Free-Positioning Magnetic Resonance Wireless Power Transfer System for Biomedical Devices

被引：0

作者：

Na, Kyungmin ^{[1
]}

Kim, Jieun ^{[1
]}

Park, Young-Jin ^{[1
]}

机构：

[1] Korea Electrotechnol Res Inst, Electromed Device Res Ctr, Ansan, South Korea

来源：

2019 IEEE MTT-S WIRELESS POWER TRANSFER CONFERENCE (WPTC) / IEEE PELS WORKSHOP ON EMERGING TECHNOLOGIES: WIRELESS POWER (WOW) / WIRELESS POWER WEEK (WPW 2019) | 2019年

关键词：

Magnetic resonance; Wireless power transfer; WPT; Bimedical applications;

D O I：

10.1109/wptc45513.2019.9055698

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

This paper proposes a free-positioning magnetic resonance wireless power transfer system for biomedical devices. A bowl-shaped transmitting coil, which generates a uniform magnetic field in the charge area, is used for free-positioning. Two spiral receiver coils are attached on both sides of Rx device to be able to receive power both sides of the device. Due to the very limited receiver space, the receiver circuitry consists of a rectifier and a battery charging IC and a controller. To maximize the power conversion efficiency at the receiver, transmission power is controlled at the transmitter to minimize the rectifier-to battery charger voltage difference using wireless communication feedback during the power transmission. The proposed system shows a maximum 15.7% overall system efficiency with a Li-Ion battery.

引用

页码：497 / 501

页数：5

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