Most popular and best schmitter trigger design for comparator

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

  1. nepdeep

    Thread Starter Member

    Sep 14, 2011
    139
    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
    16,851
    7,501
    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
    2,691
    802
    Used the one shown here.

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

    Expert

    Mar 14, 2008
    13,867
    3,507
    Depends on the accuracy you need for the trigger point.
     
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