A 69.3% Efficiency, 6.78-MHz Wireless Power Delivery System with 0X/1X Regulating Rectifier and Reconfigurable Power Amplifier

被引：0
|
作者：
Fuh, Jonathan [1 ]
Yang, Fu-Bin [1 ]
Chen, Po-Hung [1 ]
机构：
[1] Natl Chiao Tung Univ, Inst Elect, Hsinchu, Taiwan
来源：
2019 IEEE ASIAN SOLID-STATE CIRCUITS CONFERENCE (A-SSCC) | 2019年
关键词：
wireless power transfer; regulating active rectifier; resonant coupling; reconfigurable power amplifier;
D O I：
10.1109/a-sscc47793.2019.9056928
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
In this paper, we present a 6.78-MHz highefficiency wireless power transfer system with a reconfigurable class-D power amplifier and a 0X/1X regulating rectifier. The proposed reconfigurable power amplifier delivers 0.25X/1X output power by adjusting the power-stage configuration to improve system efficiency. To enhance the receiver efficiency, the proposed 0X/1X regulating rectifier with adaptive offset compensation achieves both voltage rectification and voltage regulation in a single conversion stage. The measurement results demonstrate a 90.1% peak receiver efficiency and a 69.3% peak system efficiency. The system provides the load circuit with 5-V regulated output and 250-mW maximum output power.
引用
收藏
页码：37 / 38
页数：2
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