A power-efficient switched-capacitor stimulating system for electrical/optical deep-brain stimulation

Hyung Min Lee, Ki Yong Kwon, Wen Li, Maysam Ghovanloo

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

8 Citations (Scopus)

Abstract

Deep-brain stimulation (DBS) has been proven as an effective therapy to alleviate Parkinson's disease, tremor, and dystonia. Towards a less invasive head-mounted DBS, we utilize an inductive transcutaneous link to provide sufficient power without size, lifetime, and discomfort of chest-mounted battery-powered traditional DBS. The next step is to adopt aggressive power-management schemes to further improve the DBS efficiency. Current-controlled stimulation (CCS) enables precise charge control and safe operation, but it has low power efficiency due to the dropout voltage across current sources [1,2]. Switched-capacitor stimulation (SCS), proposed in [3], takes advantage of both high efficiency and safety using capacitor banks to transfer charge to the tissue, but it requires an efficient on-chip capacitor charging system, directly from the inductive link. We present an integrated wireless SCS system-on-a-chip with inductive capacitor charging and charge-based stimulation capabilities, which can improve both stimulator (before electrodes) and stimulus (after electrodes) efficiencies in DBS.

Original languageEnglish
Title of host publication2014 IEEE International Solid-State Circuits Conference, ISSCC 2014 - Digest of Technical Papers
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages414-415
Number of pages2
ISBN (Print)9781479909186
DOIs
Publication statusPublished - 2014
Event2014 61st IEEE International Solid-State Circuits Conference, ISSCC 2014 - San Francisco, CA, United States
Duration: 2014 Feb 92014 Feb 13

Publication series

NameDigest of Technical Papers - IEEE International Solid-State Circuits Conference
Volume57
ISSN (Print)0193-6530

Other

Other2014 61st IEEE International Solid-State Circuits Conference, ISSCC 2014
CountryUnited States
CitySan Francisco, CA
Period14/2/914/2/13

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering

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    Lee, H. M., Kwon, K. Y., Li, W., & Ghovanloo, M. (2014). A power-efficient switched-capacitor stimulating system for electrical/optical deep-brain stimulation. In 2014 IEEE International Solid-State Circuits Conference, ISSCC 2014 - Digest of Technical Papers (pp. 414-415). [6757493] (Digest of Technical Papers - IEEE International Solid-State Circuits Conference; Vol. 57). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ISSCC.2014.6757493