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Inductive Power Transfer (IPT) is widely considered as an alternative to conventional conductive Electric Vehicle (EV) battery chargers for the unique advantages of the contactless power supply. In this article, the power electronics design trade-offs between the automotive requirements of high efficiency, high compactness, and low cost are analyzed for IPT systems. Pareto fronts show that physical limits severely restrict a compact and cost-effective design of the IPT coils. The challenge of realizing a competitive contactless solution is emphasized by a comparison of existing IPT systems to state-of-the-art conductive chargers. An overview of today's technology barriers is provided and the future perspectives for IPT are critically discussed.
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Bosshard et al. (2016) studied this question.
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