Electromagnetic integration of high power resonant circuits comprising high leakage inductance transformers
- 28 December 2004
- conference paper
- Published by Institute of Electrical and Electronics Engineers (IEEE)
Abstract
Known core shapes and leakage flux paths (LFP) for electromagnetically integrated transformers (EMIT) are classi- fied and extended to new core shapes and winding structures. The distinctive feature of the classification is the orientation of the leakage flux path (magnetic shunt) with respect to the axis of the windings (perpendicular or aligned) and the direction of the compression of the core. After discussing the properties of the presented structures the low profile shapes are compared by means of volume, magnetic path length and mean turn length. The flux and current distri- bution of the EMIT needed for the comparison are calculated by combining fundamental frequency analysis with reluctance models. Finally, measurement results for two prototypes are presented.Keywords
This publication has 12 references indexed in Scilit:
- Extended fundamental frequency analysis of the LCC resonant converterIEEE Transactions on Power Electronics, 2003
- Embedded passives integrated circuits for power convertersPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2003
- Application of transmission line principles to high frequency power convertersPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2003
- High-permittivity ceramic dielectrics for tuning transmission in power electronic convertersPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2003
- Using parallel windings in planar magnetic componentsPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2002
- Topology selection and design trade-offs for multi-kW telecoms DC power suppliesPublished by Institution of Engineering and Technology (IET) ,2002
- AC resistance of planar power inductors and the quasidistributed gap techniqueIEEE Transactions on Power Electronics, 2001
- New method for integration of resonant inductor and transformer-design, realisation, measurementsPublished by Institute of Electrical and Electronics Engineers (IEEE) ,1999
- A comparison of half-bridge resonant converter topologiesIEEE Transactions on Power Electronics, 1988
- On the law of hysteresisProceedings of the IEEE, 1984