Relation between open loop and unity feedback close loop response

[tina_singh]

hi!
can someone please help me with this problem...i have to match the open loop respone to the close loop unity feedback system of a control system.

what is the relation between the two?


thanx in advance

 

[tina_singh]

these are the two response..
can some one please help now...

than in advance

 

[CWatters]

Is line "A" or "B" meant to be straight?

If the open loop gain is high enough the cloosed loop response with unity feed back is Vout = Vin.

 

[CWatters]

Perhaps read down to equation 6 and the next paragraph or two..

http://users.ece.gatech.edu/mleach/ece3050/notes/feedback/fdbkamps.pdf