Bridge Parallel AMP

[myanmar]

Um, did you mistype? Neither TDA2030 nor TDA2050 can withstand +/-45 rails. Max is +/-25V.

Output voltage is max +/- 25~30 V.
My power supply drop to +/- 16V too.
Normal Power supply is +/- 22.5V.


Sorry for mistake.

[sivan_and]

myanmar wrote:

Yesterday I tested with no load.( not attach spk )Because I want to know maximum output voltage.
Voltage swing above 30V.
But My BPA burn out.
Why?

OSCILLATIONS !!!

[myanmar]

OSCILLATIONS !!!

Is that sure?
How can I test?
How can I protect?
How can I repair?


Another Bridge design
I already tested TDA2050 bridge amplifier with (TDA2030 bridge ST Design)
Circuit cannot work with TDA2050 ( supply voltage above +/- 20 V )
Only work at low supply voltage.
What is that problem?
Oscillation?
Pls, Help me.

[myanmar]

Hello Friends.


Here is my bridge amplifier.
Used TDA2030

Did you see GIGABYTE AMP ?

U can see in photo.

[myanmar]

Nest photo

[astral_projecti]

Can someone give me a schematic for the bridge application of TDA2050?