Skip to main navigation Skip to search Skip to main content

A novel balanced winding topology to mitigate EMI without the need for a Y-capacitor

  • Xi'an Jiaotong University
  • Silergy Corp. A206

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

16 Scopus citations

Abstract

Due to the interaction between human and the power supply equipment, more and more Switch-mode power supplies (SMPS) require lower leakage current. In the AC-DC SMPS, the leakage current is mainly caused by the Y-capacitors. It is better to remove the Y-caps in this situation. But connecting Y-caps between the primary return line terminal and the secondary return line terminal is a very common method in EMI design. Certain works should be done to acquire good EMI design without the help of Y-cap. In this paper, a novel balanced winding topology is proposed to mitigate EMI noise without the need for Y-cap. To have a better understanding of the operational principle, the EMI noise transmission path with and without Y-cap are analyzed. The design procedure of the proposed topology is discussed in detail. The experimental results demonstrated the prototype has excellent EMI performance without the help of Y-cap. It also can simplify the transformer design and be easy to implement mass production.

Original languageEnglish
Title of host publication2016 IEEE Applied Power Electronics Conference and Exposition, APEC 2016
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages3623-3628
Number of pages6
ISBN (Electronic)9781467383936
DOIs
StatePublished - 10 May 2016
Event31st Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2016 - Long Beach, United States
Duration: 20 Mar 201624 Mar 2016

Publication series

NameConference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC
Volume2016-May

Conference

Conference31st Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2016
Country/TerritoryUnited States
CityLong Beach
Period20/03/1624/03/16

Keywords

  • EMI
  • Flyback
  • Transformer
  • balance winding

Fingerprint

Dive into the research topics of 'A novel balanced winding topology to mitigate EMI without the need for a Y-capacitor'. Together they form a unique fingerprint.

Cite this