Proportional control system: Calculating the change in offset

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The discussion focuses on calculating the transfer function of a proportional control system with two input sources. The user is confused about how the O2 input of 50 affects the transfer function. It is clarified that two different transfer functions can be defined by setting one input source to zero. This approach simplifies the analysis of the system's behavior. Understanding the impact of multiple inputs is crucial for accurate control system modeling.
James FC
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Homework Statement


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.

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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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