Common-Mode Noise Mitigation Method for Planar Transformer Based on FB LLC converter

  • Yue Cao
  • , Pengyuan Ren
  • , Xingwei Huang
  • , Yuxuan Chen
  • , Wenjie Chen

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

4 Scopus citations

Abstract

Planar transformers (PTs) have attracted tremendous attentions in many applications requiring low-profile power converters, such as server center and telecom. Today, traditional PTs still face large common-mode (CM) noise due to inter-winding capacitances and lager winding losses due to large eddy current in solid windings. Previous works show that there may exist a compromise between AC winding losses reduction and CM noise reduction. The paper proposes a novel high-performance PT based on CM currents cancellation in full-bridge (FB) LLC resonant converter and a novel winding arrangement to achieve low CM noise and low AC losses in PT. A 1.5kW 400V/50V FB LLC resonant converter prototype has been built as a platform to verify CM noise cancellation in PT of the proposed method. Experiment results show over 20dB CM noise reduction can be achieved while keeping low AC losses.

Original languageEnglish
Title of host publication2022 Asia-Pacific International Symposium on Electromagnetic Compatibility, APEMC 2022
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages702-705
Number of pages4
ISBN (Electronic)9781665416719
DOIs
StatePublished - 2022
Event13th Asia-Pacific International Symposium on Electromagnetic Compatibility and Technical Exhibition, APEMC 2022 - Beijing, China
Duration: 1 Sep 20224 Sep 2022

Publication series

Name2022 Asia-Pacific International Symposium on Electromagnetic Compatibility, APEMC 2022

Conference

Conference13th Asia-Pacific International Symposium on Electromagnetic Compatibility and Technical Exhibition, APEMC 2022
Country/TerritoryChina
CityBeijing
Period1/09/224/09/22

Keywords

  • CM noise
  • Current Cancellation
  • FB LLC converter
  • Matrix Planar Transformer

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