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Old 28th September 2006, 02:18 PM   #1
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Default tda2030, bridges

hi can i bridges two set of tda2030 already bridges to have 28w of power ? Like that i will double the power out....
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Old 28th September 2006, 08:05 PM   #2
lineup is offline lineup  Sweden
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Default Try TDA2050

hello
ST TDA20xx series Audio Amplifier chips

http://www.st.com/stonline/products/...61/tda2050.pdf
http://www.st.com/stonline/products/...60/tda2040.pdf
http://www.st.com/stonline/products/...9/tda2030a.pdf
http://www.st.com/stonline/products/...58/tda2030.pdf

May I suggest you forget about using the old TDA2030 / TDA2030A.
Even TDA2040 is a step up in audio quality.

But I really recommend you have a look at TDA2050,
if you want to use budget price amplifier chips from STMicroelectronics http://www.st.com/
TDA2030 - 14 watt, TDA2040 - 20 watt, TDA2050 - 32 watt
They can all be used with 4 ohm loudspeakers.
So without any bridging you will get more than 2x more power out of TDA2050.

Max supply voltage for TDA2050 is +25 -25 VDC.
Test data in PDF datasheet is using supply +22 -22 VDC.
Take this as a VERY good hint what is about you should use!


Quote:
TDA 2050 - 32W Hi-Fi AUDIO POWER AMPLIFIER
HIGH OUTPUT POWER
(50W MUSIC POWER IEC 268.3 RULES)
HIGH OPERATING SUPPLY VOLTAGE (50V)
SINGLE OR SPLIT SUPPLY OPERATIONS
VERY LOW DISTORTION
SHORT CIRCUIT PROTECTION (OUT TO
GND)
THERMAL SHUTDOWN
A also suggest you search this forum for topics: TDA2050

More info and good advices also at http://gainclone.com/
which is a dedicated and good forum for Chip Amp builders.
Recommended!


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Old 29th September 2006, 06:54 AM   #3
sangram is offline sangram  India
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If that is the ONLY chip you have available, then yes.

2030 is a cheap (<25cents) chip and is a good chip for beginners to build. My first halfway decent chipamp was built using inspiration from this very site, and I built an inverted 2030 bridge amp, to get a good 20-watt amp at throwaway prices.

Since then I've used that experience to build other things.

But yes, it doesn't sound that great, really. The bass is very thin, and the chips run very hot.

You may not even get real ones anymore, they're all probably fakes or remarked chips...

For such a cheap chip, I wouldn't bother using a bridging circuit, just a single resistor to bridge the amps. Works well enough for that level of amp.
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