Integrated low-loss CMOS active rectifier for wirelessly powered devices

被引：192

作者：

Lam, Yat-Hei ^{[1
]}

Ki, Wing-Hung ^{[1
]}

Tsui, Chi-Ying ^{[1
]}

机构：

[1] Hong Kong Univ Sci & Technol, Dept Elect & Comp Engn, Hong Kong, Hong Kong, Peoples R China

来源：

IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS II-EXPRESS BRIEFS | 2006年 / 53卷 / 12期

关键词：

AC-DC power conversion; radio-frequency identification (RFID); rectifiers; symmetrical matching; wireless power transmission;

D O I：

10.1109/TCSII.2006.885400

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：

A low-loss CMOS full-wave active rectifier is presented. It consists of two dynamically biased and symmetrically matched active diodes each realized by an nMOS switch driven by a 2-ns voltage comparator with reverse-current control. With a load of 1.8-k Omega, the rectified dc voltage is 3.22 V and 1.2 V for a 13.56 MHz ac sinusoidal input voltage of 3.5 V and 1.5 V respectively. It is fabricated in a 0.35-mu m CMOS process with an active area of 0.0055 mm(2), with no low-threshold devices and on-chip passive components.

引用

页码：1378 / 1382

页数：5

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