Design of Multiple-Charge-Pump System for Implantable Biomedical Applications

Shiau Pin Lin, Ming-Dou Ker

研究成果: Conference contribution同行評審

4 引文 斯高帕斯(Scopus)

摘要

Circuit design to implement a multiple-charge-pump (MCP) system in a low-voltage standard CMOS process is proposed, that can successfully support the desired power sources for implantable monopolar biphasic stimulator. A negative charge pump (CP) circuit with the four-phase cross-couple structure is introduced to suppress return-back leakage, and thus its power efficiency is improved. This MCP system provides the stimulator with three power sources of +9V, -9V, and -2.7V, simultaneously. Closed-loop operation helps for regulating the output voltage sources (+9V and -9V) with a maximum loading current of 5.5mA for stimulus drivers, and 1-MA current for the control circuits of the stimulator. The proposed MCP system has been fabricated in a 0.18-μm 1.8-V /3.3-V CMOS process, as well as successfully verified in in-vivo animal tests with stimulator together.

原文English
主出版物標題2018 IEEE Biomedical Circuits and Systems Conference, BioCAS 2018 - Proceedings
發行者Institute of Electrical and Electronics Engineers Inc.
ISBN(電子)9781538636039
DOIs
出版狀態Published - 20 十二月 2018
事件2018 IEEE Biomedical Circuits and Systems Conference, BioCAS 2018 - Cleveland, United States
持續時間: 17 十月 201819 十月 2018

出版系列

名字2018 IEEE Biomedical Circuits and Systems Conference, BioCAS 2018 - Proceedings

Conference

Conference2018 IEEE Biomedical Circuits and Systems Conference, BioCAS 2018
國家United States
城市Cleveland
期間17/10/1819/10/18

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