- Noun: amplifier 'amplu`fIu(r)
- Electronic equipment that increases strength of signals passing through it
Derived forms: amplifiers
See also: amplify
Type of: electronic equipment
Any device that increases the magnitude of an applied signal. It receives an input signal and delivers a larger output signal that, in addition to its increased amplitude, is a replica of the input signal. Also see CURRENT AMPLIFIER, POWER AMPLIFIER, and VOLTAGE AMPLIFIER.
"A device capable of increasing the magnitude or power level of a physical quantity, such as an electric current or a hydraulic mechanical force, that is varying with time, without distorting the wave shape of the quantity."
Electronic devices that increase the strength of an input signal,or apparatus for increasing the magnification of a microscope. (From Dorland,28th ed) n : one that amplifies; specif : an electronic device (as in a computer or sound-reproducing system) for amplifying voltage, current, or power
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- amplifier self-oscillates at a frequency depending on the velocity of the fluid.
- part of the output of an amplifier can be fed back to get rid of sound distortion.
- a facsimile of the original amplifier outputs is then reconstructed inside the computer.
- there is a great deal of demand in modern electronics, however, for bandpass amplifiers.
- while working on a means of reducing amplifier distortion, he devised the negative feedback amplifier.