Current Sensing circuit to detect Speaker failure


In our design we are using an audio amplifier supporting output from 1W to 4W. To monitor if speaker is working or not we are planning to use current sensing devices. Kindly suggest us what would be the best approach for this.

Note: Audio amplifier operating voltage : 3-5V, Speaker impedance 3-10 ohms(We planned to test different speakers supporting the wattage.


Nidhi P Shetty

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