Title :
A high efficiency rectifier for inductively power transfer application
Author :
Qiong Wei Low;Liter Siek;Mi Zhou
Author_Institution :
VIRTUS - Centre of Excellence in IC Design, School of Electrical and Electronic Engineering, Nanyang Technological University, Singapore
Abstract :
This paper presents a high efficiency rectifier for inductively power transfer application. The efficiency of the rectifier is optimized by utilizing unbalanced biasing technique in the proposed wide swing cascode comparator controlled switch to suppress the reverse leakage current. The design is implemented in standard CMOS 0.18um AMS process. The targeted application is for telemetry, for use in the ISM band between 125 kHz and 134 kHz. The proposed rectifier achieves a peak power conversion efficiency (PCE) of 94.9% in the frequency range of 125kHz - 2MHz with an AC amplitude ranges from 1.2 V to 2.5V under maximum load current condition. It can source a maximum load current of 55mA and operates well under all process corners conditions.
Keywords :
"CMOS integrated circuits","CMOS technology","Process control","Chlorine","Access control","Rectifiers","Semiconductor device modeling"
Conference_Titel :
Very Large Scale Integration (VLSI-SoC), 2015 IFIP/IEEE International Conference on
Electronic_ISBN :
2324-8440
DOI :
10.1109/VLSI-SoC.2015.7314428
