An Overview of Regulation Topologies in Resonant Wireless Power Transfer Systems for Consumer Electronics or Bio-Implants

Yang Liu, Bin Li, Mo Huang, Zhijian Chen and Xiuyin Zhang
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Yang Liu: School of Electronics and Information Engineering, South China University of Technology, Wushan, Guangzhou 510641, China
Bin Li: School of Electronics and Information Engineering, South China University of Technology, Wushan, Guangzhou 510641, China
Mo Huang: School of Electronics and Information Engineering, South China University of Technology, Wushan, Guangzhou 510641, China
Zhijian Chen: School of Electronics and Information Engineering, South China University of Technology, Wushan, Guangzhou 510641, China
Xiuyin Zhang: School of Electronics and Information Engineering, South China University of Technology, Wushan, Guangzhou 510641, China

Energies, 2018, vol. 11, issue 7, 1-22

Abstract: Owing to its relatively high efficiency, extended transmission range, and less exposure to radio frequency radiation, near-field resonant wireless power transfer (R-WPT) has been widely used in consumer electronics and bio-implants. For most applications, a well-regulated output voltage is required against the coupling and loading variations, and thus a regulation scheme should be employed in an R-WPT system. To achieve an optimal receiver (RX) or overall efficiency, together with a reduced cost overhead, several regulation schemes have been proposed in recent years, where the regulation can be implemented at either the RX or transmitter (TX) side, or both. These regulation schemes have been reviewed and comprehensively discussed in this paper. Hence, the main contribution of this paper is to provide a guideline for designing the regulation scheme in R-WPT systems. Moreover, potential new topologies of regulation are investigated here.

Keywords: resonant wireless power transfer (R-WPT); regulation; rectifier; power amplifier (PA); receiver; transmitter (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2018
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (6)

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