← 返回 JSSC 论文列表JSSC 2009第6期Analog Circuits0.35μm CMOS
An Efficiency-Enhanced CMOS Rectifier With Unbalanced-Biased Comparators for Trans
提出一种效率增强的CMOS整流器,用于高电流生物医学植入物的经皮能量传输。
1.5MHz输入下峰值电压转换率95%,功率效率至少82%
CMOS整流器生物医学植入效率优化比较器控制开关经皮能量传输
▸创新点1:采用不平衡偏置比较器,通过优化比较器的偏置电压,显著减少了整流器的反向漏电流,从而在不同输入幅度下实现了更高的功率效率。
▸创新点2:最小化导通路径压降,通过设计比较器控制的开关,有效降低了导通路径上的电压损失,确保了单向电流流动并提高了整体效率。
▸创新点3:自启动且适应低输入幅度,该整流器能够在低输入幅度下自动启动并稳定工作,扩展了其在低功耗应用中的适用性。
▸创新点4:峰值电压转换比达到95%,在1.5 MHz输入频率和1.2 V幅度下,整流器的功率效率至少为82%,展示了其在高效能量转换中的优异性能。
Abstract
Student Member , IEEE, and Hoi Lee , Member , IEEE
Abstract—This paper presents an efficiency-enhanced inte-
grated full-wave CMOS rectifier for the transcutaneous power
transmission in high-current biomedical implants. The com-
parator-controlled switches are developed to minimize the voltage
drop along the conducting path while achieving the unidirec-
tional current flow. The proposed unbalanced-biasing scheme
also minimizes the reverse leakage current of the rectifier under
different input amplit