Multi-phase interleaved LLC-SRC and its digital control scheme

This paper proposes a new 3-phase interleaved LLC resonant DC-DC converter and its control scheme. The proposed circuit consists of three conventional interleaved LLC resonant DC-DC converters and each converter operates with π/3 of phase difference respectively. Therefore the current ripple of the...

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Bibliographic Details
Published inSPEEDAM 2010 pp. 1189 - 1193
Main Authors Jae-Eul Yeon, Won-Seok Kang, Kyu-Min Cho, Tae-Young Ahn, Hee-Jun Kim
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.06.2010
Subjects
Capacitors
DC-DC power converters
Digital control
Interleaved DC-DC converter
LLC Resonant
Magnetic resonance
Parallel converter operation
Power supplies
Prototypes
RLC circuits
Switching converters
Topology
Zero current switching
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Summary:This paper proposes a new 3-phase interleaved LLC resonant DC-DC converter and its control scheme. The proposed circuit consists of three conventional interleaved LLC resonant DC-DC converters and each converter operates with π/3 of phase difference respectively. Therefore the current ripple of the output capacitor can be significantly reduced and the life cycle of the converter will be extended. To verify the validity of the proposed converter and digital scheme, an experiment with a prototype 1kW (12V/84A) DC-DC converter was implemented and its results are presented in this paper.
ISBN:1424449863
9781424449866
DOI:10.1109/SPEEDAM.2010.5542047