Ultrasonic Transmitter / Level Shifter

Discussion in 'General Electronics Chat' started by bchen, Mar 26, 2011.

  1. bchen

    Thread Starter New Member

    Mar 26, 2011
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    0
    For an ultrasonic transmitter, if I connect one side to a +9v/0v pulse train (1010101010) and connect the other side to a inverted +9v/0v pulse train (0101010101), is the transmitter going to produce a +9v/-9v pulse train?

    If it doesn't, what is the simplest way to shift the +9v/0v pulse train to -9v/0v ?
     
  2. hgmjr

    Moderator

    Jan 28, 2005
    9,030
    214
    Can up explain why you need to level shift the signal?

    hgmjr
     
  3. Audioguru

    New Member

    Dec 20, 2007
    9,411
    896
    It is common for an ultrasonic transmitter to use a bridge to drive both ends of the transducer so its p-p signal is nearly double the supply voltage. The bridge inverts the signal that feeds one end of the transducer.
     
    Last edited: Mar 26, 2011
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