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loud class AB amplifier

Discussion in 'Electronic Basics' started by [email protected], Apr 9, 2007.

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  1. Guest

    LM386 when operated from 6 volts can give sufficiently loud sound.

    Would it be possible to design class AB amplifier which can give that
    kind of loudness but with only 3 volts battery.

    Can I just use single stage class AB amplifier or .... what.

    Thank you in advance
    C
     
  2. Eeyore

    Eeyore Guest

    You only have half the volts available so, even ignoring for a second device
    saturation losses, at best you have a 6dB quieter sound.

    To regain the required volume you could try 2 AB stages operating in 'bridged
    mode'. This is where the 2 amplifiers operate in anti-phase and the speaker
    connects between the 2 outputs.

    Graham
     
  3. John Fields

    John Fields Guest

     
  4. Ron M.

    Ron M. Guest

  5. phaeton

    phaeton Guest

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