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Meaning of FEEDBACK

Pronunciation:  'feed`bak

 
Matching Terms:  feedback circuit, feedback control, feedback inhibition, feedback loop

Computing Dictionary
 
 Definition: 

Part of a system output presented at its input. Feedback may be unintended. When used as a design feature, the output is usually transformed by passive components which attenuate it in some manner; the result is then presented at the system input.

Feedback is positive or negative, depending on the sign with which a positive change in the original input reappears after transformation. Negative feedback was invented by Black to stabilise vacuum tube amplifiers. The behaviour becomes largely a function of the feedback transformation and only minimally a function of factors such as transistor gain which are imperfectly known.

Positive feedback can lead to instability; it finds wide application in the construction of oscillators.

Feedback can be used to control a system, as in feedback control.

 
Thesaurus Terms
 
 Related Terms: birdies, blooping, blurping, closed loop, closed sequence, current-control circuit, degeneration, distortion, flip-flop circuit, flutter, fluttering, hissing, howling, hum, motorboating, positive feedback, process loop, quality loop, reversed feedback, rumble, scratching, shredding, squeals, static, whistles, woomping, wow, wowwows
 

 

 

 

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