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

    LCD Serial Terminal
    Logic Probe with 74LS47
    Electromyogram Monitor
    1 Cell battery LED flasher circuits
    syntha vcf historical
    IR Remote Control Tester
    water activated alarm
    Two Basic Motor Speed Controllers
    dtmf circuit
    SOUND LEVEL METER
    DC Motor Controller and Tachometer
    INA321 322 input current protection circuit diagram
    Electric valve motor control circuit
    High-performance recording front end circuit



    Top