Question

The transfer function G1+G2 is derived from which diagram, using signal flow graph. 1-GH1-G2H1

Answer 1

I We for the Given :- Transfer function = Git G2 - GHI - GHq hauc to draw the signal flow graph of above transfer function we know that the Mason's Gain formula our all transfee function is gren as To f = EPK DK PAT P₂B2 PRAK where Pic Path Gain of forward path 0=1-[sum of loop + sum of Gain products of all individual loops Truro nou touching loops = + Kth Gairs of all LA AK = that value all the Now je of al '&' obtained by remoung the loops touching Kth forward path from the Given transfer function compared this | - GoHy-G2 with Mosons Gain formula je To f = E PRAK we Can Tif = Githe the

After comparing, we get that there are two forward paths je Gif Ga which will be drawn 62 RA TGI and there are octo two indi vidual loops Gg Hi which is ie drawn G, H, and GQ - R(). o GGI els) 41 So the cullall will be as drawn abone onuall signal flow diagram function of above will be The one transfu graph T. f = Gut G2 1- [G, H, +Gg H, or Git Go 1-G, H, - G H I Honce Verified