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http://dx.doi.org/10.5573/ieie.2014.51.7.111

Development of Wireless Power Transceiver with Bi-directional DC-DC Converter  

Moon, Young-Jin (Department of Electronics and Computer Engineering, Hanyang University)
Yoo, Changsik (Department of Electronics and Computer Engineering, Hanyang University)
Publication Information
Journal of the Institute of Electronics and Information Engineers / v.51, no.7, 2014 , pp. 111-121 More about this Journal
Abstract
A bi-directional DC-DC converter has been developed for a wireless power transceiver which enables a device to receive and transmit power wireless. Generally, the wireless power transceiver requires two DC-DC covnerter and two external inductors. However, the proposed wireless power transceiver requires only one DC-DC converter and one inductor, allowing small form-factor. The bi-directional DC-DC converter implemented in $0.35{\mu}m$ BCDMOS process operates as a buck converter at the wireless power receiving mode and the power efficiency is 91% when the ouput power is 3W. In the wireless power transmitter mode, the DC-DC converter operates as a boost converter. With the bi-directional DC-DC converter and the proposed efficiency maximizing techniques, the power efficiency of wireless power transceiver is 81.7% in receiver mode and 76.5% in transmitter mode.
Keywords
Wireless Power Transceiver; Bi-directional DC-DC Converter; Power Efficiency;
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Times Cited By KSCI : 3  (Citation Analysis)
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