Author Topic: Help with lm386 (Read 1817 times)

nobody · « **on:** January 29, 2013, 05:48:43 pm »

how could i turn off lm386 when i plugged headphones and lm386 on when headphones not plugged . im using this circuit

ChrisGreece52 · « **Reply #1 on:** January 29, 2013, 08:20:26 pm »

You could connect a switch between any ground of positive voltage in the circuit or just between pin 4 and 2 ( 4-------. / .----2 )

nobody · « **Reply #2 on:** January 30, 2013, 08:37:32 am »

But what kind of switch that would turn on when headphones not plugged and turn off when headphones plugged

ChrisGreece52 · « **Reply #3 on:** January 30, 2013, 02:36:10 pm »

That i cant answer.You could use a pressure switch or just a microcontroller.

SeanB · « **Reply #4 on:** January 30, 2013, 03:59:58 pm »

Standard headphone sockets are available with a built in switch to provide a closed contact when headphones are inserted.

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