Multistage amplifiers generally utilize which configuration in their output stage _________________?
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Answer: A. Push-pull amplifier
Explanation
Push-pull output stages combine two active devices operating in complementary phases to deliver high load power efficiently. This configuration cancels out even-order harmonic distortion while providing substantial current amplification to speakers or loads. Multistage amplifiers rely on push-pull output topologies to maximize efficiency and maintain low signal distortion levels. A push-pull amplifier uses two symmetric transistor branches where one pushes current and the other pulls current through the load. Output stages represent the final amplification tier responsible for driving external loads with adequate voltage and current. Class B and Class AB biasing schemes are standardly implemented within push-pull transistor output stage architectures.
Preamplifiers are designed for low-level voltage amplification rather than providing high-power output stage driving capabilities. Class A power amplifiers suffer from poor power efficiency making them less suitable for high-power multistage output stages. None of the above is incorrect because the push-pull amplifier is universally used in output stages for efficiency.
- Subject
- Engineering
- Category
- Electrical Engineering
- Topic
- —
- Difficulty
- medium
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