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
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
收藏
页码:3889 / 3894
页数:6
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