An open-loop class-D audio amplifier with increased low-distortion output power and PVT-insensitive EMI reduction

Shih Hsiung Chien; Li Te Wu; Ssu Ying Chen; Ren Dau Jan; Min Yung Shih; Ching Tzung Lin; Tai Haur Kuo

doi:10.1109/CICC.2014.6946068

An open-loop class-D audio amplifier with increased low-distortion output power and PVT-insensitive EMI reduction

Shih Hsiung Chien, Li Te Wu, Ssu Ying Chen, Ren Dau Jan, Min Yung Shih, Ching Tzung Lin, Tai Haur Kuo

Department of Electrical Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

7 Citations (Scopus)

Abstract

An open-loop class-D audio amplifier with the proposed adaptive-coefficient delta-sigma modulator (ACDSM) and low-EMI control method is implemented in a 0.18μm BCD process. Compared with conventional DSMs, the ACDSM simultaneously achieves a wide stable input range and high in-band noise suppression, resulting in a 20% increase of low-distortion output power for open-loop class-D amplifiers without boosting the supply voltage or degrading the THD+N at small output power. Moreover, the proposed low-EMI control method realized by a simple finite state machine eases the PVT-sensitive issues of common-mode EMI reduction.

Original language	English
Title of host publication	Proceedings of the IEEE 2014 Custom Integrated Circuits Conference, CICC 2014
Publisher	Institute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)	9781479932863
DOIs	https://doi.org/10.1109/CICC.2014.6946068
Publication status	Published - 2014 Nov 4
Event	36th Annual Custom Integrated Circuits Conference - The Showcase for Integrated Circuit Design in the Heart of Silicon Valley, CICC 2014 - San Jose, United States Duration: 2014 Sept 15 → 2014 Sept 17

Publication series

Name	Proceedings of the IEEE 2014 Custom Integrated Circuits Conference, CICC 2014

Other

Other	36th Annual Custom Integrated Circuits Conference - The Showcase for Integrated Circuit Design in the Heart of Silicon Valley, CICC 2014
Country/Territory	United States
City	San Jose
Period	14-09-15 → 14-09-17

All Science Journal Classification (ASJC) codes

Electrical and Electronic Engineering

Access to Document

10.1109/CICC.2014.6946068

Cite this

Chien, S. H., Wu, L. T., Chen, S. Y., Jan, R. D., Shih, M. Y., Lin, C. T., & Kuo, T. H. (2014). An open-loop class-D audio amplifier with increased low-distortion output power and PVT-insensitive EMI reduction. In Proceedings of the IEEE 2014 Custom Integrated Circuits Conference, CICC 2014 Article 6946068 (Proceedings of the IEEE 2014 Custom Integrated Circuits Conference, CICC 2014). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/CICC.2014.6946068

Chien, Shih Hsiung ; Wu, Li Te ; Chen, Ssu Ying et al. / An open-loop class-D audio amplifier with increased low-distortion output power and PVT-insensitive EMI reduction. Proceedings of the IEEE 2014 Custom Integrated Circuits Conference, CICC 2014. Institute of Electrical and Electronics Engineers Inc., 2014. (Proceedings of the IEEE 2014 Custom Integrated Circuits Conference, CICC 2014).

@inproceedings{b8ca8bbdd82a4f37b27e59d7ab39e781,

title = "An open-loop class-D audio amplifier with increased low-distortion output power and PVT-insensitive EMI reduction",

abstract = "An open-loop class-D audio amplifier with the proposed adaptive-coefficient delta-sigma modulator (ACDSM) and low-EMI control method is implemented in a 0.18μm BCD process. Compared with conventional DSMs, the ACDSM simultaneously achieves a wide stable input range and high in-band noise suppression, resulting in a 20% increase of low-distortion output power for open-loop class-D amplifiers without boosting the supply voltage or degrading the THD+N at small output power. Moreover, the proposed low-EMI control method realized by a simple finite state machine eases the PVT-sensitive issues of common-mode EMI reduction.",

author = "Chien, {Shih Hsiung} and Wu, {Li Te} and Chen, {Ssu Ying} and Jan, {Ren Dau} and Shih, {Min Yung} and Lin, {Ching Tzung} and Kuo, {Tai Haur}",

note = "Publisher Copyright: {\textcopyright} 2014 IEEE.; 36th Annual Custom Integrated Circuits Conference - The Showcase for Integrated Circuit Design in the Heart of Silicon Valley, CICC 2014 ; Conference date: 15-09-2014 Through 17-09-2014",

