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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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Bidirectional Three-Phase LLC Resonant Converter
2018 IEEE Transportation Electrification Conference and Expo, Asia-Pacific (ITEC Asia-Pacific), 2018Resonant circuit has been widely implemented to achieve high conversion efficiency by means of soft switching for the power transistor. In bidirectional converter application, the most commonly implemented resonant converter is series resonant converter due to its natural capability for bidirectional power flow operation, simple operation, and simple ...
Arief Noor Rahman +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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Equivalent Circuit Modeling of LLC Resonant Converter
IEEE Transactions on Power Electronics, 2016LLC resonant converter is widely used in industry. However, up to now, no simple and accurate small-signal equivalent circuit model is available. This article proposes an equivalent circuit model of LLC resonant converter. The simple equivalent circuit model is derived based on modification and simplification of extended describing function method ...
Shuilin Tian, Fred C. Lee, Qiang Li
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Output Plane Analyses of LLC Resonant Converter
2020 IEEE Applied Power Electronics Conference and Exposition (APEC), 2020LLC resonant converters are popular for point-of-load (POL) DC-DC conversion in various applications due to its soft-switched characteristics, high operating efficiency and reduced EMI noise profile. In complex systems, modular structure is maintained by using POL converters in parallel to feed a high power load. Therefore, it is essential to model the
Suyash Sushilkumar Shah +2 more
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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 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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IEEE Journal of Emerging and Selected Topics in Power Electronics, 2022
The LLC converter has been widely used in the power supply industry for its high conversion efficiency. When the output load is low, the LLC resonant converter will substantially increase the operating frequency, thereby reducing the conversion ...
Jing-Yuan Lin +3 more
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The LLC converter has been widely used in the power supply industry for its high conversion efficiency. When the output load is low, the LLC resonant converter will substantially increase the operating frequency, thereby reducing the conversion ...
Jing-Yuan Lin +3 more
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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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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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