Hello. Got this block diagram question the other day. Having a bit of trouble with the last part, and not sure of my answer to part b) either. I attach the question.
a) E = R - Y
but Y = GKR / (1 + GKH)
then E = R - GKR/(1+GKH)
For E = 0,
R = GKR/1+GKH
Rearrange for H = 1 - 1/KG
b) I just worked backwards to achieve:
Y = [ (0 - (1-1/KG)) + Td*P ] *G
= 1 - KG + Td*P*G
c) Not really sure about this one. Not come across Y(s) = 0 transfer functions before. Any general information would be appreciated.
a) E = R - Y
but Y = GKR / (1 + GKH)
then E = R - GKR/(1+GKH)
For E = 0,
R = GKR/1+GKH
Rearrange for H = 1 - 1/KG
b) I just worked backwards to achieve:
Y = [ (0 - (1-1/KG)) + Td*P ] *G
= 1 - KG + Td*P*G
c) Not really sure about this one. Not come across Y(s) = 0 transfer functions before. Any general information would be appreciated.
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