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Preamplifier : Circuit, Working, Types, Differences & Its Applications

January 31, 2023 By WatElectronics

Preamplifier

An amplifier is a device used to amplify the power of the output signal, although with some additional noise whereas a preamplifier is a device used to change a weak electrical signal into a noise-tolerant clear output signal. These two amplifiers utilize voltage to enhance the power of sound signals, and although they perform it in different ways & they have different functions. When preamplifiers are normally used to increase the microphone recordings level without increasing its noise … [Read more...]

What is Class D Amplifier : Working, Types, Characteristics & Benefits

July 2, 2022 By WatElectronics

Class D Type Amplifier Block Diagram

The initial invention of the class D amplifier took place in the year 1950 by Alec Reeves, but the device was actually called by the name class D in 1955. The first IC-based class D amplifier was introduced by Tripath in the year 1996 and this version was widespread across various domains. The need for class D amplifiers such as minimal power dissipation when compared with other topologies like class A, class AB and class B allowed class D to use in multiple applications. Also, minimal circuit … [Read more...]

What is Low Noise Amplifier : Working, Types, Design & Its Applications

June 10, 2022 By WatElectronics

Low Noise Amplifier

In a communication system, a low noise amplifier or LNA is an essential component in the receiver section. The main role of this amplifier is to amplify the weak signal by keeping the noise as small as possible. The performance of this amplifier can be measured most particularly by considering different factors like its noise figure, gain, dynamic range, matching, stability, and return loss. These amplifiers play a key role in millimeter-wave applications like passive remote sensing, Earth … [Read more...]

What is a Differential Amplifier : Design & Its Applications

October 3, 2021 By WatElectronics

Differential Amplifier with Op-Amp

The differential amplifier is a basic operational amplifier that consists of three basic terminals. Among those, two are of input that is inverting and the non-inverting terminals. Hence, these amplifiers are the circuits that can perform various operations mainly it is the difference between the two applied input signals. The most important factor gain is applicable here for both the applied input signals.  Hence this concept of application leads to the elimination of the noise quantity from … [Read more...]

What is Stagger Tuned Amplifier & Its Working

April 30, 2021 By WatElectronics

Stagger Tuned Amplifier

The theory of modern electronics is based on amplification, which is achieved using the circuit called the amplifier circuit. As we know, the gain of the amplifier is not varied according to the signal frequency. Hence, to amplify and select the desired range of frequency a tuned amplifier circuit is needed. An amplifier circuit, which is used to amplify the desired range of frequency or a narrow band range of frequencies and rejects all other frequencies known as tuned amplifiers. To amplify … [Read more...]

What are Clippers and Clampers & Their Working

January 23, 2021 By WatElectronics

Clippers and Clampers

There are many electronic circuits that are used for signal transmission. It can be an amplifier or modulator or it might be anything related to the signal strength enhancement. These devices are known for accepting the signal at a certain defined range of voltages.  If the signal applied has an amplitude value greater than that of the range described this results in distortion or it may destroy the components present in the circuit.  There is another problem related to signals that are their … [Read more...]

All about Amplifiers and their Workings

January 5, 2021 By admin

An amplifier is one of the most commonly used electronic devices in the world. It's a basic building block of a vast number of circuits, and comes in various forms. 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. Amplification is never … [Read more...]

Know about Klystron Amplifier Types with Applications

January 5, 2021 By admin

The term “Klystron amplifier” was designed by two brothers, namely Sigurd Varian and Russell at Stanford University.The prototype and the demonstration of this amplifier is finished successfully on 30th august 1937 and published in the year 1939. News of the klystron amplifier was influenced by the US and UK researchers which are working on radar device. These amplifiers are one type of microwave vacuum tubes which are used as an amplifiers in some radar devices as amplifiers. These amplifiers … [Read more...]

What is an Op Amp Differentiator : Circuit & Its Working

November 13, 2020 By WatElectronics

Op Amp Differentiator Diagram

An operational amplifier or Op-Amp is a linear device that is used in ideal DC amplification, signal conditioning, filtering, and also in mathematical operations like addition, subtraction, integration, and differentiation. Op-amp is a voltage amplifying device which is having external feedback components such as capacitors and resistors between output and input terminals. The feedback components presenting in Op-Amp are useful to carry on the operation in an efficient way. An Op-Amp is a … [Read more...]

What is Common Source Amplifier : Working & Its Applications

July 17, 2020 By WatElectronics

Common Source Amplifier

In electronic circuits, amplifiers are used to increase the strength or amplitude of the input signal without any phase change and frequency. Amplifier circuits are made up of either FET (Fied Effect Transistor) or normal bipolar junction transistor-based on their 3 terminals. The advantage of amplifier circuit using FET over BJTs is used as small-signal amplifiers because they produce high input impedance, high voltage gain, and low noise in the input signal. FET is a voltage-controlled device … [Read more...]

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