1. diwa2000@gmail.com

    Thread Starter Active Member

    Apr 15, 2008
    40
    0
    can a comparator read the out form the integrator circuit....the output of which is a negative voltage ramp.... and compare that with a reference voltage. Geneally whats the output of a comparator ...is it only high(+5V) or low(0V)... or anything else also.
    Please clear.
    Thanks
     
  2. hgmjr

    Moderator

    Jan 28, 2005
    9,030
    214
    Here is the material covering comparators in the AAC ebook.

    hgmjr
     
  3. bertus

    Administrator

    Apr 5, 2008
    15,647
    2,346
    Hello,

    The input and output of a comparator depend also on the powersupply.
    If a comparator is connected to a powersupply that gives say +15 Volt for the positiv powersupply and -15 Volts for the negativ powersupply, than the output will swing between + 15 Volt and -15 Volt, depending on the inputs.
    The reference voltage may be negativ in this case.

    Greetings,
    Bertus
     
  4. mik3

    Senior Member

    Feb 4, 2008
    4,846
    63
    Yes you can do it. Your comparator's output will swing between the two extreme voltages of your power supply. Thus, if you have a single supply (eg. 0-15 V) the output will rise to nearly 15 if the non-inverting input is more positive than the inverting input and to near 0 if the opposite happens. If you have a bipolar supply (eg. 15-0-(-15)) your output will go to near 15 if the non-inverting input is more positive than the inverting input and to near -15 if the opposite happens.
     
  5. diwa2000@gmail.com

    Thread Starter Active Member

    Apr 15, 2008
    40
    0
    thanks mik3
     
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