Low frequency dithering technique for linearization of voltage mode class-D amplifiers

F.A. Malekzadeh; R. Mahmoudi; A.H.M. Roermund, van

doi:10.1109/PAWR.2013.6490187

Low frequency dithering technique for linearization of voltage mode class-D amplifiers

F.A. Malekzadeh
, R. Mahmoudi
, A.H.M. Roermund, van

Integrated Circuits

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

Abstract

This paper introduces a novel technique for simultaneous linearity and efficiency enhancement of class-D amplifiers by combining a low frequency sinusoid, known as dither, with a bandpass signal. The proposed technique improves the linearity due to dither averaging effect, and power efficiency, due to the reduction of reactive loss. The feasibility of the idea is verified through realization and measurement of a 65 nm TSMC CMOS voltage mode class-D amplifier operating at 1 GHz. The drain efficiency is enhanced from 19.2 to 37 percent, while providing ACPR of - 33 dBc for the first adjacent WCDMA channel.

Original language	English
Title of host publication	Proceedings of the IEEE topical conference on power amplifiers for wireless and radio applications (PAWR 2013) : 16-19 January 2013, Austin, Texas
Place of Publication	Piscataway
Publisher	Institute of Electrical and Electronics Engineers
Pages	55-57
ISBN (Print)	978-1-4673-2931-6
DOIs	https://doi.org/10.1109/PAWR.2013.6490187
Publication status	Published - 2013
Event	conference; IEEE Topical Conference on Power Amplifiers for Wireless and Radio Applications 2013 (PAWR 2013); 2013-01-16; 2013-01-19 - Duration: 16 Jan 2013 → 19 Jan 2013

Conference

Conference	conference; IEEE Topical Conference on Power Amplifiers for Wireless and Radio Applications 2013 (PAWR 2013); 2013-01-16; 2013-01-19
Period	16/01/13 → 19/01/13
Other	IEEE Topical Conference on Power Amplifiers for Wireless and Radio Applications 2013 (PAWR 2013)

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10.1109/PAWR.2013.6490187

Cite this

Malekzadeh, F. A., Mahmoudi, R., & Roermund, van, A. H. M. (2013). Low frequency dithering technique for linearization of voltage mode class-D amplifiers. In Proceedings of the IEEE topical conference on power amplifiers for wireless and radio applications (PAWR 2013) : 16-19 January 2013, Austin, Texas (pp. 55-57). Institute of Electrical and Electronics Engineers. https://doi.org/10.1109/PAWR.2013.6490187

Malekzadeh, F.A. ; Mahmoudi, R. ; Roermund, van, A.H.M. / Low frequency dithering technique for linearization of voltage mode class-D amplifiers. Proceedings of the IEEE topical conference on power amplifiers for wireless and radio applications (PAWR 2013) : 16-19 January 2013, Austin, Texas. Piscataway : Institute of Electrical and Electronics Engineers, 2013. pp. 55-57

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title = "Low frequency dithering technique for linearization of voltage mode class-D amplifiers",

abstract = "This paper introduces a novel technique for simultaneous linearity and efficiency enhancement of class-D amplifiers by combining a low frequency sinusoid, known as dither, with a bandpass signal. The proposed technique improves the linearity due to dither averaging effect, and power efficiency, due to the reduction of reactive loss. The feasibility of the idea is verified through realization and measurement of a 65 nm TSMC CMOS voltage mode class-D amplifier operating at 1 GHz. The drain efficiency is enhanced from 19.2 to 37 percent, while providing ACPR of - 33 dBc for the first adjacent WCDMA channel.",

author = "F.A. Malekzadeh and R. Mahmoudi and \{Roermund, van\}, A.H.M.",

year = "2013",

doi = "10.1109/PAWR.2013.6490187",

language = "English",

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booktitle = "Proceedings of the IEEE topical conference on power amplifiers for wireless and radio applications (PAWR 2013) : 16-19 January 2013, Austin, Texas",

publisher = "Institute of Electrical and Electronics Engineers",

address = "United States",

note = "conference; IEEE Topical Conference on Power Amplifiers for Wireless and Radio Applications 2013 (PAWR 2013); 2013-01-16; 2013-01-19 ; Conference date: 16-01-2013 Through 19-01-2013",

}

Malekzadeh, FA, Mahmoudi, R & Roermund, van, AHM 2013, Low frequency dithering technique for linearization of voltage mode class-D amplifiers. in Proceedings of the IEEE topical conference on power amplifiers for wireless and radio applications (PAWR 2013) : 16-19 January 2013, Austin, Texas. Institute of Electrical and Electronics Engineers, Piscataway, pp. 55-57, conference; IEEE Topical Conference on Power Amplifiers for Wireless and Radio Applications 2013 (PAWR 2013); 2013-01-16; 2013-01-19, 16/01/13. https://doi.org/10.1109/PAWR.2013.6490187

Low frequency dithering technique for linearization of voltage mode class-D amplifiers. / Malekzadeh, F.A.; Mahmoudi, R.; Roermund, van, A.H.M.
Proceedings of the IEEE topical conference on power amplifiers for wireless and radio applications (PAWR 2013) : 16-19 January 2013, Austin, Texas. Piscataway: Institute of Electrical and Electronics Engineers, 2013. p. 55-57.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

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AB - This paper introduces a novel technique for simultaneous linearity and efficiency enhancement of class-D amplifiers by combining a low frequency sinusoid, known as dither, with a bandpass signal. The proposed technique improves the linearity due to dither averaging effect, and power efficiency, due to the reduction of reactive loss. The feasibility of the idea is verified through realization and measurement of a 65 nm TSMC CMOS voltage mode class-D amplifier operating at 1 GHz. The drain efficiency is enhanced from 19.2 to 37 percent, while providing ACPR of - 33 dBc for the first adjacent WCDMA channel.

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BT - Proceedings of the IEEE topical conference on power amplifiers for wireless and radio applications (PAWR 2013) : 16-19 January 2013, Austin, Texas

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Malekzadeh FA, Mahmoudi R, Roermund, van AHM. Low frequency dithering technique for linearization of voltage mode class-D amplifiers. In Proceedings of the IEEE topical conference on power amplifiers for wireless and radio applications (PAWR 2013) : 16-19 January 2013, Austin, Texas. Piscataway: Institute of Electrical and Electronics Engineers. 2013. p. 55-57 doi: 10.1109/PAWR.2013.6490187

Low frequency dithering technique for linearization of voltage mode class-D amplifiers

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