An 87% Efficient Wireless Powered System Using Adaptively Controlled Active Rectifier for Smart Electronics

被引：0

作者：

Chandrarathna, Seneke Chamith ^{[1
]}

Qraiqea, Hamdi ^{[1
]}

Jana, Mohammad Sami ^{[1
]}

Lee, Jong-Wook ^{[1
]}

机构：

[1] Kyung Hee Univ, Sch Elect & Informat, Yongin, South Korea

来源：

2022 IEEE INTERNATIONAL SYMPOSIUM ON RADIO-FREQUENCY INTEGRATION TECHNOLOGY (RFIT 2022) | 2022年

关键词：

Wireless power; adaptively-controlled; active rectifier matrix; digital compensation;

D O I：

10.1109/RFIT54256.2022.9882475

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：

This brief presents an efficient wireless powered system (WPS) for smart electronics, including battery charging. To enhance the performance of WPS, we have utilized an adaptively-controlled active rectifier matrix (AARM) that helps to regulate the output voltage over a wide-range load variation. In addition, we propose a digital compensation circuit that adjusts both turn-on and turn-off times to compensate for delays of the comparator when it turns off and on. The proposed WPS is implemented in a 0.18 mu m high-voltage Bipolar-CMOS-DMOS(BCD) process. The WPS can achieve 270 mW of the peak (a) power while flowing 135 mA of the load current. The measured peak conversion efficiency is S7% at 0. 89mW of the output power.

引用

页码：144 / 146

页数：3

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