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amplifier    音标拼音: ['æmpləf,ɑɪɚ]
n. 扩大的人(物),增幅器,扩大器

扩大的人(物),增幅器,扩大器

amplifier
放大器


amplifier
放大器 AR

amplifier
放大器

amplifier
n 1: electronic equipment that increases strength of signals
passing through it

Amplifier \Am"pli*fi`er\, n.
One who or that which amplifies.
[1913 Webster]


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  • Amplifier - Wikipedia
    An amplifier, electronic amplifier or (informally) amp is an electronic device that can increase the magnitude of a signal (a time-varying voltage or current) It is a two-port electronic circuit that uses electric power from a power supply to increase the amplitude (magnitude of the voltage or current) of a signal applied to its input
  • Introduction to the Amplifier - Basic Electronics Tutorials and Revision
    An amplifier is an electronic device or circuit which is used to increase the magnitude of the signal applied to its input Amplifier is the generic term used to describe a circuit which produces and increased version of its input signal
  • Amazon. com: Amplifier
    AIYIMA A70 Balanced Stereo Amplifier with PFFB,TPA3255 2 Channel Class D Amp for Desktop Home Theater Bookshelf Speaker,with XLR RCA Inputs Trigger Input (A70 + DC48V 5A Power Adapter)
  • Best stereo amplifiers 2025: 9 class leaders chosen by our review . . .
    A stereo amplifier is the beating heart of any hi-fi separates system – the component that necessarily amplifies the audio signals from your source (CD player, turntable, music streamer, etc) to an output that your passive speakers can deliver
  • Amplifiers: Home Audio Amp - Best Buy
    An audio amplifier takes the low voltage signal from a source — like a Blu-ray or DVD player, turntable or microphone — and increases it (amplifies it) so that it is strong enough to power sound from your speakers The best amplifier for you depends on the needs of your sound system
  • How does an amplifier work? - Explain that Stuff
    An amplifier's job is to turn a small electric current into a larger one, and there are various different ways to achieve this depending on exactly what you're trying to do If you want to boost a reasonably constant electric voltage, you can use an electromagnetic device called a transformer
  • What is an Amplifier? - Definition from WhatIs. com - TechTarget
    An amplifier is an electronic device that increases the voltage, current, or power of a signal Amplifiers are used in wireless communications and broadcasting, and in audio equipment of all kinds They can be categorized as either weak-signal amplifiers or power amplifiers
  • How Amplifiers Work - HowStuffWorks
    Amplifiers create a pathway for electric charge to flow by manipulating zones of free electrons and holes, enhancing audio signals for output to speakers When people refer to "amplifiers," they're usually talking about stereo components or musical equipment But this is only a small representation of the spectrum of audio amplifiers
  • Amplifier | Audio, Signal Processing Volume Control | Britannica
    amplifier, in electronics, device that responds to a small input signal (voltage, current, or power) and delivers a larger output signal that contains the essential waveform features of the input signal
  • Types of Amplifiers : Circuits, Working Their Applications
    Amplifiers can be defined simply as an electronic device that increases the power of a signal In other words, it increases the amplitude of a signal, and makes it stronger than the given input Although this sounds simple in theory, amplifiers have a lot of parameters and conditions in the real world





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