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Volume & Issue no: Volume 6, Issue 6, November - December 2017

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Title:
Wireless Power Transfer (WPT) systems for charging consumer devices
Author Name:
SUJAY RAVI KALE, K.Chandra obula reddy
Abstract:
Abstract Wireless power transfer (WPT) is an emerging technology with an increasing number of potential applications totransfer power from a transmitter to a mobile receiver over a relatively large air gap. However, its widespread application is hampereddue to the relatively low efficiency of currentWireless power transfer (WPT) systems. This study presents a concept to maximizethe efficiency as well as to increase the amount of extractable power of a WPT system operating in non resonant operation. Theproposed method is based on actively modifying the equivalent secondary-side load impedance by controlling the phase-shift ofthe active rectifier and its output voltage level. The presented hardware prototype represents a complete wireless charging system,including a dc–dc converter which is used to charge a battery at the output of the system. Experimental results are shown for theproposed concept in comparison to a conventional synchronous rectification approach. The presented optimization method clearlyoutperforms state-of-the-art solutions in terms of efficiency and extractable power. Keywords:Dc-dc power converters, impedancematching, inductive power transmission, phase-shift control, reactive powercontrol, rectifiers, wireless charging.
Cite this article:
SUJAY RAVI KALE, K.Chandra obula reddy , " Wireless Power Transfer (WPT) systems for charging consumer devices" , International Journal of Emerging Trends & Technology in Computer Science (IJETTCS) , Volume 6, Issue 6, November - December 2017 , pp. 126-132 , ISSN 2278-6856.
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International Journal of Emerging Trends & Technology in Computer Science (IJETTCS)
ISSN 2278-6856
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