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변압기 2차측 LLC 직렬공진컨버터 적용 승압형 DC/DC 컨버터
이현관(Hyun-Kwan Lee),이기식(Gi-Sik Lee),정봉근(Chung-Bong Geon),공영수(Young-Su Kong),김은수(Eun-Soo Kim),차인수(In-Su Cha),윤정필(Jeong-Phil Yoon) 전력전자학회 2006 전력전자학술대회 논문집 Vol.- No.-
Recently, the high frequency isolated boost DC/DC converter has been widely used for the PCS (Power Conditioning System) system because of its small size and low cost. However, the high frequency isolated boost DC/DC converters applied the conventional voltage-fed converter and current-fed converter have the problems such as the high conduction losses and the surge voltage due to the high circulating current and the leakage inductance, respectively. To overcome this problems, in this paper the secondary LLC resonant converter is proposed, and the experimental results of the secondary LLC series resonant converter for boost DC/DC converter are verified on the simulation based on the theoretical analysis and the l㎾ experimental prototype.
이현관(Hyun-Kwan Lee),김은수(Eun-Soo Kim),차인수(In-Su Cha),윤정필(Jeong-Phil Yoon),송환국(Hwan-kuk Song),강성인(Sung-In Kang),정봉근(Bong-Geon Chung) 전력전자학회 2006 전력전자학술대회 논문집 Vol.- No.-
Recently, the isolated high frequency boost DC/DC converter has been used widely for PCS (Power Conditioning System) because of the requirements of small size and low cost. However, the high frequency isolated boost DC/DC converters applied the conventional voltage-fed converter and current-fed converter have some problems like high conduction losses and high surge voltage due to high circulating current and leakage inductance, respectively. To improve these problems, a novel secondary LLC (called SLLC) series resonant converter is proposed in this paper and its theoretical analysis, its operating waveforms, simulation and experimental results for a boost DC/DC converter using SLLC series resonant topology verifies the proposed topology. 800W experimental prototype is designed and tested.