Output waveform

Discussion in 'Homework Help' started by Hello, Jan 11, 2009.

  1. Hello

    Thread Starter Active Member

    Dec 18, 2008
    82
    0
    Can you please have a look at the attached file.

    I am having difficulty in explaining how the alarm circuits work (page 6 of file, Intro. part 2.)

    Any help is greatly appreciated.
     
    Last edited: Jan 11, 2009
  2. mik3

    Senior Member

    Feb 4, 2008
    4,846
    63
    When the sine wave is greater than Vref the output will be positive otherwise it will be negative. Thus a square wave is produced on the output.
     
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