block diagrams control system

Discussion in 'General Electronics Chat' started by TimeZero, Oct 3, 2015.

  1. TimeZero

    Thread Starter New Member

    Sep 14, 2015
    18
    0
    hi
    can explain how do this algebra?

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  2. TimeZero

    Thread Starter New Member

    Sep 14, 2015
    18
    0
    How turned?
    Capture.PNG
     
  3. Papabravo

    Expert

    Feb 24, 2006
    10,144
    1,790
    The summing block with two "plus" inputs represents the sum:

    V_4(s) + \frac{V_4(s)}{G_2(s)}


    So you can replace that with a single block having the indicated transfer function and an input of V_4(s)

    Two cascaded blocks represents the multiplication of the two transfer functions.
     
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