Determine the characteristic equation of a control system with the block-diagram shown in Fig. 1.1 .

1) \(1+G_{2} H_{2}-G_{1} G_{2} G_{3} H_{1} H_{2}\)
2) \(1+G_{1} G_{2} H_{2}-G_{1} G_{2} G_{3} H_{1} H_{2}\)
3) \(1+G_{2} H_{2}+G_{1} G_{2} H_{1}\)
4) \(1+G_{2} H_{2}+G_{1} G_{2} H_{1}-G_{1} G_{2} G_{3} H_{1} H_{2}\)

Figure 1.1

Transcribed Image Text:

G3 X- G G Y H H