High frequency planar transformer with helical winding structure
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Author(s)
Wong, Fu
Lu, Junwei
Griffith University Author(s)
Year published
2000
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A high frequency planar transformer with helical windings is proposed in this paper. This transformer combines the advantages of the planar magnetic core transformer and air core transformer. The input impedance and the voltage ratio of this new transformer are much higher than its air core counterpart. The numerical result shows that the flux is evenly distributed and totally enclosed inside the planar ferrite. The electromagnetic interference (EMI), generated from the windings of transformer, is signiticantly reduced by using magnetic femte cores.A high frequency planar transformer with helical windings is proposed in this paper. This transformer combines the advantages of the planar magnetic core transformer and air core transformer. The input impedance and the voltage ratio of this new transformer are much higher than its air core counterpart. The numerical result shows that the flux is evenly distributed and totally enclosed inside the planar ferrite. The electromagnetic interference (EMI), generated from the windings of transformer, is signiticantly reduced by using magnetic femte cores.
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Conference Title
Digest Intermag 2000
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Copyright Statement
© 2000 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.
Subject
History, heritage and archaeology