Understanding Power Amplifiers in Analog Circuits

This chapter focuses on power amplifiers in analog circuits, analyzing circuits that deliver power to loads efficiently while maintaining linearity in the output signal. It discusses power dissipation in transistors, particularly in the output stage, and the importance of managing heat generation. Classifications of power amplifiers based on transistor operation are explored, with a detailed look at Class-B operation including circuit structure, operating principles, and selecting appropriate power BJTs. The chapter also includes an example to illustrate the concepts discussed.

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