Transfer function synthesis

　・In Japanese
＜Premise knowledge＞
　・Transfer function

This section explains how to synthesize multiple transfer functions and express them as a single transfer function.

■Series combination of transfer functions

■Parallel combination of transfer functions

■Feedback combination of Transfer Functions

＜Derivation method＞
Take the following feedback coupling as an example. It can be easily derived by putting X as an intermediate variable.



First,


and,


Substitute (2) into (1),


After that, it is obtained by a simple formula transformation.

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