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Analysis and Design of Multi-phase Interleaved Parallel Coupled Inductors
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Changhua XIE, Liping ZHANG, Wei CHEN, Changqing XIAO
Journal of Power Supply | 2025, 23(2) : 31 - 39
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Journal of Power Supply | 2025, 23(2): 31-39
• DC-DC Converters •
Analysis and Design of Multi-phase Interleaved Parallel Coupled Inductors
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Changhua XIE, Liping ZHANG, Wei CHEN, Changqing XIAO
Affiliations
  • College of Electrical Engineering and Automation, Fuzhou University, Fuzhou 350108, China
Published: 2025-03-30 doi: 10.13234/j.issn.2095-2805.2025.2.31
Outline
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The application of multi-phase interleaved parallel coupled inductors technology can effectively reduce the phase current ripple and improve the dynamic response speed. Aimed at different design objectives, the influencing factors for the steady-state and dynamic performances of direct- and indirect-coupled inductors are analyzed. Subsequently, based on the invariant equivalent dynamic inductance before and after coupling, the direct- and indirect-coupled inductors are designed to enhance the steady-state performance. Similarly, based on the invariant equivalent steady-state inductance before and after coupling, direct- and indirect-coupled inductors are designed to improve the dynamic performance. Finally, the cor-rectness and effectiveness of the theoretical analysis were verified by experimental results, demonstrating that the two different coupling methods can significantly enhance the steady-state and dynamic performances of the converter, respectively.

Coupled inductor  /  indirect-coupled  /  equivalent steady-state inductance  /  equivalent dynamic inductance  /  steady-state performance  /  dynamic performance
Changhua XIE, Liping ZHANG, Wei CHEN, Changqing XIAO. Analysis and Design of Multi-phase Interleaved Parallel Coupled Inductors[J]. Journal of Power Supply, 2025 , 23 (2) : 31 -39 . DOI: 10.13234/j.issn.2095-2805.2025.2.31
Funding
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  • National Natural Science Foundation of China(51777036)
  • Fujian Province Industrial Technology Development and Application Guiding Project(2022H0101)
Appendix
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Year 2025 volume 23 Issue 2
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492
167
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Article Info
doi: 10.13234/j.issn.2095-2805.2025.2.31
  • Receive Date：2023-10-07
  • Online Date：2025-07-01
  • Published：2025-03-30
Article Data
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History
  • Received：2023-10-07
  • Accepted：2023-11-21
Funding
National Natural Science Foundation of China(51777036)
Fujian Province Industrial Technology Development and Application Guiding Project(2022H0101)
Affiliations
    College of Electrical Engineering and Automation, Fuzhou University, Fuzhou 350108, China
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小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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