An implantable neurostimulator with an integrated high-voltage inductive powerrecovery frontend  

作　　者：王远 张旭 刘鸣 李鹏 陈弘达 

机构地区：[1]Institute of Semiconductors Chinese Academy of Sciences

出　　处：《Journal of Semiconductors》2014年第10期163-170,共8页半导体学报（英文版）

基　　金：Project supported by the National Natural Science Foundation of China(Nos.61076023,61178051);the National Basic Research Program of China(No.2011CB933203);the High-Tech-Program of China(No.2012AA030308)

摘　　要：This paper present a highly-integrated neurostimulator with an on-chip inductive power-recovery fron- tend and high-voltage stimulus generator. In particular, the power-recovery frontend includes a high-voltage full- wave rectifier （up to 100 V AC input）, high-voltage series regulators （24/5 V outputs） and a linear regulator （1.8/ 3.3 V output） with bandgap voltage reference. With the high voltage output of the series regulator, the proposed neurostimulator could deliver a considerably large current in high electrode-tissue contact impedance. This neu- rostimulator has been fabricated in a CSMC 1 μm 5/40/700 V BCD＇process and the total silicon area including pads is 5.8 mm2. Preliminary tests are successful as the neurostimulator shows good stability under a 13.56 MHz AC supply. Compared to previously reported works, our design has advantages of a wide induced voltage range （26-100 V）, high output voltage （up to 24 V） and high-level integration, which are suitable for implantable neu- rostimulators.This paper present a highly-integrated neurostimulator with an on-chip inductive power-recovery fron- tend and high-voltage stimulus generator. In particular, the power-recovery frontend includes a high-voltage full- wave rectifier （up to 100 V AC input）, high-voltage series regulators （24/5 V outputs） and a linear regulator （1.8/ 3.3 V output） with bandgap voltage reference. With the high voltage output of the series regulator, the proposed neurostimulator could deliver a considerably large current in high electrode-tissue contact impedance. This neu- rostimulator has been fabricated in a CSMC 1 μm 5/40/700 V BCD＇process and the total silicon area including pads is 5.8 mm2. Preliminary tests are successful as the neurostimulator shows good stability under a 13.56 MHz AC supply. Compared to previously reported works, our design has advantages of a wide induced voltage range （26-100 V）, high output voltage （up to 24 V） and high-level integration, which are suitable for implantable neu- rostimulators.

关 键 词：high-voltage techniques implantable biomedical devices inductive power transmission linear regu- lator NEUROSTIMULATION 

分 类 号：TN402[电子电信—微电子学与固体电子学]