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Title: To improve wireless power transmission efficiency by using coil arrays
Authors: Pu, S.
Hui, H.T. 
Keywords: Coil array
transmission efficiency
wireless power transmission
Issue Date: 2013
Citation: Pu, S.,Hui, H.T. (2013). To improve wireless power transmission efficiency by using coil arrays. 2013 IEEE Wireless Power Transfer, WPT 2013 : 195-197. ScholarBank@NUS Repository.
Abstract: A new method of using coil arrays at both the transmitter and receiver sides is introduced for wireless power transmission (WPT) employing the technique of mid-range strong magnetic resonant coupling. Dual two-coil arrays are designed as the WPT system, where one array is used for the power transmitter while the other array is applied for the power receiver. It is shown that a power transmission efficiency of well over 50% at a transmission separation of 50 cm can be achieved. This efficiency is much higher than the usual cases of not using coil arrays both on the transmitting and receiving sides. Also, the optimized values of load resistors connected to the receiver coil elements show that the proposed WPT system is especially suitable for charging batteries with very low internal resistances such as batteries in laptops and mobile phones. © 2013 IEEE.
Source Title: 2013 IEEE Wireless Power Transfer, WPT 2013
ISBN: 9781467350082
DOI: 10.1109/WPT.2013.6556916
Appears in Collections:Staff Publications

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