engineering recuitment GATE IN Test Series 2023-24 Mock Test Control Systems Signal Flow Graph and Block Diagram Block Diagram Reduction Technique
The noise transfer function \(\frac{{C\left( s \right)}}{{N\left( s \right)}}\) is approximately given by
1
\(\frac{1}{{{G_1}\left( s \right){H_2}\left( s \right)}}\) for |G1(s) H1(s) H2(s)| ≪ 1
2
\(- \frac{1}{{{H_2}\left( s \right)}}\) for |G1(s) H1(s) H2(s)| ≫ 1
3
\(\frac{1}{{{H_1}\left( s \right){H_2}\left( s \right)}}\) |G1(s) H1(s) H2(s)| ≫ 1
4
\(\frac{1}{{{G_1}\left( s \right){H_1}\left( s \right){H_2}\left( s \right)}}\) |G1(s) H1(s) H2(s)| ≪ 1