LLC DC to DC 공진 컨버터의 고주파 변압기 최적화 설계에 관한 연구 A study on an optimal design of the high frequency transformer in LLC DC to DC resonant converter 김 종 해*
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Jong-Hae Kim*
Abstract
This paper presents an optimal design of the slim type high frequency transformer used in the LLC DC to DC
resonant converter for 65-inch UHD-TV with the rated power of 315W. This paper also performs an optimal
design of the slim type high frequency through core loss analysis, AC winding loss analysis, and optimization
design of the winding arrangement of the LLC resonant transformer. Particularly, the high-efficiency and slim type
high frequency transformer based on the obtained results from theoretical analysis in this paper is constructed in
the interleaved and vertical winding structures of its transformer to realize the winding method of automatic type
and minimize AC winding loss. The primary and secondary windings of the slim type high frequency transformer
the vertical winding structure proposed in this paper used the Litz-wire windings, PCB and copper plate windings,
respectively. Finally, an optimal design of the slim type high frequency transformer proposed in this paper was
carried out through the experimental results to confirm the validity of theoretical analysis based on the simulation
results using Maxwel
j.inst.Korean.electr.electron.eng.Vol.27,No.4,587~600,December 2023
논문번호 23-04-31 https：//doi.org/10.7471/ikeee.2023.27.4.587l 2D and 3D tool.
ORIGINAL SOURCE:https://ikeee.jams.or.kr/co/locale.kci?lang=en_US
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