year = "2014",

month = nov,

day = "4",

doi = "10.1109/CICC.2014.6946068",

language = "English",

series = "Proceedings of the IEEE 2014 Custom Integrated Circuits Conference, CICC 2014",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

booktitle = "Proceedings of the IEEE 2014 Custom Integrated Circuits Conference, CICC 2014",

address = "United States",

}

Chien, SH, Wu, LT, Chen, SY, Jan, RD, Shih, MY, Lin, CT & Kuo, TH 2014, An open-loop class-D audio amplifier with increased low-distortion output power and PVT-insensitive EMI reduction. in Proceedings of the IEEE 2014 Custom Integrated Circuits Conference, CICC 2014., 6946068, Proceedings of the IEEE 2014 Custom Integrated Circuits Conference, CICC 2014, Institute of Electrical and Electronics Engineers Inc., 36th Annual Custom Integrated Circuits Conference - The Showcase for Integrated Circuit Design in the Heart of Silicon Valley, CICC 2014, San Jose, United States, 14-09-15. https://doi.org/10.1109/CICC.2014.6946068

An open-loop class-D audio amplifier with increased low-distortion output power and PVT-insensitive EMI reduction. / Chien, Shih Hsiung; Wu, Li Te; Chen, Ssu Ying et al.
Proceedings of the IEEE 2014 Custom Integrated Circuits Conference, CICC 2014. Institute of Electrical and Electronics Engineers Inc., 2014. 6946068 (Proceedings of the IEEE 2014 Custom Integrated Circuits Conference, CICC 2014).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

TY - GEN

T1 - An open-loop class-D audio amplifier with increased low-distortion output power and PVT-insensitive EMI reduction

AU - Chien, Shih Hsiung

AU - Wu, Li Te

AU - Chen, Ssu Ying

AU - Jan, Ren Dau

AU - Shih, Min Yung

AU - Lin, Ching Tzung

AU - Kuo, Tai Haur

PY - 2014/11/4

Y1 - 2014/11/4

N2 - An open-loop class-D audio amplifier with the proposed adaptive-coefficient delta-sigma modulator (ACDSM) and low-EMI control method is implemented in a 0.18μm BCD process. Compared with conventional DSMs, the ACDSM simultaneously achieves a wide stable input range and high in-band noise suppression, resulting in a 20% increase of low-distortion output power for open-loop class-D amplifiers without boosting the supply voltage or degrading the THD+N at small output power. Moreover, the proposed low-EMI control method realized by a simple finite state machine eases the PVT-sensitive issues of common-mode EMI reduction.

AB - An open-loop class-D audio amplifier with the proposed adaptive-coefficient delta-sigma modulator (ACDSM) and low-EMI control method is implemented in a 0.18μm BCD process. Compared with conventional DSMs, the ACDSM simultaneously achieves a wide stable input range and high in-band noise suppression, resulting in a 20% increase of low-distortion output power for open-loop class-D amplifiers without boosting the supply voltage or degrading the THD+N at small output power. Moreover, the proposed low-EMI control method realized by a simple finite state machine eases the PVT-sensitive issues of common-mode EMI reduction.

UR - http://www.scopus.com/inward/record.url?scp=84928143344&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84928143344&partnerID=8YFLogxK

U2 - 10.1109/CICC.2014.6946068

DO - 10.1109/CICC.2014.6946068

M3 - Conference contribution

AN - SCOPUS:84928143344

T3 - Proceedings of the IEEE 2014 Custom Integrated Circuits Conference, CICC 2014

BT - Proceedings of the IEEE 2014 Custom Integrated Circuits Conference, CICC 2014

PB - Institute of Electrical and Electronics Engineers Inc.

T2 - 36th Annual Custom Integrated Circuits Conference - The Showcase for Integrated Circuit Design in the Heart of Silicon Valley, CICC 2014

Y2 - 15 September 2014 through 17 September 2014

ER -

Chien SH, Wu LT, Chen SY, Jan RD, Shih MY, Lin CT et al. An open-loop class-D audio amplifier with increased low-distortion output power and PVT-insensitive EMI reduction. In Proceedings of the IEEE 2014 Custom Integrated Circuits Conference, CICC 2014. Institute of Electrical and Electronics Engineers Inc. 2014. 6946068. (Proceedings of the IEEE 2014 Custom Integrated Circuits Conference, CICC 2014). doi: 10.1109/CICC.2014.6946068

An open-loop class-D audio amplifier with increased low-distortion output power and PVT-insensitive EMI reduction

Abstract

Publication series

Other

All Science Journal Classification (ASJC) codes

Access to Document

Other files and links

Fingerprint

Cite this