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What (who) is negative feedback - definition

STABILITY MECHANISM WHICH OCCURS WHEN SOME FUNCTION OF THE OUTPUT OF A SYSTEM, PROCESS, MECHANISM IS FED BACK IN A MANNER THAT TENDS TO REDUCE THE FLUCTUATIONS IN THE OUTPUT, WHETHER CAUSED BY CHANGES IN THE INPUT OR BY OTHER DISTURBANCES

Negative feedback control system; Negative feedback loop; Negative Feedback; Negative-feedback; Reverse feedback; Inverse feedback; Negative feedback inhibition; Servo loop; Single-loop servomechanism; Balancing feedback; Suppressing feedback

negative feedback

¦ noun Electronics feedback that tends to reduce the effect by which it is produced.

Negative-feedback amplifier

Feedback amplifier; Feedback topology; Feedback Topology; Negative feedback amplifier

A negative-feedback amplifier (or feedback amplifier) is an electronic amplifier that subtracts a fraction of its output from its input, so that negative feedback opposes the original signal.

https://en.wikipedia.org/wiki/Negative-feedback_amplifier

feedback

PROCESS IN WHICH INFORMATION ABOUT THE PAST OR THE PRESENT INFLUENCES THE SAME PHENOMENON IN THE PRESENT OR FUTURE; IT OCCURS WHEN OUTPUTS OF A SYSTEM ARE ROUTED BACK AS INPUTS AS PART OF A CHAIN OF CAUSE-AND-EFFECT THAT FORMS A CIRCUIT OR LOOP

Feedback loop; Feedback loops; Feed-back; Sensory feedback; Feedback mechanism; Electronic feedback loop; Feedback circuit; Feedback Inhibition; Fb control; Feedback diagram; Feed back control; Feedback control; Reflexive feedback; Feedback Control; Feedback effect; Electronic feedback loops; Feedback signal

1.

If you get feedback on your work or progress, someone tells you how well or badly you are doing, and how you could improve. If you get good feedback you have worked or performed well.

Continue to ask for feedback on your work...

I was getting great feedback from my boss.

N-UNCOUNT: oft N prep

2.

Feedback is the unpleasant high-pitched sound produced by a piece of electrical equipment when part of the signal that comes out goes back into it.

N-UNCOUNT

Wikipedia

Negative feedback

Negative feedback (or balancing feedback) occurs when some function of the output of a system, process, or mechanism is fed back in a manner that tends to reduce the fluctuations in the output, whether caused by changes in the input or by other disturbances.

Whereas positive feedback tends to lead to instability via exponential growth, oscillation or chaotic behavior, negative feedback generally promotes stability. Negative feedback tends to promote a settling to equilibrium, and reduces the effects of perturbations. Negative feedback loops in which just the right amount of correction is applied with optimum timing can be very stable, accurate, and responsive.

Negative feedback is widely used in mechanical and electronic engineering, and also within living organisms, and can be seen in many other fields from chemistry and economics to physical systems such as the climate. General negative feedback systems are studied in control systems engineering.

Negative feedback loops also play an integral role in maintaining the atmospheric balance in various systems on Earth. One such feedback system is the interaction between solar radiation, cloud cover, and planet temperature.

https://en.wikipedia.org/wiki/Negative feedback

Examples of use of negative feedback

1. This goes beyond the simple negative feedback of tactics races.

2. But they‘ll be screwed by negative feedback if that tambourine isn‘t in Glasgow by the morning.

3. You had a bad review: You received a poor performance rating and a disproportionate amount of negative feedback.

4. "Right now you have a giant negative feedback loop," said Paul Miller, an industry analyst at Friedman, Billings, Ramsey Group.

5. I have been a buyer and seller on ebay, as a buyer I have occassionally received misrepresented goods and when you complain or leave negative feedback, you receive negative feedback as retaliation, so in that respect it is an unfair system.