Abstract |
Interleaved operating DC/DC converters with coupled magnetic elements are well known as an option for high power density conversion systems. However, the design of the magnetic coupling element is usually made as single device, considering the sum of DC and AC flux swing for sizing. The presented analysis shows that it is possible to separate the magnetic AC and DC flux to different magnetic core elements with specific materials to minimize the respective losses. The approach, modelling and achievable volume reduction for non-coupled and coupled schemes are presented and compared in this paper. |