Design of Interleaved Winding for Multilayer Planar Inductor and Its Application in Reducing Current Ringing of LLC Resonant Converter
To enhance the power density of LLC resonant converters, multilayer planar inductors are required. However, multilayer planar inductors have high parasitic capacitance, which may cause inductor current ringing in LLC resonant converters, leading to EMI problems. In this paper, it is found that by us...
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| Format: | Article |
| Language: | English |
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MDPI AG
2024-03-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/17/7/1649 |
| _version_ | 1797212649584328704 |
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| author | Qichen Liu Zhengquan Zhang |
| author_facet | Qichen Liu Zhengquan Zhang |
| author_sort | Qichen Liu |
| collection | DOAJ |
| description | To enhance the power density of LLC resonant converters, multilayer planar inductors are required. However, multilayer planar inductors have high parasitic capacitance, which may cause inductor current ringing in LLC resonant converters, leading to EMI problems. In this paper, it is found that by using interleaved winding inductors, compared with traditional winding inductors, the parasitic capacitance of multilayer planar inductors is reduced, which can reduce current ringing, without sacrificing power density and increasing manufacturing complexity. The method used to analyze current ringing is to establish an impedance model, and the parasitic capacitance of the interleaved winding inductors is verified by FEM simulations. The analysis is validated in an LLC resonant converter prototype. |
| first_indexed | 2024-04-24T10:45:45Z |
| format | Article |
| id | doaj.art-a3c509f9a4de473ea8aacb97baa241ae |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-04-24T10:45:45Z |
| publishDate | 2024-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-a3c509f9a4de473ea8aacb97baa241ae2024-04-12T13:17:58ZengMDPI AGEnergies1996-10732024-03-01177164910.3390/en17071649Design of Interleaved Winding for Multilayer Planar Inductor and Its Application in Reducing Current Ringing of LLC Resonant ConverterQichen Liu0Zhengquan Zhang1School of Physical Science and Technology, Southwest Jiaotong University, Chengdu 611756, ChinaSchool of Physical Science and Technology, Southwest Jiaotong University, Chengdu 611756, ChinaTo enhance the power density of LLC resonant converters, multilayer planar inductors are required. However, multilayer planar inductors have high parasitic capacitance, which may cause inductor current ringing in LLC resonant converters, leading to EMI problems. In this paper, it is found that by using interleaved winding inductors, compared with traditional winding inductors, the parasitic capacitance of multilayer planar inductors is reduced, which can reduce current ringing, without sacrificing power density and increasing manufacturing complexity. The method used to analyze current ringing is to establish an impedance model, and the parasitic capacitance of the interleaved winding inductors is verified by FEM simulations. The analysis is validated in an LLC resonant converter prototype.https://www.mdpi.com/1996-1073/17/7/1649LLC resonant converterplanar inductorparasitic capacitanceimpedance modelcurrent ringing |
| spellingShingle | Qichen Liu Zhengquan Zhang Design of Interleaved Winding for Multilayer Planar Inductor and Its Application in Reducing Current Ringing of LLC Resonant Converter Energies LLC resonant converter planar inductor parasitic capacitance impedance model current ringing |
| title | Design of Interleaved Winding for Multilayer Planar Inductor and Its Application in Reducing Current Ringing of LLC Resonant Converter |
| title_full | Design of Interleaved Winding for Multilayer Planar Inductor and Its Application in Reducing Current Ringing of LLC Resonant Converter |
| title_fullStr | Design of Interleaved Winding for Multilayer Planar Inductor and Its Application in Reducing Current Ringing of LLC Resonant Converter |
| title_full_unstemmed | Design of Interleaved Winding for Multilayer Planar Inductor and Its Application in Reducing Current Ringing of LLC Resonant Converter |
| title_short | Design of Interleaved Winding for Multilayer Planar Inductor and Its Application in Reducing Current Ringing of LLC Resonant Converter |
| title_sort | design of interleaved winding for multilayer planar inductor and its application in reducing current ringing of llc resonant converter |
| topic | LLC resonant converter planar inductor parasitic capacitance impedance model current ringing |
| url | https://www.mdpi.com/1996-1073/17/7/1649 |
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