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Powering oscillated peizo buzzer

Discussion in 'General Electronics Discussion' started by Pharaday, Feb 26, 2016.

  1. Pharaday

    Pharaday

    37
    2
    Jan 18, 2016
    I'm trying to push sound through this little peizo buzzer for a talkbox. it's normally coennected to what I assume is a square wave generator but in rearsight, I guess it might be an amp. The circuit has 3 terminals. You put gnd to one and hot to either of the others, depending if you want a solid tone or one with tremolo. I wanna use the peizo cause its beep is ear-peircing plus youtube said to do something similar. When I connected the peizo to my amp alone, it worked but not nearly as loud as the beep. I know it lost its power but... but the amp.

    How can I push more sound? power it somehow? maybe put its audio through a terminal while connected the circuit? or is this jewel only good for scaring THE LIVING CRAP out of my neighbors?
     
  2. AnalogKid

    AnalogKid

    2,283
    646
    Jun 10, 2015
    No part number, no photo, no schematic - no idea.

    ak
     
  3. Pharaday

    Pharaday

    37
    2
    Jan 18, 2016
    Oops I even had the pic ready...
    2012-10-28_17-22-47_897.jpg
     
  4. Pharaday

    Pharaday

    37
    2
    Jan 18, 2016
    Yea so is that an amp too? I noticed it can drive those tiny peizos too. What else can it do that I missed?
     
  5. Colin Mitchell

    Colin Mitchell

    1,419
    314
    Aug 31, 2014
    The 3 terminals on the piezo are part of an oscillator. Th 3rd wire is feedback. The oscillator will produce 110v AC. That's why it is so loud.
     
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