半导体学报2008，Vol.29Issue(2)：293-297,5.
一种用于UHF RFID的低压高效电源产生电路
A Low-Voltage, High Efficiency Power Generation Structure for UHF RFID
庞则桂 1庄奕琪 1李小明 1李俊1
作者信息
- 1. 西安电子科技大学微电子学院,宽禁带半导体材料与器件教育部重点实验室,西安,710071
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摘要
Abstract
This paper presents a new power generation structure that can provide DC energy tor passive UHF RFID with high sensitivity and high efficiency. The structure is designed with 0.18μm standard CMOS technology, including two charge pumps,a current reference,and a group of bias circuits. Low-voltage performance is improved thanks to the bias structure,which eliminates the threshold voltage drop and body-effect of conventional circuits. A 350mV minimum input level is required to generate a 1.5V power supply for a 100kΩ load with power conversion efficiency (PCE) of 22%. PCE up to 29.8% is achieved with a 60kΩ load. Simulation results show that the new circuit is superior to conventional charge pumps.关键词
UHF RFID/电源产生/电荷泵/低压/CMOSKey words
UHF RFID/power generation/charge pump/low voltage/CMOS分类
信息技术与安全科学引用本文复制引用
庞则桂,庄奕琪,李小明,李俊..一种用于UHF RFID的低压高效电源产生电路[J].半导体学报,2008,29(2):293-297,5.
