TY - GEN
T1 - Design consideration of two flat transformers in a low-profile LLC resonant converter
AU - Yang, Sihun
AU - Abe, Seiya
AU - Shoyama, Masahito
PY - 2011/8/31
Y1 - 2011/8/31
N2 - This paper presents the design consideration of a low-profile LLC resonant converter using tw,o flat transformers. The trend toward high power density, high efficiency, and low profile in power supplies has exposed a number of limitations in the use of magnetic component structures. The LLC resonant converter can be operated at a high switching frequency with high efficiency because the switching loss is reduced by soft-switching. However, flat transformer loss causes problems at a high switching frequency. As a result, temperature of flat transformers becomes high. Therefore, it is necessary to reduce the transformer temperature by analyzing the loss. In this proposed converter, flat transformer is integrated into advanced power conversion application systems. Low-profile power module of profile of about 14mm is achieved. Temperature inside of transformer repressed to 61C and an overall efficiency of about 97.8% was obtained.
AB - This paper presents the design consideration of a low-profile LLC resonant converter using tw,o flat transformers. The trend toward high power density, high efficiency, and low profile in power supplies has exposed a number of limitations in the use of magnetic component structures. The LLC resonant converter can be operated at a high switching frequency with high efficiency because the switching loss is reduced by soft-switching. However, flat transformer loss causes problems at a high switching frequency. As a result, temperature of flat transformers becomes high. Therefore, it is necessary to reduce the transformer temperature by analyzing the loss. In this proposed converter, flat transformer is integrated into advanced power conversion application systems. Low-profile power module of profile of about 14mm is achieved. Temperature inside of transformer repressed to 61C and an overall efficiency of about 97.8% was obtained.
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U2 - 10.1109/ICPE.2011.5944626
DO - 10.1109/ICPE.2011.5944626
M3 - Conference contribution
AN - SCOPUS:80052089448
SN - 9781612849560
T3 - 8th International Conference on Power Electronics - ECCE Asia: "Green World with Power Electronics", ICPE 2011-ECCE Asia
SP - 854
EP - 859
BT - 8th International Conference on Power Electronics - ECCE Asia
T2 - 8th International Conference on Power Electronics - ECCE Asia: "Green World with Power Electronics", ICPE 2011-ECCE Asia
Y2 - 30 May 2011 through 3 June 2011
ER -