: Belgrade
Search for BPA-200 ( bridge/parallel amplifier documentation ) from National Semiconductor.
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Old 24th September 2007, 11:07 AM   #4
Nordic is offline Nordic  South Africa
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Do these sound any good?

I saw RS components have the TDA2030 PCB development board... I guess it is just the datasheet schematic... price is about $2.
stock no 434-576

Click the image to open in full size.
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Old 26th September 2007, 06:34 AM   #5
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Hi Nordic,

It will be great if you can post a little bit more clear pic of the PCB if you have.
thanks


Quote:
Originally posted by Nordic
Do these sound any good?

I saw RS components have the TDA2030 PCB development board... I guess it is just the datasheet schematic... price is about $2.
stock no 434-576

Click the image to open in full size.
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Old 26th September 2007, 06:51 AM   #6
Nordic is offline Nordic  South Africa
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Wish I could help but this picture is from RS components website.

http://www.rsromania.com/
cost EUR1.86

Is this for a PC speaker subwoofer that you want an amp?
Those chips don't seem to put out much power... looking at datasheet.

On 14V@4ohm guaranteed power only 12W, and 14V@8ohm only 8W.
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Old 26th September 2007, 09:42 AM   #7
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They Deliver 18 Watt up to 20 watts,
30-36Volts DC 4 ampere's power supply

very low distortion but very sensitive IC's oscillation problems occur if cisrcuit not built properly

Even Altec Lansing in one of its Product (see pic attached) use a lower version of this ic which is TDA2030 10-watt power output, for its Sub woofer

if you compare TDA 2030A its quite powerful and good output

if you go higher TDA2040A you can get up to 30Watts





Quote:
Originally posted by Nordic
Wish I could help but this picture is from RS components website.

http://www.rsromania.com/
cost EUR1.86

Is this for a PC speaker subwoofer that you want an amp?
Those chips don't seem to put out much power... looking at datasheet.

On 14V@4ohm guaranteed power only 12W, and 14V@8ohm only 8W.
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Old 26th September 2007, 09:42 AM   #8
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The TDA2040 provides 22W output
power (d = 0.5%) at Vs = 32V/4W .
TDA2040 provides high output current and has very low
harmonic and cross-over distortion.


While

The TDA 2050 provide up to 35W power into 4 ohm load @ THD =
10%, VS = 18V, f = 1KHz and up to 32W into
8ohm load @ THD = 10%, VS = 22V, f = 1KHz.

Moreover, the TDA 2050 delivers typically 50W
music power into 4 ohm load

I love these Pentawatt packages coz of their small size and easy to build circuits.
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File Type: jpg tda2040a.jpg (20.1 KB, 446 views)
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Old 26th September 2007, 09:42 AM   #9
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Tda 2050A Schematic Slightly different
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File Type: jpg 2050a.jpg (24.5 KB, 432 views)
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