A CMOS 13.56-MHz high-efficiency low-dropout-voltage 40-mW inductive link power supply utilizing on-chip delay-compensated voltage doubler rectifier and multiple LDOs for implantable medical devices

Xin-Hong Qian, Ming-Seng Cheng, Chung-Yu Wu
{"title":"A CMOS 13.56-MHz high-efficiency low-dropout-voltage 40-mW inductive link power supply utilizing on-chip delay-compensated voltage doubler rectifier and multiple LDOs for implantable medical devices","authors":"Xin-Hong Qian, Ming-Seng Cheng, Chung-Yu Wu","doi":"10.1109/ASSCC.2013.6691031","DOIUrl":null,"url":null,"abstract":"A near-field 13.56-MHz 20mA inductive energy transmission device with ferrite core spiral coils and CMOS power regulator is designed and tested. The power regulator is composed of active voltage doubler (VD) rectifier and low-dropout regulators (LDOs). In order to avoid large space requirement of coil and further increase its efficiency in the implantable medical devices (IMDs), the coils are constructed in the spiral shape with a ferrite core. In the VD with the comparator, the input offset voltage is adjustable for delay compensation and a start-up control circuit is added to achieve robust start-up mechanism. On-chip delay compensation control is implemented to prevent from reverse current conduction and increase the efficiency. Three fully-integrated LDOs with rectifier output voltage of 2V to 1.8V are realized: LDO for analog circuits (ALDO), LDO for digital circuits (DLDO) and LDO for reference-voltage circuits (RLDO). Thus the performance of individual LDO can be optimized. Both ALDO and RLDO have low crosstalk noise from DLDO. The measured ripple voltage of rectifier output is 10.4mV. The power conversion efficiency (PCE) of 85% with 20mA output current. The measured dropout voltage is 384mV. As compared with other designs, the proposed Inductive link power supply has lower ripple voltages and dropout voltage, and higher PCE.","PeriodicalId":296544,"journal":{"name":"2013 IEEE Asian Solid-State Circuits Conference (A-SSCC)","volume":"417 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2013-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"5","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2013 IEEE Asian Solid-State Circuits Conference (A-SSCC)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ASSCC.2013.6691031","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 5

Abstract

A near-field 13.56-MHz 20mA inductive energy transmission device with ferrite core spiral coils and CMOS power regulator is designed and tested. The power regulator is composed of active voltage doubler (VD) rectifier and low-dropout regulators (LDOs). In order to avoid large space requirement of coil and further increase its efficiency in the implantable medical devices (IMDs), the coils are constructed in the spiral shape with a ferrite core. In the VD with the comparator, the input offset voltage is adjustable for delay compensation and a start-up control circuit is added to achieve robust start-up mechanism. On-chip delay compensation control is implemented to prevent from reverse current conduction and increase the efficiency. Three fully-integrated LDOs with rectifier output voltage of 2V to 1.8V are realized: LDO for analog circuits (ALDO), LDO for digital circuits (DLDO) and LDO for reference-voltage circuits (RLDO). Thus the performance of individual LDO can be optimized. Both ALDO and RLDO have low crosstalk noise from DLDO. The measured ripple voltage of rectifier output is 10.4mV. The power conversion efficiency (PCE) of 85% with 20mA output current. The measured dropout voltage is 384mV. As compared with other designs, the proposed Inductive link power supply has lower ripple voltages and dropout voltage, and higher PCE.
查看原文
分享 分享
微信好友 朋友圈 QQ好友 复制链接
本刊更多论文
一种采用片上延迟补偿倍压整流器和多个ldo的CMOS 13.56 mhz高效低压降40mw感应链路电源,用于植入式医疗设备
设计并测试了一种采用铁氧体铁芯螺旋线圈和CMOS功率调节器的近场13.56 mhz 20mA感应能量传输装置。该功率调节器由有源倍压整流器(VD)和低压差调节器(ldo)组成。为了避免在植入式医疗器械(imd)中线圈对空间的要求过大,进一步提高线圈的效率,采用铁氧体铁芯的螺旋结构构造线圈。在带比较器的VD中,输入偏置电压可调以补偿延迟,并增加启动控制电路以实现鲁棒启动机制。采用片内延迟补偿控制,防止反向电流传导,提高效率。实现了三种完全集成的LDO,整流输出电压为2V至1.8V:模拟电路LDO (ALDO),数字电路LDO (DLDO)和参考电压电路LDO (RLDO)。因此,单个LDO的性能可以得到优化。ALDO和RLDO都具有来自DLDO的低串扰噪声。实测整流器输出纹波电压为10.4mV。功率转换效率(PCE)为85%,输出电流为20mA。测量的压降电压为384mV。与其他设计相比,该电感链路电源具有较低的纹波电压和降压,以及较高的PCE。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
求助全文
约1分钟内获得全文 去求助
来源期刊
自引率
0.00%
发文量
0
期刊最新文献
Future mobile society beyond Moore's Law A 691 Mbps 1.392mm2 configurable radix-16 turbo decoder ASIC for 3GPP-LTE and WiMAX systems in 65nm CMOS Collaborative innovation for future mobile applications A 0.5V 34.4uW 14.28kfps 105dB smart image sensor with array-level analog signal processing An 85mW 14-bit 150MS/s pipelined ADC with 71.3dB peak SNDR in 130nm CMOS
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
已复制链接
已复制链接
快去分享给好友吧!
我知道了
×
扫码分享
扫码分享
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1