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Published in:
2021 | OriginalPaper | Chapter
9. Power Amplifiers
Authors : Stephan J. G. Gift, Brent Maundy
Published in: Electronic Circuit Design and Application
Publisher: Springer International Publishing
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Abstract
An amplifier is a device for receiving a signal at its input and delivering a larger signal at its output. They are used in a wide range of applications including music systems, in driving industrial loads, and elsewhere. In small-signal amplifiers, the active devices are operated such that the voltage and current changes are small and the devices are operated in their approximately linear regions. In such amplifiers, the main factors are amplifier linearity, gain and noise performance.