Title :
A high-efficient energy harvest chain for ultra-low power passive UHF RFID tags
Author :
Ke Lin ; Bo Wang ; Xin´an Wang ; Jiali Hou ; Chaoxun Wang ; Xing Zhang
Author_Institution :
Shenzhen Grad. Sch., Key Lab. of Microsyst., Peking Univ., Shenzhen, China
Abstract :
This paper presents a high-efficient energy harvest chain for ultra-low power passive UHF RFID tags. In this design, a high-efficiency differential-drive CMOS rectifier is adopted, a novel voltage limiter is used to provide a stable limiting voltage against temperature and process variation, and a voltage reference using peaking current source together with a high performance regulator with dynamic tail current source are utilized to meet the low-power low-voltage requirement. Measurement results show that the total current dissipation of our proposed energy harvest chain is less than 2.25μA with a peak power conversion efficiency (PCE) of 51.34%@ -10dBm. This high-efficient energy harvest chain is designed and implemented in TSMC 0.18 μm CMOS process with an area of 290μm×140μm.
Keywords :
CMOS integrated circuits; energy harvesting; integrated circuit reliability; low-power electronics; radiofrequency identification; rectifying circuits; reference circuits; telecommunication power management; TSMC CMOS process; differential drive CMOS rectifier; high efficient energy harvesting chain; limiting voltage; process variation; size 0.18 mum; size 140 mum; size 290 mum; temperature variation; ultra low power passive UHF RFID tags; voltage reference; Abstracts; Baseband; CMOS integrated circuits; Power demand; Rectifiers; Regulators; Transponders;
Conference_Titel :
Solid-State and Integrated Circuit Technology (ICSICT), 2014 12th IEEE International Conference on
Conference_Location :
Guilin
Print_ISBN :
978-1-4799-3296-2
DOI :
10.1109/ICSICT.2014.7021596
