Hi guys,
I have made an amplifier out of a LM3875 amplifier chip. The power supply is a DC 28x2 volts 4A adapter.
Now the problem is that when I increase the sound volume by the 10k pot of the amplifier the sound happens to cut off then starts working for a second then cut off gain...
I have no problem when the volume pot is low but as I told I get that problem when the volume pot is increased. It seems that after getting the cut off- then working repetitively after then by increasing he said pot the sound does not increase anymore just I got a very quick cut -then working!
The adapter caps are 6800uF and I have the said problem even before the chip or the heat sink gets warm.
Any idea what the problem can be? The circuit is made upon the Typical Application in the first page of the datasheet (you can see it below).
Thanks
I have made an amplifier out of a LM3875 amplifier chip. The power supply is a DC 28x2 volts 4A adapter.
Now the problem is that when I increase the sound volume by the 10k pot of the amplifier the sound happens to cut off then starts working for a second then cut off gain...
I have no problem when the volume pot is low but as I told I get that problem when the volume pot is increased. It seems that after getting the cut off- then working repetitively after then by increasing he said pot the sound does not increase anymore just I got a very quick cut -then working!
The adapter caps are 6800uF and I have the said problem even before the chip or the heat sink gets warm.
Any idea what the problem can be? The circuit is made upon the Typical Application in the first page of the datasheet (you can see it below).
Thanks