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http://dx.doi.org/10.7471/ikeee.2021.25.1.218

High-Efficiency DC-DC Converter using the Multi-Resonant-Circuit  

Jeong, Gang-Youl (Department of Electronic Information Engineering, Soonchunhyang University)
Publication Information
Journal of IKEEE / v.25, no.1, 2021 , pp. 218-228 More about this Journal
Abstract
This paper presents the high-efficiency DC-DC converter using the multi-resonant-circuit. The proposed converter has the power topology of half-bridge and utilizes the multi-resonant-circuit that is composed of 2 inductors (LL) and 1 capacitor (C) to achieve high-efficiency. The multi-resonant-circuit forms each resonant circuit of series circuit type with each resonant frequency, according to the operation modes. This paper first describes the operation pirinciples of proposed converter by the operation modes and steady-state fundamental approximation modelling. Then it shows a design example of the proposed converter based on the principles. And it is validated that the proposed converter has the operation characteristics of high-efficiency DC-DC power conversion through the experimental results of prototype converter implemented by the designed circuit parameters.
Keywords
multi-resonant-circuit; resonant frequency; series circuit type; half-bridge; DC-DC power conversion;
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