Dual-Band Wireless Power Transmitter with Reconfigurable Power Amplifier and "Decoupling Ring"

被引：0

作者：

Shao, Yaoxia ^{[1
]}

Liu, Ming ^{[2
]}

Zhang, Huan ^{[1
]}

Ma, Chengbin ^{[1
]}

机构：

[1] Shanghai Jiao Tong Univ, Univ Michigan Shanghai Jiao Tong Univ Joint Inst, Shanghai, Peoples R China

[2] Princeton Univ, Dept Elect Engn, Princeton, NJ 08544 USA

来源：

IECON 2020: THE 46TH ANNUAL CONFERENCE OF THE IEEE INDUSTRIAL ELECTRONICS SOCIETY | 2020年

关键词：

Multi mode; dual band; multistandard; wireless power transfer; inductive power transfer; MHz;

D O I：

10.1109/iecon43393.2020.9255300

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

There are 2 wireless power standards for the mobile device market: Qi standard and AirFuel standard with frequencies of hundreds of kHz and 6.78 MHz. This paper presents a dual-band wireless transmitter operating at both 200 kHz and 6.78 MHz. A dual-band reconfigurable PA with Class E and half-bridge modes is introduced to decrease the size of transmitter. Meanwhile, the eddy current loss model of parallel connected dual-band coils is established to provide guidance for coil design. Finally, a dual-band charging pad with specially designed "decoupling ring" is proposed, which can effectively reduce the extra loss of dual-band operation.

引用

页码：3889 / 3894

页数：6

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