negative feedback

n 1. (General Engineering) See feedback 2. (Electronics) See feedback

Thesaurus

Noun

negative feedback - feedback in opposite phase with (decreasing) the inputfeedback - the process in which part of the output of a system is returned to its input in order to regulate its further output

Translations

negative feedback

[′neg·əd·iv ′fēd‚bak] (control systems) Feedback in which a portion of the output of a circuit, device, or machine is fed back 180° out of phase with the input signal, resulting in a decrease of amplification so as to stabilize the amplification with respect to time or frequency, and a reduction in distortion and noise. Also known as inverse feedback; reverse feedback; stabilized feedback. (science and technology) Feedback which tends to reduce the output in a system.

negative feedback

see SYSTEMS THEORY.

negative feedback

neg·a·tive feed·back

that which occurs if the sign or sense of the returned signal results in reduced amplification.

negative feedback

A control entity in which part of the response to the stimulus, acting in opposition to it, is applied to the stimulus. In other words, in a system with an input and an output, a proportion of the output signal, which must be in opposite phase to the input signal, is carried back to join and modify the input signal, reducing the effect of distortional changes caused by the system. The feedback signal is usually much smaller than the input stimulus, but exerts a powerful stabilizing and linearizing effect on the whole system. Negative feedback, long used to improve the stability and quality of electronic circuits, is now known to be an important principle in a wide range of biological and physiological systems.

negative feedback

See FEEDBACK MECHANISM.

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neg·a·tive feed·back

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Words related to negative feedback

noun feedback in opposite phase with (decreasing) the input

Related Words