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Solve noise for amplifier

C

Chauny

Jan 1, 1970
0
Hello people,

I make a amplifier circuit with TDA2030, the amplifier works but when
i connect it to loudspeaker, turn on the power, i hear noise from
loudspeaker without input. I can not solve this problem although i
make layout with center ground.
Could anybody help me solve this problem?

Regards,
Chauny.
 
P

patel moni

Jan 1, 1970
0
Hello people,

I make a amplifier circuit with TDA2030, the amplifier works but when
i connect it to loudspeaker, turn on the power, i hear noise from
loudspeaker without input. I can not solve this problem although i
make layout with center ground.
Could anybody help me solve this problem?

Regards,
Chauny.

i made instument for that i use same ic for audio amplifier
so u want that ckt?
i ll give u?
i got output corectly
may be other signal amlified &u get wrong result
 
C

Chauny

Jan 1, 1970
0
i made instument for that i use same ic for audio amplifier
so u want that ckt?
i ll give u?
i got output corectly
may be other signal amlified &u get wrong result

Yes, i do. Could you give me?
Thank you so much!
Chauny
 
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