Design considerations for a contactless electric vehicle battery charger
Chwei-Sen Wang; Stielau, O.H.; Covic, G.A.
Industrial Electronics, IEEE Transactions on
Volume 52, Issue 5, Oct. 2005 Page(s): 1308 - 1314
Digital Object Identifier   10.1109/TIE.2005.855672
Summary: This paper overviews theoretical and practical design issues related to inductive power transfer systems and verifies the developed theory using a practical electric vehicle battery charger. The design focuses on the necessary approaches to ensure power transfer over the complete operating range of the system. As such, a new approach to the design of the primary resonant circuit is proposed, whereby deviations from design expectations due to phase or frequency shift are minimized. Of particular interest are systems that are neither loosely nor tightly coupled. The developed solution depends on the selected primary and secondary resonant topologies, the magnetic coupling coefficient, and the secondary quality factor.

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