Which of the power amplifiers has the lowest overall efficiency?

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Electronic Devices and Circuits Practice Test: Differential and Multistage Amplifiers — practice the complete quiz, review flashcards, or try a random question.

Differential and Multistage Amplifiers topics include: input bias, voltage, current, multistage and differential amplifiers, feedback structure and negative feedback properties, transconductance and transresistance amplifiers, a, b and ab output stages, feedback effects, power bjts, heat sinks and variations in ab classification. Here are some differences between differential and multistage amplifiers: Differential amplifier: An electronic amplifier that amplifies the difference between two input voltages, while suppressing any voltage common to the two inputs. It's an analog circuit with... Show more

Which of the power amplifiers has the lowest overall efficiency?