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Amplifier Circuits: Types, Characteristics and Applications

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Added on  2023-06-10

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This presentation covers the basics of amplifier circuits, including their types, characteristics, and applications. It explains the working of BJT, FET, and OP-AMP amplifiers, along with their different configurations. The presentation also covers the concept of feedback amplifiers and oscillators, and their applications in various electronic devices.

Amplifier Circuits: Types, Characteristics and Applications

   Added on 2023-06-10

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Amplifier Circuits
Amplifier Circuits: Types, Characteristics and Applications_1
It is an electronic device
It is used to increase an amplitude of the
input signal
It is a two-port network that provides a
high amplitude signal
There are many applications of an
amplifier such as the audio amplifier,
video amplifier, and increase an amplitude
of an input signal(Karris, 2008).
Amplifiers
Amplifier Circuits: Types, Characteristics and Applications_2
Based on manufacturing amplifiers can be
classified into three categories such as-
BJT amplifier
FET amplifier
OP-AMP amplifier
Types of Amplifiers
Amplifier Circuits: Types, Characteristics and Applications_3
It is a bipolar junction transistor
It uses both types of charge
carrier such as electron, and
hole
It can be used as a switch and
amplifier
There are three terminals in BJT
emitter, base, and collector
Mode of operation-
Active region (used as an
amplifier)
Cut off region (used as a switch)
Saturation region (used as a
switch)
BJT Amplifier Fig.- BJT Amplifier
(Source: Electric
Engineering, 2014)
Amplifier Circuits: Types, Characteristics and Applications_4

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