EMI noise cancelation by optimizing transformer design without need for the traditional Y-capacitor

Yongjiang Bai; Wenjie Chen; Ruirui He; Dan Zhang; Xu Yang

doi:10.1109/APEC.2016.7467958

EMI noise cancelation by optimizing transformer design without need for the traditional Y-capacitor

Yongjiang Bai
, Wenjie Chen
, Ruirui He
, Dan Zhang
, Xu Yang

School of Electrical Engineering

Xi'an Jiaotong University
Silergy Corp. A206

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

7 Scopus citations

Abstract

At present, Y capacitor is widely adopted inside an isolated switched mode power supply to pass EMI tests. However, to meet certain safety standard, engineers are trying to reduce the Y-cap in such equipment as cell phone and pad chargers, medical instruments, handheld and portable equipment. As we know, the removal of Y-cap offers a big challenge for the EMI design. To solve the problem, this paper proposed an optimized transformer design method. By means of this method, the EMI noise can be reduced without the need of the traditional Y-cap. Analysis of the transformer architecture as well as the auxiliary winding has been carried out. The experiment results demonstrated the effectiveness and feasibility of the proposed method.

Original language	English
Title of host publication	2016 IEEE Applied Power Electronics Conference and Exposition, APEC 2016
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	766-771
Number of pages	6
ISBN (Electronic)	9781467383936
DOIs	https://doi.org/10.1109/APEC.2016.7467958
State	Published - 10 May 2016
Event	31st Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2016 - Long Beach, United States Duration: 20 Mar 2016 → 24 Mar 2016

Publication series

Name	Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC
Volume	2016-May

Conference

Conference	31st Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2016
Country/Territory	United States
City	Long Beach
Period	20/03/16 → 24/03/16

Keywords

EMI
Y-capacitor
noise cancelation
transformer design

Access to Document

10.1109/APEC.2016.7467958

Cite this

Bai, Y., Chen, W., He, R., Zhang, D., & Yang, X. (2016). EMI noise cancelation by optimizing transformer design without need for the traditional Y-capacitor. In 2016 IEEE Applied Power Electronics Conference and Exposition, APEC 2016 (pp. 766-771). Article 7467958 (Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC; Vol. 2016-May). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/APEC.2016.7467958

Bai, Yongjiang ; Chen, Wenjie ; He, Ruirui et al. / EMI noise cancelation by optimizing transformer design without need for the traditional Y-capacitor. 2016 IEEE Applied Power Electronics Conference and Exposition, APEC 2016. Institute of Electrical and Electronics Engineers Inc., 2016. pp. 766-771 (Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC).

@inproceedings{52dc49ae9e48454281cd7816b3655ccc,

title = "EMI noise cancelation by optimizing transformer design without need for the traditional Y-capacitor",

abstract = "At present, Y capacitor is widely adopted inside an isolated switched mode power supply to pass EMI tests. However, to meet certain safety standard, engineers are trying to reduce the Y-cap in such equipment as cell phone and pad chargers, medical instruments, handheld and portable equipment. As we know, the removal of Y-cap offers a big challenge for the EMI design. To solve the problem, this paper proposed an optimized transformer design method. By means of this method, the EMI noise can be reduced without the need of the traditional Y-cap. Analysis of the transformer architecture as well as the auxiliary winding has been carried out. The experiment results demonstrated the effectiveness and feasibility of the proposed method.",

keywords = "EMI, Y-capacitor, noise cancelation, transformer design",

author = "Yongjiang Bai and Wenjie Chen and Ruirui He and Dan Zhang and Xu Yang",

note = "Publisher Copyright: {\textcopyright} 2016 IEEE.; 31st Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2016 ; Conference date: 20-03-2016 Through 24-03-2016",

year = "2016",

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doi = "10.1109/APEC.2016.7467958",

language = "英语",

series = "Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC",

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Bai, Y, Chen, W, He, R, Zhang, D & Yang, X 2016, EMI noise cancelation by optimizing transformer design without need for the traditional Y-capacitor. in 2016 IEEE Applied Power Electronics Conference and Exposition, APEC 2016., 7467958, Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC, vol. 2016-May, Institute of Electrical and Electronics Engineers Inc., pp. 766-771, 31st Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2016, Long Beach, United States, 20/03/16. https://doi.org/10.1109/APEC.2016.7467958

EMI noise cancelation by optimizing transformer design without need for the traditional Y-capacitor. / Bai, Yongjiang; Chen, Wenjie; He, Ruirui et al.
2016 IEEE Applied Power Electronics Conference and Exposition, APEC 2016. Institute of Electrical and Electronics Engineers Inc., 2016. p. 766-771 7467958 (Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC; Vol. 2016-May).

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

TY - GEN

T1 - EMI noise cancelation by optimizing transformer design without need for the traditional Y-capacitor

AU - Bai, Yongjiang

AU - Chen, Wenjie

AU - He, Ruirui

AU - Zhang, Dan

AU - Yang, Xu

PY - 2016/5/10

Y1 - 2016/5/10

N2 - At present, Y capacitor is widely adopted inside an isolated switched mode power supply to pass EMI tests. However, to meet certain safety standard, engineers are trying to reduce the Y-cap in such equipment as cell phone and pad chargers, medical instruments, handheld and portable equipment. As we know, the removal of Y-cap offers a big challenge for the EMI design. To solve the problem, this paper proposed an optimized transformer design method. By means of this method, the EMI noise can be reduced without the need of the traditional Y-cap. Analysis of the transformer architecture as well as the auxiliary winding has been carried out. The experiment results demonstrated the effectiveness and feasibility of the proposed method.

AB - At present, Y capacitor is widely adopted inside an isolated switched mode power supply to pass EMI tests. However, to meet certain safety standard, engineers are trying to reduce the Y-cap in such equipment as cell phone and pad chargers, medical instruments, handheld and portable equipment. As we know, the removal of Y-cap offers a big challenge for the EMI design. To solve the problem, this paper proposed an optimized transformer design method. By means of this method, the EMI noise can be reduced without the need of the traditional Y-cap. Analysis of the transformer architecture as well as the auxiliary winding has been carried out. The experiment results demonstrated the effectiveness and feasibility of the proposed method.

KW - EMI

KW - Y-capacitor

KW - noise cancelation

KW - transformer design

UR - https://www.scopus.com/pages/publications/84973652782

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ER -

Bai Y, Chen W, He R, Zhang D, Yang X. EMI noise cancelation by optimizing transformer design without need for the traditional Y-capacitor. In 2016 IEEE Applied Power Electronics Conference and Exposition, APEC 2016. Institute of Electrical and Electronics Engineers Inc. 2016. p. 766-771. 7467958. (Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC). doi: 10.1109/APEC.2016.7467958

EMI noise cancelation by optimizing transformer design without need for the traditional Y-capacitor

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Keywords

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