A current-mode voltage regulator with an embedded sub-threshold reference for a passive UHF RFID transponder

被引：0

作者：

刘忠奇 ^{[1
]}

张春 ^{[2
]}

李永明 ^{[2
]}

王志华 ^{[2
]}

机构：

[1] Department of Electronic Engineering Tsinghua University

[2] Institute of Microelectronics Tsinghua University

来源：

半导体学报 | 2010年 / 31卷 / 06期

关键词：

RFID; tag; regulator;

D O I：

暂无

中图分类号：

TM44 [稳定器];

学科分类号：

080801 ;

摘要：

<正>This paper presents a current-mode voltage regulator for a passive UHF RFID transponder.The passive tag power is extracted from RF energy through the RF-to-DC rectifier.Due to huge variations of the incoming RF power, the rectifier output voltage should be regulated to achieve a stable power supply.By accurately controlling the current flowing into the load with an embedded sub-threshold reference,the regulated voltage varies in a range of 1-1.3 V from -20 to 80℃,and a bandwidth of about 100 kHz is achieved for a fast power recovery.The circuit is fabricated in UMC 0.18μm mixed-mode CMOS technology,and the current consumption is only 1μA.

引用

页码：105 / 108

页数：4