Integrated magnetic for LLC resonant converter

By Bo Yang, Rengang Chen, Fred C. Lee. APEC. Seventeenth Annual IEEE Applied Power Electronics Conference and Exposition (Cat. No.02CH37335), 2002

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Design Methodology of LLC Resonant Converters for Electric Vehicle Battery Chargers (2014, unknown): “However, the LLC topology is difficult to analyze and design because of its multiple resonant components and various operation modes [13].”
LLC resonant converter with matrix transformer (2014, background): “1, LLC type resonant converters are studied and draw a lot of attention since 2002 [7-14].”
Optimal Design Methodology for LLC Resonant Converter in Battery Charging Applications Based on Time-Weighted Average Efficiency (2015, background): “Steady-state analysis is presented in [34]–[36] to accurately describe the behavior of LLC resonant convert.”
Operation Mode Analysis and Peak Gain Approximation of the LLC Resonant Converter (2012, background): “However, the LLC topology is difficult to analyze because of its multiple resonant components and various operation modes [6].”
High-Frequency Three-Phase Interleaved LLC Resonant Converter With GaN Devices and Integrated Planar Magnetics (2019, methodology): “Two U-I cores are combined into one E-I core in [38] as shown in Fig.”
High-Efficiency High-Power-Density LLC Converter With an Integrated Planar Matrix Transformer for High-Output Current Applications (2017, background): “In comparison with soft-switching PWM converters, LLC converters can achieve a higher switching frequency with better efficiency, resulting in a higher power density and lower total cost [8], [10].”