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A simple resonant frequency tracking technique for LLC resonant converters
2017 IEEE 6th International Conference on Renewable Energy Research and Applications (ICRERA), 2017A LLC resonant converter (LLC-RC) has been widely used in DC/DC converters for the benefits of high efficiency and high power density. The efficiency of a LLC resonant converter is greatly dependent on the switching frequency. In order to achieve higher efficiency, the switching frequency should be equal to the resonant frequency. This paper presents a
Abu-Rub, Haitham +2 more
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Synchronous Rectification for LLC Resonant Converter: An Overview
IEEE transactions on power electronics, 2021LLC resonant converter is one of the most popular isolated dc/dc converters owning to its advantages of simple control, wide voltage gain regulation capability, and soft switching operation. Nevertheless, high efficiency and high power density are always
Yuqi Wei, Quanming Luo, A. Mantooth
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LLC resonant converters for PHEV battery chargers
2013 Twenty-Eighth Annual IEEE Applied Power Electronics Conference and Exposition (APEC), 2013The load-dependent properties of LLC resonant converter leads to enormous difficulty in regular design of the converter, even when the load characteristic is usually assumed to be passive for the design simplification. For a battery charger, the output voltage requirement is quite different and is more challenging compared with the passive load.
Sideng Hu +3 more
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Design and Control of a High-Power Wide-Gain-Range LLC Resonant Converter
Applied Power Electronics Conference, 2022A design and control method are introduced in this paper to improve the overall efficiency of an LLC converter for railway applications, with high power and wide gain range requirements. Multi operation modes are combined together. Magnetizing inductance
Chunyang Zhao +5 more
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Parallel resonant converter with LLC-type commutation
IEEE Transactions on Aerospace and Electronic Systems, 1989It is shown that by using a proper transformation of state variables, the third-order system of the parallel resonant converter (PRC) with LLC-type commutation can be analyzed by means of a two-dimensional state-plane diagram. A set of characteristic curves which can be used for the converter design is derived from the analysis.
C.Q. Lee, R. Liu, I. Batarseh
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IEEE transactions on power electronics, 2021
Light load efficiency and output voltage regulation of a low-$Q$ LLC resonant converter is a critical problem for wide input voltage and load range applications. Parasitic capacitances such as rectifier diode junction capacitance ($C_j$) degrade the soft
A. Awasthi, Snehal Bagawade, P. Jain
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Light load efficiency and output voltage regulation of a low-$Q$ LLC resonant converter is a critical problem for wide input voltage and load range applications. Parasitic capacitances such as rectifier diode junction capacitance ($C_j$) degrade the soft
A. Awasthi, Snehal Bagawade, P. Jain
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A Hybrid Pulse Frequency Modulation Control Strategy for L-LLC Resonant Converter
IEEE Journal of Emerging and Selected Topics in Power Electronics, 2022The traditional control strategy for the L-LLC resonant converter is the synchronous unequal width pulse frequency modulation (SUW PFM). However, this strategy causes a large circulating power in the forward buck and reverse boost modes, especially when ...
Jianqiang Liu +4 more
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IEEE transactions on power electronics, 2022
The traditional LLC converter with variable switching frequency achieves wide output voltage range operation, but it is companied by the issues of reduced efficiency and difficult magnetic component design. To overcome these issues, a novel LLC converter
Hengkai Dang +3 more
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The traditional LLC converter with variable switching frequency achieves wide output voltage range operation, but it is companied by the issues of reduced efficiency and difficult magnetic component design. To overcome these issues, a novel LLC converter
Hengkai Dang +3 more
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PWAM control of bidirectional LLC resonant converter
2013 1st International Future Energy Electronics Conference (IFEEC), 2013This paper proposes an improved bidirectional LLC resonant converter with pulse width and amplitude modulation (PWAM) control method. With the proposed PWAM control method, the converter can be operated with a much wider voltage range at a fixed switching frequency, which can be equal to the resonant frequency.
Tianyang Jiang +4 more
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Design of LLC Resonant Converter for High Efficiency EV Charging
2022 IEEE Global Conference on Computing, Power and Communication Technologies (GlobConPT), 2022This study presents a highly efficient, isolated, LLC resonant DC-DC converter for electric vehicle charging, using the control strategy namely Frequency Modulation (FM).
G. Jagadan +4 more
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