Abstract：Point of load (POL) can effectively improve its steady-state and transient response through using inverse-coupled inductors. Therefore the packaging technology of coupled inductors is payed more and more attention. This paper mainly focuses on the analysis and research of the two-phase coupled inductors based on low temperature co-fired ceramic technology(LTCC). Firstly, four structures of coupled inductor based on LTCC technics are proposed and compared; Secondly, an easy and effective mathematical model for caculating inductance is derived, and its accuracy is validated through simulation; Thirdly, an ultra-thin (1.3mm thick) coupled inductor based on LTCC is fabricated, and its test results are also given; Finally, a 12V input, 1.2V/45A output two-phase interleaved buck converter is built for testing the LTCC coupled inductor.
王来利, 裴云庆, 崔希志, 杨旭, 王兆安. 基于LTCC技术的耦合电感[J]. 电工技术学报, 2012, 27(4): 94-100.
Wang Laili, Cui Xizhi, Pei Yunqing, Yang Xu, Wang Zhaoan. Coupled Inductors Based on LTCC Technology. Transactions of China Electrotechnical Society, 2012, 27(4): 94-100.
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2012, Vol. 27 
