AUDIO AMPLIFIER CIRCUIT USING LM386

simple sound amplifier project
Here i am presenting you a Low cost sound amplifier. LM386 IC is the heart of this circuit, it is capable of amplifying weak audio or music signals. Connect the audio input of the circuit with the output of signal source in which the sound to be amplified.
Use this project to increase the sound of a music player, a microphone, or for an I-pod. The circuit gives an output power of about 1Watts.




circuit diagram audio amplifier



LM 386 is a versatile, 8 pin dual input package ic. Which is commonly used to amplify low power signals. Normally it provide a gain of 20 and is able to increase upto 200. One of the main advantage is that it consumes only a low voltage.

You can try Mic and Audio Amplifier Circuit

Comments

  1. My DIgital LyfAugust 28, 2012 at 10:43 PM

    Nice article..
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    ReplyDelete
  2. techguySeptember 10, 2012 at 8:49 PM

    sir can you label all the parts... and give me a list thx

    ReplyDelete
  3. TittuSeptember 10, 2012 at 11:01 PM

    Techguy,

    Each and every part is specified in the circuit diagram. Click on the image to open it. If i missed anything plz inform me....

    ReplyDelete
  4. UnknownSeptember 22, 2012 at 12:36 AM

    Hi Tittu,
    Good job. You are from Kollam ,right?
    Bobby Jacob
    Calgary, Canada

    ReplyDelete
  5. TittuSeptember 23, 2012 at 9:30 PM

    Ya Bob......

    ReplyDelete
  6. UnknownOctober 8, 2012 at 5:58 PM

    can we use this amplifier from dvd input?

    ReplyDelete
  7. TittuOctober 11, 2012 at 12:02 AM

    I think its possible

    ReplyDelete
  8. vishuJuly 26, 2013 at 4:54 PM

    What if i need 8 watt or more output?

    ReplyDelete
  9. vishuOctober 12, 2013 at 2:22 PM

    Which cap is betwn pin5 and the speaker? Pls guide.

    ReplyDelete
  10. UnknownJune 4, 2014 at 4:58 PM

    put 220mf cap between pin5 & spkr.

    ReplyDelete
  11. UnknownJanuary 14, 2015 at 5:01 PM

    Name the cap betw pin 5 & speaker.

    ReplyDelete

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