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

 

[rezeew]

Hello,

The open loop response and the closed loop unity feedback response are two important components of a control system. The open loop response refers to the system's response without any feedback, while the closed loop unity feedback response refers to the system's response with feedback.

The relationship between the two can be described by the concept of feedback. In a control system, feedback is used to compare the output of the system with the desired input, and then adjust the system's behavior accordingly. In an open loop system, there is no feedback, so the system's response is solely determined by the input. On the other hand, in a closed loop system with unity feedback, the output is fed back and compared with the input, allowing for adjustments to be made to improve the system's response.

In terms of matching the open loop response to the closed loop unity feedback response, it is important to note that the closed loop response will always be more stable and accurate than the open loop response. This is because the feedback allows for corrections to be made in case of disturbances or errors in the system. Therefore, the closed loop response can be seen as an improved version of the open loop response.

I hope this helps to clarify the relationship between open loop and closed loop responses in a control system. Let me know if you have any further questions. Good luck with your problem!