positive-feedback amplifier

См. также в других словарях:

• Positive feedback — Alarm or panic can spread by positive feedback among a herd of animals to cause a stampede. Positive feedback is energy taken from the output of a system and reapplied to the input, which is phase congruent with the input signal. A system… …   Wikipedia

• Feedback (disambiguation) — Feedback is information about actions returned to the source of the actions. To request for feedback on new articles and major edits go .Feedback may also refer to: * Positive feedback, a feedback system that responds to perturbation in the same… …   Wikipedia

• Feedback — For other uses, see Feedback (disambiguation). Feedback describes the situation when output from (or information about the result of) an event or phenomenon in the past will influence an occurrence or occurrences of the same (i.e. same defined)… …   Wikipedia

• feedback — 01. The only [feedback] I got back from my coach after the game was that I was too slow. 02. After Ken presented his plan to his co workers at their weekly meeting, he asked everyone for [feedback] that would help him to improve the project. 03.… …   Grammatical examples in English

• feedback — /ˈfidbæk / (say feedbak) noun 1. the returning of a part of the output of any system, especially a mechanical, electronic, or biological one, as input, especially for correction or control purposes, to alter the characteristic sound of… …  

• Feedback (song) — Infobox Single Name = Feedback Artist = Janet Jackson Album = Discipline Released = December 29, 2007 Format = Digital download, CD, 12 Recorded = 2007 Genre = Dance pop, R B Length = 3:56 (radio edit/single version) 3:38 (album version) Label =… …   Wikipedia

• feedback — noun (U) 1 advice, criticism etc about how successful or useful something is: Most of the feedback we ve received so far has been positive. 2 an unpleasant high noise heard when a microphone is too close to an amplifier …   Longman dictionary of contemporary English

• Operational amplifier — A Signetics μa741 operational amplifier, one of the most successful op amps. An operational amplifier ( op amp ) is a DC coupled high gain electronic voltage amplifier with a differential input and, usually, a single ended output.[1] An op amp… …   Wikipedia

• Electronic amplifier — A practical amplifier circuit An electronic amplifier is a device for increasing the power of a signal. It does this by taking energy from a power supply and controlling the output to match the input signal shape but with a larger amplitude. In… …   Wikipedia

• Valve RF amplifier — A valve RF amplifier (UK and Aus.) or tube amplifier (U.S.), is a device for electrically amplifying the power of an electrical , typically (but not exclusively) radio frequency signals.Low to medium power valve amplifiers for frequencies below… …   Wikipedia

• Negative feedback — Most endocrine hormones are controlled by a physiologic negative feedback inhibition loop, such as the glucocorticoids secreted by the adrenal cortex. The hypothalamus secretes corticotropin releasing hormone (CRH), which directs the anterior… …   Wikipedia