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Electromagnetic modeling for design and loss estimation of resonant integrated spiral planar power passives (ISP3)

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2 Author(s)
Strydom, J.T. ; Int. Rectifier Corp., El Segundo, CA, USA ; van Wyk, J.D.

Over the past few years, the electromagnetic integration of multiple passive components into a single integrated planar power passive module has been shown viable, not only for resonant structures, but recently also for nonresonant applications. In this paper, the development of an electromagnetic model for a resonant integrated spiral planar power passive (ISP3) structure is presented. For the design of the required passive component values to be integrated, a comprehensive electromagnetic model based on energy storage is presented. The overall structure losses including winding, core and dielectric losses are also estimated through the development of a partly one-dimensional electromagnetic field approximation. Finally, these electromagnetic models for design and loss estimation are compared to experimental results for three different prototypes of a particular design. The results show agreement to well within 10% of component and loss values in almost all cases.

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Power Electronics, IEEE Transactions on  (Volume:19 ,  Issue: 3 )