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Solved Example Pro...
A. Find the equivalent transfer function of three cascaded blocks, \( G_{1}(s)=\frac{1}{s+1}, G_{2}(s)=\frac{1}{s+4} \), and \( G_{3}(s)=\frac{s+3}{s+5} \).
B. Find the equivalent transfer function of three parallel blocks, \( G_{1}(s)=\frac{1}{s+4}, G_{2}(s)=\frac{1}{s+4} \), and \( G_{3}(s)=\frac{s+3}{s+5} \).
C. Find the equivalent transfer function of the negative feedback system of Figure 1 if \( G(s)=\frac{s+1}{s(s+2)} \), and \( H(s)=\frac{s+3}{s+4} \).
D. For the system of 1. C, push H(s) to the left post the summing junction and draw the equivalent system.
E. For the system of \( 1 . \mathrm{C} \), push \( \mathrm{H}(\mathrm{s}) \) to the right past the pickoff point and draw the equivalent system.
Figure 1
