Title :
A high efficiency CMOS rectifier with ON-OFF response compensation for wireless power transfer in biomedical applications
Author :
Qiang Li ; Jing Wang ; Inoue, Y.
Author_Institution :
Grad. Sch. of Inf., Production & Syst., Waseda Univ., Kitakyushu, Japan
Abstract :
This paper presents a high efficiency comparator-based CMOS rectifier for wireless power transfer in biomedical implant devices. By using a novel ON-OFF compensation technology, the conduction time of the switch can be optimized and the reverse current has been reduced efficiently. The proposed rectifier was verified using a standard 0.18μm CMOS process. Results shows that the rectifier can achieve a maximum voltage conversion efficiency of 96% and power efficiency near to 91%.
Keywords :
CMOS integrated circuits; biomedical electronics; comparators (circuits); compensation; inductive power transmission; prosthetics; rectifiers; ON-OFF response compensation technology; biomedical implant device; efficiency 96 percent; high efficiency comparator- based CMOS rectifier; size 0.18 mum; wireless power transfer; CMOS integrated circuits; Implants; Logic gates; Schottky diodes; Switches; Wireless communication; Wireless sensor networks; Energy harvesting system; active diode; peak voltage conversion efficiency; rectifier; wide range;
Conference_Titel :
Integrated Circuits (ISIC), 2014 14th International Symposium on
Conference_Location :
Singapore
DOI :
10.1109/ISICIR.2014.7029489
