What factor is given the highest priority when designing a power amplifier __________________?
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Answer: B. Collector efficiency
Explanation
Collector efficiency directly determines how effectively a power amplifier converts DC supply power into useful AC output power. Maximizing this efficiency reduces internal thermal dissipation and prevents overheating of the active transistor devices. High collector efficiency ensures optimal performance and prevents excessive energy wastage in high-power electronic transmitter systems. Power amplifiers are electronic circuits designed to deliver significant signal power to a load like a loudspeaker or antenna. Collector efficiency is calculated as the ratio of AC signal power delivered to the load versus DC power consumed. Different amplifier classes, such as Class A or Class B, offer widely varying theoretical maximum collector efficiency limits.
Biasing the circuit is an important setup procedure but remains secondary to achieving the desired overall collector efficiency. Keeping the transformer cool is a thermal management concern resulting directly from inadequate collector efficiency design choices. The none of the above option is incorrect because collector efficiency is universally recognized as a primary design priority.
- Subject
- Engineering
- Category
- Electrical Engineering
- Topic
- —
- Difficulty
- medium
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