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Operating Characteristics of LLC Series Resonant Converter Using A LLT Transformer  

Lee, Hyun-Kwan (전주대 전기전자공학과)
Huh, Dong-Young (LG이노텍(주) Display Network사업부)
Lee, Gi-Sik (전주대 전기전자공학부)
Chung, Bong-Geun (전주대 전기전자공학부)
Kang, Sung-In (전주대 전기전자공학부)
Kim, Eun-Soo (전주대 전기전자정보통신공학부)
Publication Information
The Transactions of the Korean Institute of Power Electronics / v.11, no.5, 2006 , pp. 409-416 More about this Journal
Abstract
Operating Characteristics of LLC Series resonant converter with a LLT(Inductor-Inductor-Transformer) transformer is presented. LLT transformer used to combine the inductor and transformer into one unit has the increased leakage inductance in the primary and secondary due to the winging method and the use of the gaped core. The increased leakage inductance in the primary and secondary of LLT transformer can be impacted on the DC voltage gain characteristics of LLC series resonant converter. In the paper, DC gain characteristics and the experimental results of the LLC series resonant converter with a LLT transformer are verified on the simulation based on the theoretical analysis and the 400W experimental prototype.
Keywords
LLC Resonant Converter; LLT Transformer; DC gain characteristics;
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