Efficiency of low power audio amplifiers and loudspeakers

Research output: Chapter in Book/Report/Conference proceedingConference Contribution (Conference Proceeding)


This paper looks at the load presented to audio amplifiers by real transducers. We consider the power losses in class-AB and class-D amplifier topologies, and determine that in order to predict the efficiency it is necessary to consider the amplifier/transducer combination. The ability of the class-D amplifier to recycle quadrature load current offers new ways to improve efficiency.
Translated title of the contributionEfficiency of low power audio amplifiers and loudspeakers
Original languageEnglish
Title of host publication20th International Conference on Consumer Electronics, ICCE 2001, Los Angeles, USA, 19-21 June
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Pages322 - 323
Number of pages2
ISBN (Print)0780366220
Publication statusPublished - 19 Jun 2001

Bibliographical note

Conference Organiser: IEEE

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