Low Common-Mode Noise Full-Bridge LLC Resonant Converter With Balanced Resonant Tank

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This article proposes a low common-mode (CM) noise full-bridge LLC resonant converter with two balanced resonant tanks. In the proposed converter, each resonant inductor and capacitor is divided into two components with the same value. The CM current flowing through parasitic capacitors of the transformer is reduced due to the balanced resonant tank. Moreover, the CM noise can be significantly reduced by adjacently locating the primary and secondary layers with the same dv/dt characteristic. Therefore, the proposed converter decreases the CM noise generated from the planar transformer (PT) by the balanced resonant tank and proposed layer arrangement of PT and achieves a high power density with a decreased size of the electromagnetic interference filter. The validity of the proposed converter is verified by a 1.5-kW prototype with 400-V input and 270-420-V output.
Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Issue Date
2021-04
Language
English
Article Type
Article
Citation

IEEE TRANSACTIONS ON POWER ELECTRONICS, v.36, no.4, pp.4105 - 4115

ISSN
0885-8993
DOI
10.1109/TPEL.2020.3025576
URI
http://hdl.handle.net/10203/279914
Appears in Collection
EE-Journal Papers(저널논문)
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