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LLC resonant converter design for bendable power converter
2016 IEEE Applied Power Electronics Conference and Exposition (APEC), 2016In this paper, a design approach of LLC resonant converter with bendable transformer is presented. First, the electrical parameters of the LLC resonant converter are calculated based on the first-harmonic-approximation (FHA) equivalent circuit. Second, the bendable transformer design approach based on bendable transformer model gives the physical ...
Godwin Kwun Yuan Ho +2 more
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A novel resonant LLC soft-switching buck converter
2014 IEEE 23rd International Symposium on Industrial Electronics (ISIE), 2014A new LLC resonant DC-DC buck converter is presented. The employed multi-resonant tank provides soft-switching conditions for all semiconductor devices independent from the operating voltages and the load current. The proposed converter enjoys useful advantages such as low element count, unconditional soft switching operation, self short-circuit ...
Masoud Jabbari +3 more
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IMPLEMENTATION OF 480W LLC RESONANT CONVERTER
2019This study presents the design of an LLC resonant converter as using the leakage inductance of the transformer instead of the inductance in the resonance tank. With serial resonant characteristics, the power MOSFETs are conducted at zero voltage switching and secondary diodes are commutating under soft switching, so the switching power losses on the ...
BULUT, Yunus +2 more
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Digital control of a half-bridge LLC resonant converter
2012 15th International Power Electronics and Motion Control Conference (EPE/PEMC), 2012Recently, LLC resonant converters are gaining more and more interest in DC/DC conversion due to their high efficiency and power density. Usually, they are used in low power applications, i.e. in the range of few hundred Watt and with constant output load, however they are very appealing in high power and renewable energy applications as well as in many
BUCCELLA, CONCETTINA +3 more
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Design of an integrated magnetics structure for LLC resonant converter
IECON 2017 - 43rd Annual Conference of the IEEE Industrial Electronics Society, 2017This paper, we propose IM (Integrated Magnetics) structure for LLC resonant converter. The IM technique can combine several components into one magnetic core, plus, utilizing a planar magnetic core is a suitable device to achieve high power density. Therefore, it can achieve high power density in Switch Mode Power Supply (SMPS) because the total volume
Chul Wan Park, Sang-Kyoo Han
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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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Analysis and modeling of integrated magnetics for LLC resonant converters
IECON 2017 - 43rd Annual Conference of the IEEE Industrial Electronics Society, 2017Shunt-inserted transformers are widely used to obtain high leakage inductance. This paper investigates this method in depth to make it applicable to integrate resonant inductor for the LLC resonant converters. The analysis and model of magnetizing inductance and leakage inductance for shunt-inserted planar transformers with and without air gaps are ...
Mingxiao Li 0003 +3 more
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LLC parallel resonant converter design by scaling the LC converter
IEEE Transactions on Aerospace and Electronic Systems, 1998An efficient and practical method for steady-state design of an LLC-type parallel resonant dc/dc converter (LLC-PRC) is presented. In general, the output characteristic curves of LLC-PRC can be obtained by multiplying the output curves of the LC-type parallel resonant converter (LC-PRC) by a ratio of the parallel and series inductances.
null Jung-Hui Cheng, A.F. Witulski
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Study on LLC Resonant Converter for EMI Reduction
SSRN Electronic Journal, 2016The problem of EMI reduction is the topic of major interest in recent years. EMI reduction is one of the aspects in the power converter operation and control. EMI Reduction refers to techniques such as spread spectrum clocking to reduce the effects of electromagnetic interference or EMI,EMI is defined as EMI = kIAf2 where I is the current, A is the ...
D. Saravanakamalam, V. Kamaraj
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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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