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Negative feedback is a feedback where it is used in negative side in a closed loop system.Such as a inverting side feedback in op-amp.

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Is the gain same for same system in open loop and closed loop?

A: DEFINITELY NOT Open loop is defined as no feedback. any kind of negative feedback will reduce the gain


What is a closed loop system?

A control system that appears to be self-regulating. Closed-loop systems employ feedback and a reference of correctness (norm or set point). Deviations from the norm are detected and corrections made in order to maintain a desired state in the system. Closed loop systems provide the homeostatic mechanism of many physiological functions (see negative-feedback) and also control some movement patterns, where feedback from proprioceptors and other receptors play an important part. Compare open-loop-system.


Formulas of a unity-feedback loop?

In general, the transfer function of closed loop system is (Y/X)=G*K/(1+G*K*H) ----- negative feedback (Y/X)=G*K/(1-G*K*H) ----- positive feedback where G- transfer function of the plant 0r system K - controller H - feedback transfer function Y-output in laplace domain X-reference in laplace domain so the transfer function of the closed loop system with unity feedback is so H=1(unity) (Y/X)=G*K/(1+G*K) ------- negative feedback (Y/X)=G*K/(1-G*K) ------- positive feedback if u couldn't understand notify me... i will improve it


Closed loop gain for feedback oscillators?

Feedback oscillators have a closed loop gain of


What makes closed-loop op amp unstable?

A: It does not. The loop becomes unstable ONLY if there is positive feedback either voltage or phase. For a close loop to be stable negative feedback is required.


Why closed loop control system is much stable than open loop control system?

A Closed loop system basically will have a feedback which enables the rectification of the error in the main process,whereas it is not possible in an open loop system


How are input and feedback parts of a system are related?

They are either in closed or in open loop system


Is the ADH feedback loop an example of positive or negative feedback?

The ADH feedback loop is an example of a negative feedback loop. Negative feedback loops occur when the output of a system acts to oppose the changes to the input of the system. This is the case with ADH because when there is not enough water, the hypothalamus and pituitary gland work to release ADH so that the body can retain more water.


What is it called when the product of a system shuts down the system?

This is known as a feedback loop. When a system's output influences its input in a way that reduces the output, it can lead to the system shutting down or destabilizing. This feedback loop can have either positive (amplifying) or negative (stabilizing) effects on the system.


The process by which the product of a system shuts down the system of limits in its operation is referred to as?

A Negative Feedback Loop.


Why negative feedback is necessary in closed-loop control systems?

Negative feedback is necessary in closed-loop control systems to ensure the system remains stable and responsive to changes. It helps to detect and correct errors, minimizing deviations from the desired output. By providing a means to compare the actual output to the desired reference input, negative feedback allows for adjustments to be made to keep the system operating within desired parameters.


Is the ADH feedback loop an example of positive or negative feedback explain?

The ADH feedback loop is an example of a negative feedback loop. Negative feedback loops occur when the output of a system acts to oppose the changes to the input of the system. This is the case with ADH because when there is not enough water, the hypothalamus and pituitary gland work to release ADH so that the body can retain more water.