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E7B02:What is a Class D amplifier?

E7B02E7B

What is a Class D amplifier?

Direct answer summary (2024-2028 NCVEC pool)

The official correct answer for E7B02 is An amplifier that uses switching technology to achieve high efficiency.

The key fact is An amplifier that uses switching technology to achieve high efficiency. Match that fact to the exact condition in the question; the other choices describe a different rule, band, component, or operating situation.

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More questions in E7B

E7B01For what portion of the signal cycle does each active element in a push-pull, Class AB amplifier conduct?E7B03What circuit is required at the output of an RF switching amplifier?E7B04What is the operating point of a Class A common emitter amplifier?E7B05What can be done to prevent unwanted oscillations in an RF power amplifier?E7B06What is a characteristic of a grounded-grid amplifier?E7B07Which of the following is the likely result of using a Class C amplifier to amplify a single-sideband phone signal?