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Homework Help: Proportional control system: Calculating the change in offset

  1. Nov 10, 2018 at 6:52 AM #1
    1. The problem statement, all variables and given/known data
    I'm having trouble worki out the transfer function of the block. Whats confusing me is the input of O2 input of 50. If that wasn't there I know the transfer function would be Oo/Oi=G/1+GH.

    2. Relevant equations


    3. The attempt at a solution
     

    Attached Files:

  2. jcsd
  3. Nov 10, 2018 at 10:32 AM #2

    LvW

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    The answer is simple: You have two input sources. Hence, we can define two different transfer functions (one of the sources is set to zero).
     
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