Title :
Semi-active high-efficient CMOS rectifier for wireless power transmission
Author :
Kim, Stephen T. ; Song, Taejoong ; Choi, Jaehyouk ; Bien, Franklin ; Lim, Kyutae ; Laskar, Joy
Author_Institution :
Georgia Electr. Design Center, Georgia Inst. of Technol., Atlanta, GA, USA
Abstract :
A semi-active high-efficient (SA-HE) CMOS rectifier with reverse leakage control has been developed. It employs a cross-coupled NMOS pair and two leakage control comparators to reduce reverse charge leakage current. In addition, the adaptive body bias control technique is utilized to improve the reliability of the rectifier. The SA-HE rectifier has been fabricated in a 0.18um CMOS technology and shows 15% improvement over conventional rectifiers.
Keywords :
CMOS integrated circuits; comparators (circuits); rectifiers; SA-HE rectifier; cross-coupled NMOS pair; leakage control comparator; reverse leakage control; semiactive high-efficient CMOS rectifier; size 0.18 micron; wireless power transmission; Biosensors; CMOS technology; Leakage current; MOS devices; Power transmission; Radio frequency; Rectifiers; Schottky diodes; Voltage; Wireless sensor networks; Rectifier; bio-implantable devices; semi-active; wireless power transmission; wireless sensor;
Conference_Titel :
Radio Frequency Integrated Circuits Symposium (RFIC), 2010 IEEE
Conference_Location :
Anaheim, CA
Print_ISBN :
978-1-4244-6240-7
DOI :
10.1109/RFIC.2010.5477403
