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Audio Amplifier Design

Discussion in 'Audio' started by Arghya, Oct 23, 2017.

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  1. Arghya

    Arghya

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    Oct 23, 2017
    I am making a audio amplifier using tda2030 or tda2050. It will connected to my raspberry pi and will be on 24*7. There is a continuous hum noise when i connect it to Pi but no noise when connected to mobile. Please suggest me a way to eliminate the humm. And is there a way to keep the amplifier in a sleep state unless an audio signal is received because keeping it always on will heat it up significantly. These are the circuits i will be using. And i would power it with 5V (most preferable)or 12V.
    [​IMG]
    [​IMG]
     
  2. BobK

    BobK

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    Jan 5, 2010
    Do you have the + and - supplies that circuit requires?

    Bob
     
  3. Audioguru

    Audioguru

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    Sep 24, 2016
    Here we go again. I already answered and others too on electro-tech-online.com
    How many other websites will it be on??
     
  4. (*steve*)

    (*steve*) ¡sǝpodᴉʇuɐ ǝɥʇ ɹɐǝɥd Moderator

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    Jan 21, 2010
    Come on, he's only cut and pasted this query onto three sites as far as I can see.

    And given that he's replied to messages in only one (and seems to be getting somewhere) I think we can close this thread.
     
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