题目/Title：A Wireless Power-Efficient Charger Chip with Closed-Loop Controlling Mechanism for Implantable Biomedical System

作者/Author：
                        Xingyu Fu,Songping Mai,Zhihua Wang

会议/Conference：EDSSC 2018

地点/Location：Shenzhen, China

年份/Issue Date：2018.6-8 June

页码/pages：pp. 1 - 2

摘要/Abstract：
The requirement of fast, steady and safe chargers has become the most important issue for implantable power management. This work proposes a closed-loop control charger consisted of a high efficient rectifier, charging control circuit and PWM signal generators. It makes the charging voltage automatically follow the battery voltage by a feedback loop, which reduces the energy consumption caused by large voltage difference between the constant charging voltage and battery voltage. A prototype was fabricated in 0.8渭m HV CMOS technology, and the measured maximum overall efficiency is 70.67%.