Efficiency of low power audio amplifiers and loudspeakers

SG Burrow; DA Grant

doi:10.1109/ICCE.2001.935328

Efficiency of low power audio amplifiers and loudspeakers

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

Abstract

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 contribution	Efficiency of low power audio amplifiers and loudspeakers
Original language	English
Title of host publication	20th International Conference on Consumer Electronics, ICCE 2001, Los Angeles, USA, 19-21 June
Publisher	Institute of Electrical and Electronics Engineers (IEEE)
Pages	322 - 323
Number of pages	2
ISBN (Print)	0780366220
DOIs	https://doi.org/10.1109/ICCE.2001.935328
Publication status	Published - 19 Jun 2001

Bibliographical note

Conference Organiser: IEEE

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http://ieeexplore.ieee.org/search/wrapper.jsp?arnumber=935328

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@inproceedings{0e2e689987274b25831cba846de3fbb3,

title = "Efficiency of low power audio amplifiers and loudspeakers",

abstract = "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.",

author = "SG Burrow and DA Grant",

note = "Conference Organiser: IEEE",

year = "2001",

month = jun,

day = "19",

doi = "10.1109/ICCE.2001.935328",

language = "English",

isbn = "0780366220",

pages = "322 -- 323",

booktitle = "20th International Conference on Consumer Electronics, ICCE 2001, Los Angeles, USA, 19-21 June",

publisher = "Institute of Electrical and Electronics Engineers (IEEE)",

address = "United States",

}

Efficiency of low power audio amplifiers and loudspeakers. / Burrow, SG ; Grant, DA.
20th International Conference on Consumer Electronics, ICCE 2001, Los Angeles, USA, 19-21 June. Institute of Electrical and Electronics Engineers (IEEE), 2001. p. 322 - 323.

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

TY - GEN

T1 - Efficiency of low power audio amplifiers and loudspeakers

AU - Burrow, SG

AU - Grant, DA

N1 - Conference Organiser: IEEE

PY - 2001/6/19

Y1 - 2001/6/19

N2 - 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.

AB - 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.

U2 - 10.1109/ICCE.2001.935328

DO - 10.1109/ICCE.2001.935328

M3 - Conference Contribution (Conference Proceeding)

SN - 0780366220

SP - 322

EP - 323

BT - 20th International Conference on Consumer Electronics, ICCE 2001, Los Angeles, USA, 19-21 June

PB - Institute of Electrical and Electronics Engineers (IEEE)

ER -

Efficiency of low power audio amplifiers and loudspeakers

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