A novel CCTT-core split-winding integrated magnetic (IM) structure is presented in this paper. The IM device is optimized for use in high-power dc-dc converters. The IM structure uses a split-winding configuration which allows for the reduction of external leakage inductance, which is a problem for many IM designs. Magnetic poles are incorporated to help shape and contain the leakage flux within the core window. Low-cost and low-power loss ferrite is used which results in a very efficient design. An IM reluctance model is developed which uses fringing equations to develop a more accurate design. An IM design algorithm is developed and implemented in Mathematica for design and optimization. FEA and experimental results from a 72 kW, (155-V dc, 465-A dc input, and 420-V dc output) prototype validate the new IM concept. The 72 kW CCTT-core IM was shown to be 99.7% efficient at full load. © 1986-2012 IEEE.
CITATION STYLE
Hartnett, K. J., Hayes, J. G., Egan, M. G., & Rylko, M. S. (2013). CCTT-Core split-winding integrated magnetic for high-power DC-DC converters. IEEE Transactions on Power Electronics, 28(11), 4970–4984. https://doi.org/10.1109/TPEL.2013.2240394
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