Welcome to the Amplifiers!
In electronics, an amplifier is an electronic device or circuit which is used to increase the magnitude of the signal (a time-varying voltage or current) applied to its input. When you get to know amplifiers and work with them, you may wonder what exactly is the amplifier? How does it works?
It is a two-port electronic circuit that uses electric power from a power supply to increase the amplitude of a signal applied to its input terminals, producing a proportionally greater amplitude signal at its output. Amplifiers have many properties include analog-to-digital conversion, common-mode voltage, negative feedback, single supply, frequency compensation, input offset voltage, open-loop, closed loop, finite gain, bandwidth, efficiency, temperature effects and so on. These amplifier properties can be important to take consideration depending on the applications.
Whenever you are working on circuits containing amplifiers, they belong to discrete (built from individual transistors or tubes/valves), IC (fabricated in an Integrated circuit) — most common, and hybrid type depending on their constructions, such as operational amplifier, differential amplifier, power amplifier, distributed amplifiers, switched mode amplifiers, negative resistance amplifiers etc.
In addition, all amplifiers include some form of active device: this is the device that does the actual amplification. The active device can be a vacuum tube, discrete solid state component, such as a single transistor, or part of an integrated circuit, as in an op-amp).
There are a lot of different amplifier types, all with their own applications, characteristics and construction. This page lists the different amplifier types which are described on the amplifier guide.
Amplifiers can be used in a host of different circuits and applications. No one class of operation is “better” or “worse” than any other class with the type of operation being determined by the use of the amplifying circuit. There are typical maximum conversion efficiencies for the various types or class of amplifier.
For example, Op Amps in different circuits where their attributes of high gain, high input impedance, low output impedance, and a differential input enable them to provide high performance circuits, which depend on their unique features based on differnet types.
The process of circuit design can cover systems ranging from complex electronic systems all the way down to the individual amplifiers within an integrated circuit.
By op amps, op amp applications, basic op amp circuits, technique parameters
Ⅰ. IntroductionAn operational amplifier, or op-amp for short, is fundamentally a voltage amplifying device designed to be used with external feedback components such as resistors and capacitors between its output and input terminals. Learn more about the most common characteristics, essent...
By op amps basics, inverting, non-inverting, electronic circuits
IntoductionAn operational amplifier, or op-amp for short is a DC-coupled high-gain electronic voltage amplifier with a differential input and, usually, a single-ended output. In this configuration, an op-amp produces an output potential that is typically hundreds of thousands of times larger than th...
By op amp, non inverting, inverting, amplifiers
Ⅰ. IntroductionIn electronics, an operational amplifier is a circuit unit with a very high amplification factor. In the actual circuit, usually combined with the feedback network to form a certain functional module. It is an electronic device with a special coupling circuit and feedback. T...
By amplifiers, electronic amplifier, basic amp circuit, current amplifier, amplifier circuits, amp circuit
Although there are many types of amplifiers, different amplifiers are suitable for interfacing with different types of sensors, but most complex amplifiers are built by combining operational amplifiers. In almost cases today, op amps are configured in different ways using a feedback network to ...
By electronic, semiconductors, amplifiers, op amps
Introduction This video explains the three golden rules when working with OpAmps and how to use them in order to understand and build all kind of OpAmp circuits. The main focus will be the noninverting and inverting amplifier and the comparator circuit.Operatio...
By audio power amplifier, amplifiers, power aplifier, electronics, electricity
Making an Audio Power AmplifierArticle CoreAudio Power AmplifierIntroductionOperational PrinciplePrimary ClassificationIntroductionClassifications Class A Amplifiers Class B Amplifiers Class AB Amplifiers Class D Amplifiers AdvantagesSummary Class T...
By semiconductors, electronics, amplifier, amplifiers, op amp
An amplifier is a device that amplifies the voltage or power of an input signal, consisting of tubes or transistors, power transformers, and other electrical components. Used in communications, broadcasting, radar, television, automatic control and other devices.Op-amps are the backbone of analog ci...
By Operational Amplifier
Warm hints: This article contains about 6000 words and reading time is about 22 mins.IntroductionThe operational amplifier is referred to as an op amp. It was named "Operational Amplifier" because it was used in analog computers in the early days to implement mathematical operations. Mainl...
By Power Amplifier,Power Amplifier Working Principle,Classification of Power Amplifier,power amplifier classes
Warm hints: The word in this article is about 3000 words and the reading time is about 15 minutes.SummaryIn this article, we will mainly talks about how power amplifier works and its classes and indicators. Nowadays, whether in the global mobile communication system, the third generation mobile comm...
By Operational Amplifier Characteristics,Operational Amplifier,Operational Amplifier Classification,Operational Amplifier types,Operational Amplifier main parameters
Warm hints: The word in this article is about 3500 and reading time is about 18 minutes.SummaryIt has been more than 40 years since the analog operational amplifier was born. The earliest process is the use of silicon NPN process, later improved to silicon NPN-PNP process (hereafter called standard ...