Efficiency optimization of WPT system with a planar receiver for mobile applications

ABSTRACT This letter presents a wireless power transfer (WPT) system with a planar receiver for mobile applications. The proposed WPT system includes a source coil, a transmitter spiral (Tx coil), a rectangular receiver coil (Rx coil), and a rectangular load coil. In order to make a compact receiver...

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Published in:Microwave and optical technology letters 2016-08, Vol.58 (8), p.1817-1819
Main Authors: Thuan Nguyen, Van, Hyon Kang, Seok, Won Jung, Chang
Format: Article
Language:English
Subjects:
Applications programs
Arrays
Capacitors
Coiling
coils
loops
Microwaves
mobile applications
Mobile communication systems
Optimization
Receivers
transfer efficiency
wireless power transfer
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Hyon Kang, Seok
Won Jung, Chang
description ABSTRACT This letter presents a wireless power transfer (WPT) system with a planar receiver for mobile applications. The proposed WPT system includes a source coil, a transmitter spiral (Tx coil), a rectangular receiver coil (Rx coil), and a rectangular load coil. In order to make a compact receiver, the Rx coil is placed in front of the load coil with a gap of 2 mm. In addition, the relation between the transfer efficiency of WPT system and the capacitance value of Rx coil is established. Experimental results show that by optimizing the capacitor embedded in Rx coil, it is capable of achieving a very high transfer efficiency. With an optimized capacitor Cx = 785 pF on the Rx coil, the transfer efficiency of the proposed system is comparable to a WPT system using a metamaterial (MTM) array. The proposed WPT system operates at 6.78 MHz. © 2016 Wiley Periodicals, Inc. Microwave Opt Technol Lett 58:1817–1819, 2016
doi_str_mv 10.1002/mop.29921
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The proposed WPT system includes a source coil, a transmitter spiral (Tx coil), a rectangular receiver coil (Rx coil), and a rectangular load coil. In order to make a compact receiver, the Rx coil is placed in front of the load coil with a gap of 2 mm. In addition, the relation between the transfer efficiency of WPT system and the capacitance value of Rx coil is established. Experimental results show that by optimizing the capacitor embedded in Rx coil, it is capable of achieving a very high transfer efficiency. With an optimized capacitor Cx = 785 pF on the Rx coil, the transfer efficiency of the proposed system is comparable to a WPT system using a metamaterial (MTM) array. The proposed WPT system operates at 6.78 MHz. © 2016 Wiley Periodicals, Inc. 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subjects Applications programs
Arrays
Capacitors
Coiling
coils
loops
Microwaves
mobile applications
Mobile communication systems
Optimization
Receivers
transfer efficiency
wireless power transfer
title Efficiency optimization of WPT system with a planar receiver for mobile applications
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