8 watt audio amplifier

Discussion in 'The Projects Forum' started by InnocentOfTheWorld, Jun 22, 2011.

  1. InnocentOfTheWorld

    Thread Starter Member

    Apr 15, 2010
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    hello
    how are you all
    i want an efficient design of 8 watt audio amplifier.
    kindly provide me design file in proteus so i can make it on pcb.
    also it should be having noise reduction functionality.
     
    Last edited: Jun 22, 2011
  2. Wendy

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  3. InnocentOfTheWorld

    Thread Starter Member

    Apr 15, 2010
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    .i saw a lot of circuits on internet using LM383 and TDA2003. As it is my university project and LM383 is a built in class B amplifier. i don't want to use ic's which are made for these special purposes. i need a design of 8 watt audio amplifier with less noise using MOSFET'S or BJT'S . kindly help me with an efficient design.
    you can mail me at
    <SNIP>
     
    Last edited by a moderator: Jun 22, 2011
  4. #12

    Expert

    Nov 30, 2010
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    Are you getting a University education in "How to get other people to design circuits for you"?
     
  5. InnocentOfTheWorld

    Thread Starter Member

    Apr 15, 2010
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    for the first time you do anything you will always need some guidance or a teacher @ mr #12
     
  6. #12

    Expert

    Nov 30, 2010
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    I think the teacher is included in the university, and is supposed to guide you. However, you can post a schematic of what you have accomplished and describe the points you are having difficulty with. That will probably get you some help.
     
  7. InnocentOfTheWorld

    Thread Starter Member

    Apr 15, 2010
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    o.k i post the design wait
     
  8. Wendy

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  9. bertus

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  10. KJ6EAD

    Senior Member

    Apr 30, 2011
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    If you just click the given link for the Completed Projects Collection, you get the default 2 weeks depth (no amplifier circuits in that time). To see all history you have to change the setting to "from the beginning". You can also do an advanced search using the keyword "amplifier" and the forum "Completed Projects Collection".

    "Minimus" and "Quatour" seem to be in the right wattage zone but both use specialty audio amplifier ICs.
     
    Last edited: Jun 22, 2011
    InnocentOfTheWorld likes this.
  11. InnocentOfTheWorld

    Thread Starter Member

    Apr 15, 2010
    47
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    thanks kj6ead actually i want to design it with differential input stage and i think class ab amplifier output stage would be good. but i don't know how to set the different parameters of the circuit
     
  12. Audioguru

    New Member

    Dec 20, 2007
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    Since your teacher is not teaching you then you must learn about audio power amplifier circuits yourself with tutorials or books.
    On my reply to your PM I recommended www.redcircuits.com and Rod Elliot's site where you can simply copy the amplifiers. Didn't you look at them?
    When you copy circuits then you learn nothing and might get into trouble with your teacher.
     
  13. #12

    Expert

    Nov 30, 2010
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    Trouble with the teacher? How about trouble with the rest of your life as any kind of electronics worker?
     
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