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Piezo speaker amplifier?

Discussion in 'General Electronics Discussion' started by gatoulisss, Jan 27, 2019.

  1. gatoulisss

    gatoulisss

    36
    2
    Jan 23, 2015
    hello everyone I need help
    I damaged accidentally a very loud piezo and I need to rebuild it
    The piezo was driven from mcu pin connected to a npn ztx614 transistor and a kind of a transformer (I’ve attached pics of it) witch I broke
    Can you help me find this part or something similar so i can take again this loudness I had?
    It’s use was like amplifier I think
    Thank you !
     

    Attached Files:

  2. Bluejets

    Bluejets

    3,385
    681
    Oct 5, 2014
    More than likely some form of audio transformer normally used for impedance matching.
    Just what values would depend on the rest of the circuit.
     
  3. gatoulisss

    gatoulisss

    36
    2
    Jan 23, 2015
    so to find that part i have only to search for a audio transformer?
     
  4. (*steve*)

    (*steve*) ¡sǝpodᴉʇuɐ ǝɥʇ ɹɐǝɥd Moderator

    25,160
    2,676
    Jan 21, 2010
    No, you would have to know the specifications of the original. And those would be difficult to even guess.
     
  5. shreya0118

    shreya0118

    4
    0
    Mar 26, 2019
    What are the specifications of the original?
     
  6. Ylli

    Ylli

    179
    30
    Jun 19, 2018
    What device is it from? Give as many details as you can so maybe someone can find a schematic and/or some specs.
     
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