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Audio Amplifier Circuit, Working, and Applications

October 24, 2019 By WatElectronics

Audio Amplifier Circuit

Audio amplifier is the basic circuit configuration that is required to amplify, the audio signal received through a device like a microphone or the audio signal that is to be transmitted out through a speaker/ Radio device/Wireless transmitter etc. In early stages, in the year around 1912 vaccum tubes where used for audio amplification but at around 1970s it was replaced by BJT  and MOSFETS.  ClassD power amplifiers (which uses transistors/MOSFETS) are the most widely in audio amplification. … [Read more...]

Amplifier – Construction, Working, Types, and Applications

October 22, 2019 By WatElectronics

Common Emitter Amplifier Circuit

An amplifier can be considered as the basic electronic device.  These amplifiers do exist in various types. Based on the operations performed in various modes and the types of configurations used the amplifiers are classified. The basic operation of these devices is to enhance and increase the strength of the applied input signal. Amplifiers can be classified under various categories it may be an operational amplifier, small-signal strength, and large-signal or power amplifiers. These devices … [Read more...]

What is a Common Emitter Amplifier : Working and Its Characteristics

October 3, 2019 By WatElectronics Leave a Comment

Circuit for Common Emitter Amplifier

Common Emitter as an Amplifier is a configuration of the basic Bipolar Junction Transistor (BJT). As it consists of three basic terminals that are base, emitter and the collector but for the input and the output circuit connections it require minimum of four terminals. In order to overcome this drawback a terminal among those three terminals made common so that it behaves in common for both input and output circuitry connections.  When emitter is made common to both input and output then it … [Read more...]

What is Amplifier : Circuit Working and Its Applications

October 1, 2019 By WatElectronics

Transistor as Amplifier

An amplifier is a basic circuit that is obtained from the transistors. These devices are designed in such a way that the transistors with the low value of the input signal are converted in terms of the signals which possess high strength. These are most widely used in the concept of long-distance communication and also at the place where the wireless data transmission is used as the media. These are the basic devices installed in the transmitters and the receivers. As the transistor is common … [Read more...]

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