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

研究成果: Conference contribution

2 引文 斯高帕斯(Scopus)

摘要

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.

原文English
主出版物標題Proceedings of the IEEE 2014 Custom Integrated Circuits Conference, CICC 2014
發行者Institute of Electrical and Electronics Engineers Inc.
ISBN(電子)9781479932863
DOIs
出版狀態Published - 2014 十一月 4
事件36th Annual Custom Integrated Circuits Conference - The Showcase for Integrated Circuit Design in the Heart of Silicon Valley, CICC 2014 - San Jose, United States
持續時間: 2014 九月 152014 九月 17

出版系列

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

Other

Other36th Annual Custom Integrated Circuits Conference - The Showcase for Integrated Circuit Design in the Heart of Silicon Valley, CICC 2014
國家United States
城市San Jose
期間14-09-1514-09-17

    指紋

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering

引用此

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. 於 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.. https://doi.org/10.1109/CICC.2014.6946068