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Why my transfer function is irresponsive?

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Subarna Giri
Subarna Giri on 18 Apr 2018
Commented: Subarna Giri on 19 Apr 2018
Hi, Everyone I have a problem with transfer function application in closed loop buck-boost converter. My transfer function for that converter has higher order in numerator than denominator which is not accepted by the Simulink block. I removed higher order term from the numerator still the transfer function is not responding to the circuit. here is the screenshot of circuit. how to correct the problems. Please advised me. thank you.
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Answers (1)

Subarna Giri
Subarna Giri on 18 Apr 2018
Thank you for your kind response. Here is my Simulink model and the screen shot of transfer function. I must use this transfer function. This model has been designed for 12Volt constant output with 5A load. My design is correct in matlab command bode plot but I could not run the model in simulink with there desired parameter. Please help me kindly to solve this problem. Thank you, again. Have a great day.
Regards, Subarna

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