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Diode circuit analysis

Discussion in 'Electronics Homework Help' started by smiljanic997, Feb 3, 2018.

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  1. smiljanic997


    Jun 8, 2017
    Hey guys. I have this circuit and I have to find the following: circuit's logic function, minimum value of Rc, and, for me the most confusing part, the time of rise and fall of Vout. Other information : beta min 50, beta 100, Vcc 10V, Ubet 0,5V, Ubes 0,7V, Ube 0,6V, Ud 0,6V, Uces 0,2V.

    Attached Files:

  2. Audioguru


    Sep 24, 2016
    Its logic function is obvious:
    1) When one or both inputs are low then what is the output?
    2) When both inputs are high then what is the output?
    Its logic family was old fashioned DTL used about 54 years ago.

    The transistor can discharge the capacitor quickly and the resistor Rc charges it slowly.
    You know the minimum beta, the value of R1 and other important things so you can easily calculate the minimum value for Rc.
  3. Harald Kapp

    Harald Kapp Moderator Moderator

    Nov 17, 2011
    DTL = Diode Transistor Logic
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