Most popular and best schmitter trigger design for comparator

Discussion in 'General Electronics Chat' started by nepdeep, Dec 17, 2012.

  1. nepdeep

    Thread Starter Active Member

    Sep 14, 2011
    140
    0
    Hi I have the following as the one I have been using...is there other good ideas or better practices...likey may be pulled to different voltage or dirrerent way of providing reference voltage...and yes easy to calculate.. schimit (Copy).jpg
     
  2. #12

    Expert

    Nov 30, 2010
    17,897
    9,316
    The traditional Schmidt Trigger toggles at 1/3 and 2/3 Vcc and that gives it much better noise immunity than the circuit you presented. I cast a wary eye on your circuit because it might false trigger a lot more than the traditional style.
     
  3. atferrari

    AAC Fanatic!

    Jan 6, 2004
    2,839
    943
    Used the one shown here.

    Seems simpler than yours because common transistors could work.
     
  4. crutschow

    Expert

    Mar 14, 2008
    16,545
    4,459
    Depends on the accuracy you need for the trigger point.
     
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