Abstract
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.
| Original language | English |
|---|---|
| Article number | 6412807 |
| Pages (from-to) | 4970-4984 |
| Number of pages | 15 |
| Journal | IEEE Transactions on Power Electronics |
| Volume | 28 |
| Issue number | 11 |
| DOIs | |
| Publication status | Published - 2013 |
Keywords
- Coupled inductor
- dc-dc Converter
- integrated magnetic
- magnetic design