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80W Audio Stereo Amplifier Circuit with TDA7294

Power Amp-TDA 7294

Power Amp-TDA 7294

Welcome back to Free Circuit dot com again,Today ,I would like to present a small audio amplifier circuit with TDA7294.

You can follow by PCB thus as my post.

The described circuit uses two TDA7294 for use in stereo (2 x 80 watts) and bridge mode (1x 180 watts), configure this setting only four drivers.

To facilitate the installation of each fuel. The performance is a kind of symmetry with a simple bridge rectifier 6A, and two large electrolytic capacitors, which 10000μF 22000μF/50v. This power supply for two modules. The processor is recommended 22-0-22 to 28-0-28 / 5 A, depending on the quality of the transformer is at least 6 amps is recommended.

Parts Layout PCB

Parts Layout PCB

Amp TDA7294 PCB

Amp TDA7294 PCB

The TDA7294 is a monolithic integrated circuit in MULTIWATT15 package for use as audio class AB amplifier in Hi-Fi field applications (stereo, powered speakers, car, high-end TV) is provided. Many thanks to the wide range of voltage and current capacity he is able to offer the highest property taxes in both 4Ω and 8Ω, to offer even in the presence of poor supply regulation, with the rejection of high-voltage power supply. The built-in mute with delay sounds easier to avoid the remote mode off.

Posted in Amplifier, Audio amplifier, Power amplifier. Tagged with , , , .

By freecircuitguy
October 2, 2011

14 comments

14 Responses

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  1. thodoris said
    on October 6, 2011

    realy nice circuit! i think that i found the circuit that i was looking for to built an amplifier :) could you please tell me what to do for bridge mode?

  2. Cirill said
    on October 11, 2011

    Greetings. In this scheme replacement of microcircuit TDA 7294 on microcircuit TDA 7293 without change of components in electric chains is possible.

  3. shravanth said
    on December 22, 2011

    hello is this circuit is working good

  4. Faizal Mansar Alam said
    on February 9, 2012

    I am using bridged TDA 7294 as left and right channel,performance is superb with ,room shaking bass

  5. Naveen said
    on March 24, 2012

    i have 80w pmpo stereo speakers and i need to connect it to 3.5mm jack output. will this circut help?

  6. vairavan said
    on June 7, 2012

    preamp circuit

  7. Ruan said
    on June 28, 2012

    What is the value of Cin?

  8. Victor said
    on July 1, 2012

    I this ckt What is that Cin?
    Can u explain it please

  9. nisanth said
    on July 18, 2012

    what is the value of Cin??

  10. Karthikeyan said
    on July 22, 2012

    Pls send Cin value

  11. ali said
    on July 27, 2012

    what is cin ?

  12. Elias C said
    on August 5, 2012

    Could I have the diagram for this circuit please?.
    Thank you

  13. nandana said
    on August 7, 2012

    CAN YOU PLEASE SEND ME THE CIRCUIT DIAGRAM TO MY EMAIL

  14. romi said
    on August 11, 2012

    does this works at 12v dc?? thanks

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