A low drop-out regulator for subcutaneous electrical stimulation of nanofibers used in muscle prosthesis

Yi Huang, Fanpeng Kong, Joseph Freeman, Laleh Najafizadeh

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Scopus citations

Abstract

A low-dropout regulator (LDO) for the electrical stimulation of ionic electroactive polymers (iEAPs) used in subcutaneous muscle prosthesis is presented. The special requirement of the application and the characteristics of iEAPs impose several design challenges for the stimulator. In this paper, these challenges are discussed and solutions are provided. The proposed LDO, designed and simulated in IBM 0.13-μm CMOS technology, uses external-capacitor-less architecture to enable a fully on-chip solution for providing stable stimulation across a wide load range, as required by the properties of iEAPs. The LDO also offers precise line and load regulations, as well as improved power supply rejection (PSR) to suppress the supply noise when the LDO is powered up through wireless power transfer (WPT) links. Simulation results are provided suggesting that the proposed LDO can be used as a stable and precise stimulation source for controlling the movement of iEAPs with a potential application in muscle prostheses.

Original languageEnglish (US)
Title of host publicationIEEE Biomedical Circuits and Systems Conference
Subtitle of host publicationEngineering for Healthy Minds and Able Bodies, BioCAS 2015 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781479972333
DOIs
StatePublished - Dec 4 2015
Event11th IEEE Biomedical Circuits and Systems Conference, BioCAS 2015 - Atlanta, United States
Duration: Oct 22 2015Oct 24 2015

Publication series

NameIEEE Biomedical Circuits and Systems Conference: Engineering for Healthy Minds and Able Bodies, BioCAS 2015 - Proceedings

Other

Other11th IEEE Biomedical Circuits and Systems Conference, BioCAS 2015
Country/TerritoryUnited States
CityAtlanta
Period10/22/1510/24/15

All Science Journal Classification (ASJC) codes

  • Instrumentation
  • Electrical and Electronic Engineering
  • Biotechnology
  • Biomedical Engineering

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