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Study on subharmonics in a flyback converter considering transformer inductance and parasite capacitance of switching device

  • Yingyu Zeng
  • , Jiawen Sun
  • , Jinming Wan
  • , Biao Xiao
  • , Zhaowen Yan

科研成果: 书/报告/会议事项章节会议稿件同行评审

摘要

This paper presents the subharmonics phenomenon of switching frequency in a flyback converter (FBC). Discontinuous conduction mode (DCM) and continuous conduction mode (CCM) are interleaving, which generates 1/2, 3/2, 5/2... switching frequency subharmonics. The subharmonics are related to the oscillation between the transformer inductance and the parasite capacitance of the switching device. Numerical analysis validates the subharmonic phenomenon in a 132 kHz 15 W FBC, the analysis results suggest that the subharmonics are minimum when the primary and equivalent secondary side leakage impedances are equal in the transformer.

源语言英语
主期刊名2019 IEEE 6th International Symposium on Electromagnetic Compatibility, ISEMC 2019 - Conference Proceedings
出版商Institute of Electrical and Electronics Engineers Inc.
ISBN(电子版)9781728144160
DOI
出版状态已出版 - 11月 2019
活动6th IEEE International Symposium on Electromagnetic Compatibility, ISEMC 2019 - Nanjing, 中国
期限: 1 11月 20194 11月 2019

出版系列

姓名IEEE International Symposium on Electromagnetic Compatibility
2019-November
ISSN(印刷版)1077-4076
ISSN(电子版)2158-1118

会议

会议6th IEEE International Symposium on Electromagnetic Compatibility, ISEMC 2019
国家/地区中国
Nanjing
时期1/11/194/11/19

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