Foreign Object Detection for Wireless Charging System


This wireless charging system is developed by magnetic resonance technology. With its high power and high efficiency properties, the system is applicable for various kinds of electric vehicles. The incorporated FOD fucntion is able to immediately detect a metal foreign object as small as a coin and to ensure the system safty.


▪ Wireless power transfer based on magnetic resonance technology
▪ Multi-coil sensing technology 


▪ Power:>1~3.7kW
▪ Gap:10-16cm
▪ System efficiency:>80%
▪ Foreign object detection:A 3*3cm^2 metal foreign object can be detected within 0.5 s

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Kuang-Jen Chang(ext.2315)