Electronic Circuit Analysis

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Chapter 9 FET and MOSFET Amplifiers

Learning Objectives

Design and analysis of FET and MOSFET Amplifiers
CS, CG and CD FET Amplifiers
CS, CG, CD MOSFET Amplifiers

9.1 AMPLIFIER GAIN USING DECIBELS

Amplifiers using Vacuum Tube, BJT, FET and MOSFET amplify signals. One simple application is Audio Amplifier in Public Address system (Fig. 9.1). Microphone converts Audio signal into electrical signal, which is amplified by the Amplifier. Its output is connected to a loud speaker. Final output is an audio signal. Amplified sound from the speaker is utilised in public gatherings, large auditoriums or conference rooms.

Fig. 9.1 Audio amplifier ...

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