A 13.56MHz Wireless Power Transfer System with Dual-Output Regulated Active Rectifier for Implantable Medical Devices

被引：0

作者：

Yang, Fu-Bin ^{[1
]}

Fuh, Jonathan ^{[1
]}

Chen, Po-Hung ^{[1
]}

机构：

[1] Natl Chiao Tung Univ, Inst Elect, Hsinchu, Taiwan

来源：

2018 IEEE 61ST INTERNATIONAL MIDWEST SYMPOSIUM ON CIRCUITS AND SYSTEMS (MWSCAS) | 2018年

关键词：

Active rectifier; wireless power transfer; resonant coupling; pulse skip modulation; automatic digital offset compensation; implantable medical devices;

D O I：

暂无

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

In this paper, a 13.56 MHz wireless power transfer system with dual-output regulated active rectifier is developed for implantable medical devices. The rectifier employs pulse-skip modulation (PSM) to regulate two output voltages without using power consuming low dropout regulators (LDOs). The proposed automatic digital offset compensation adjusts both turn-on timing and turn-off timing to compensate the turn-on and turn-off delays of the comparator. The simulation results show that the proposed active rectifier achieves 94% efficiency. The entire wireless power transmission system including power amplifier, resonant tanks, and rectifier, has 67.2% maximum power conversion efficiency (PCE). Compared to the conventional approach with ideal LDOs, 19.2% efficiency improvement is obtained.

引用

页码：440 / 443

页数：4

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