IR sensing using MOSFETs and Transistors

Discussion in 'The Projects Forum' started by Terrenium, Nov 12, 2013.

  1. Terrenium

    Thread Starter New Member

    Nov 12, 2013
    Hey, I know how to make detect an obstacle with IR sensors using OP-Amp. But I am supposed to make a circuit that does not involve any complicated ICs even OP-Amp. So can some one let me know how to detect an obstacle using MOSETs with IR sensors of course. Also help me know how to make LM193 type comparator using MOSFETs or transistors??
  2. Alec_t

    AAC Fanatic!

    Sep 17, 2013
    Research FET amplifiers.
    Research 'long tail pair'
    Terrenium likes this.