It is a direct-current amplifier in which the dc input signal is filtered by a low-pass filter, then used to modulate a carrier so it can be amplified conventionally as an alternating-current signal; the amplified dc output is obtained by rectifying and filtering the rectified carrier signal.
an amplifier with a narrow band pass used to tune into a carrier signal.
The classic AM transmitter layout is a master oscillator, followed by a "pen", or penultimate amplifier, followed by a PA or power amplifier. The master oscillator, which is probably crystal controlled, generates the carrier frequency.
Ah, a carrier amplifier is like a gentle breeze that carries the beautiful colors of your signal through the canvas of your audio system. It helps boost the strength of your signal so it can travel far and wide, spreading joy and harmony wherever it goes. Just like adding a touch of white to your painting to make the colors pop, a carrier amplifier enhances the beauty of your audio experience.
An oscillator that establishes the carrier frequency of the output of an amplifier or transmitter.Source : Answers.com
Online you can buy a cellular phone amplifier at Amazon. Offline or online try Best Buy or another electronics retailer. Also try a mobile phone store for a specific carrier.
When a pulse is amplified in a linear amplifier, the charge carrier transit time can introduce a delay in the output signal, affecting the fidelity of the amplification. This delay can lead to distortion, particularly at high frequencies, as the response time of the charge carriers becomes significant relative to the pulse duration. Additionally, variations in transit times among different charge carriers can cause further signal degradation, impacting the overall performance of the amplifier.
Darlington amplifier has more gain when compared to cascade amplifier .
1.differential amplifier 2.operational amplifier 3.instrumentation amplifier 4.chopper amplifier 5.isolation amplier
current series feedback amplifier=series parallel feedback amplifier or voltage to current amplifier,or TRANS CONDUCTANCE AMPLIFIER.
Selective amplifier is an RF amplifier which selects particular frequency and amplifier so it can operate at fixed frequency.
A voltage amplifier does not have to supply significant current bur a power amplifier does.
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