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 / 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：
摘要：
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
收藏
页码：105 / 108
页数：4
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