Title :
Power management unit for battery assisted passive RFID tag
Author :
Che, Wenquan ; Chen, Weijie ; Meng, Dai ; Wang, Xiongfei ; Tan, Xiaobo ; Yan, N. ; Min, Hwang-Ki
Author_Institution :
State Key Lab. of ASIC & Syst., Fudan Univ., Shanghai, China
Abstract :
A power management unit for a battery assisted passive radio frequency identification tag is proposed. The key building block is a two-stage wake-up circuit with 23 nA sleep current and process, voltage, temperature insensitive wake-up detection performance. Wireless energy recycle is realised with up to 50 ??A charge current. The circuits make it possible to use tag package compatible thin-film batteries.
Keywords :
battery management systems; radiofrequency identification; telecommunication power supplies; battery assisted passive RFID tag; power management; radio frequency identification; two-stage wake-up circuit; wake-up detection performance; wireless energy recycling;
Journal_Title :
Electronics Letters
DOI :
10.1049/el.2010.0113
