40W 4 channel audio amplifier


Posted on Feb 7, 2014

With the integrated audio TDA8571J designed for automotive applications, this circuit can expand the sound of the car radio or connect a portable MP3 playerin it. Internally, thechiphas eightoperationalamplifierseton the bridge, allowingeachspeaker terminalbeing energized. Dontconnect thenegative terminal ofthe mass ofthe speaker, becausetheywillproducea short circ


40W 4 channel audio amplifier
Click here to download the full size of the above Circuit.

uiton theoutput. This circuitprovidesa total of fourspeakers4 ohmsand40Wat12vpowered. It is thereforeidealfor usein the car. Totalharmonic distortionis rather high, about 10%at full power. Butwithhalf the powerrequirements(20W)is lessthan 2%. Anyway itis not intendedtohave ahigh performancesystemin the car. With theintegratedaudioTDA8571Jdesignedforautomotive applications, this 40w amplifier circuit can expandthe soundof the car radioorconnecta.




Leave Comment

characters left:

Related Circuits

  • New Circuits

    .

     


    Popular Circuits

    8 LED`s Audio VU Meter
    AttoBasic
    Capacitance switched light
    TDA7360 Stereo Test and ApplicationCircuit and Datasheet
    interfacing to microprocessor
    A variable frequency oscillating circuit transistor



    Top