Experiment of 3-Phase N-path Filter for Hum Noise Suppression

Khilda Afifah; Retdian Nicodimus; Muhammad Arijal; Takeshi Shima

doi:10.1109/ISCAS.2019.8702340

Experiment of 3-Phase N-path Filter for Hum Noise Suppression

Khilda Afifah, Retdian Nicodimus, Muhammad Arijal, Takeshi Shima

Global course of Engineering and Science

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

Abstract

One of a critical problem in the biomedical signals measurements is hum noise activity due to power line interference. Various approaches to suppress hum noise both analog and digital techniques have been proposed. However, these approaches have some disadvantages. N-path notch filter can be an alternative solution for this problem. The notch depth in a conventional N-path notch filter is limited by the number of paths to achieve deeper notch. This paper proposes a new N-path notch filter with additional sample-and-hold (S/H) and leak buffer circuits to improve notch depth. Simulation and measurement results of 3-phase N-path filter achieve notch depth of 61.6dB and 54.5dB respectively.

Original language	English
Title of host publication	2019 IEEE International Symposium on Circuits and Systems, ISCAS 2019 - Proceedings
Publisher	Institute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)	9781728103976
DOIs	https://doi.org/10.1109/ISCAS.2019.8702340
Publication status	Published - 2019 Jan 1
Event	2019 IEEE International Symposium on Circuits and Systems, ISCAS 2019 - Sapporo, Japan Duration: 2019 May 26 → 2019 May 29

Publication series

Name	Proceedings - IEEE International Symposium on Circuits and Systems
Volume	2019-May
ISSN (Print)	0271-4310

Conference

Conference	2019 IEEE International Symposium on Circuits and Systems, ISCAS 2019
Country	Japan
City	Sapporo
Period	19/5/26 → 19/5/29

Keywords

EEG
Hum noise suppression
N-path notch filter

ASJC Scopus subject areas

Electrical and Electronic Engineering

Access to Document

10.1109/ISCAS.2019.8702340

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Afifah, K., Nicodimus, R., Arijal, M., & Shima, T. (2019). Experiment of 3-Phase N-path Filter for Hum Noise Suppression. In 2019 IEEE International Symposium on Circuits and Systems, ISCAS 2019 - Proceedings [8702340] (Proceedings - IEEE International Symposium on Circuits and Systems; Vol. 2019-May). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ISCAS.2019.8702340

Experiment of 3-Phase N-path Filter for Hum Noise Suppression. / Afifah, Khilda; Nicodimus, Retdian; Arijal, Muhammad; Shima, Takeshi.

2019 IEEE International Symposium on Circuits and Systems, ISCAS 2019 - Proceedings. Institute of Electrical and Electronics Engineers Inc., 2019. 8702340 (Proceedings - IEEE International Symposium on Circuits and Systems; Vol. 2019-May).

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

Afifah, K, Nicodimus, R, Arijal, M & Shima, T 2019, Experiment of 3-Phase N-path Filter for Hum Noise Suppression. in 2019 IEEE International Symposium on Circuits and Systems, ISCAS 2019 - Proceedings., 8702340, Proceedings - IEEE International Symposium on Circuits and Systems, vol. 2019-May, Institute of Electrical and Electronics Engineers Inc., 2019 IEEE International Symposium on Circuits and Systems, ISCAS 2019, Sapporo, Japan, 19/5/26. https://doi.org/10.1109/ISCAS.2019.8702340

Afifah K, Nicodimus R, Arijal M, Shima T. Experiment of 3-Phase N-path Filter for Hum Noise Suppression. In 2019 IEEE International Symposium on Circuits and Systems, ISCAS 2019 - Proceedings. Institute of Electrical and Electronics Engineers Inc. 2019. 8702340. (Proceedings - IEEE International Symposium on Circuits and Systems). https://doi.org/10.1109/ISCAS.2019.8702340

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abstract = "One of a critical problem in the biomedical signals measurements is hum noise activity due to power line interference. Various approaches to suppress hum noise both analog and digital techniques have been proposed. However, these approaches have some disadvantages. N-path notch filter can be an alternative solution for this problem. The notch depth in a conventional N-path notch filter is limited by the number of paths to achieve deeper notch. This paper proposes a new N-path notch filter with additional sample-and-hold (S/H) and leak buffer circuits to improve notch depth. Simulation and measurement results of 3-phase N-path filter achieve notch depth of 61.6dB and 54.5dB respectively.",

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