Hello! Could someone kindly assist me in comprehending the purpose and operation of the system shown below?
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Danikha Shyken
on 10 Sep 2023
Commented: Sulaymon Eshkabilov
on 11 Sep 2023
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/1478186/image.png)
This is one of the subsystems of an input selector circuit.
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Sulaymon Eshkabilov
on 10 Sep 2023
Edited: Sulaymon Eshkabilov
on 10 Sep 2023
This subsystem has two input signals: Voltage Input (Vin) and Reference (Vref). The sum of Vin and Vref is multiplied by a gain and then is fed into PI controller which has reference signal of rectangular pulse. The difference singal between Vin and output of the PI controller is fed into two Relay blocks (their parameters can be different or the same) which produce two output signals. According to the given description, the two relays create reverse of the output signal coming from the summing junction (difference signal between Vin and output of the PI controller). That is all.
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