A closed-loop power control function for bio-implantable devices

Kouji Kiyoyama, Yoshito Tanaka, Mashahiro Onoda, Takafumi Fukushima, Tetsu Tanaka, Mitsumasa Koyanagi

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

3 Citations (Scopus)

Abstract

A wireless communication system with a closed-loop power control function for bio-implantable applications is described which keeps the power dissipation of implantable unit at the allowable level for human body. The function is controlled by monitoring an excessive current at the implantable unit and limiting the power transmission at the external interrogator unit. The implantable unit with the closed-loop power control function has been fabricated in a standard O.l8μm CMOS technology, achieved less than 530μW with a 1.8V and the chip core size of 0.14mm 2. The system uses inductive coupling at 13.56MHz with internal and external coils. Experimental results confirm its stable power supply to the implantable unit over a coil distance of 0.5 to 10mm.

Original languageEnglish
Title of host publicationProceedings of 2008 IEEE Asian Solid-State Circuits Conference, A-SSCC 2008
Pages325-328
Number of pages4
DOIs
Publication statusPublished - 2008 Dec 1
Event2008 IEEE Asian Solid-State Circuits Conference, A-SSCC 2008 - Fukuoka, Japan
Duration: 2008 Nov 32008 Nov 5

Publication series

NameProceedings of 2008 IEEE Asian Solid-State Circuits Conference, A-SSCC 2008

Other

Other2008 IEEE Asian Solid-State Circuits Conference, A-SSCC 2008
CountryJapan
CityFukuoka
Period08/11/308/11/5

Keywords

  • Battery-less
  • Biomedical circuit
  • Biomedical inductive coupling
  • Body-implantable devices
  • CMOS.
  • Closed-loop power control
  • Cortical monitoring
  • Mixed-signal
  • Wireless interface
  • Wireless power transmission

ASJC Scopus subject areas

  • Hardware and Architecture
  • Electrical and Electronic Engineering

Fingerprint Dive into the research topics of 'A closed-loop power control function for bio-implantable devices'. Together they form a unique fingerprint.

  • Cite this

    Kiyoyama, K., Tanaka, Y., Onoda, M., Fukushima, T., Tanaka, T., & Koyanagi, M. (2008). A closed-loop power control function for bio-implantable devices. In Proceedings of 2008 IEEE Asian Solid-State Circuits Conference, A-SSCC 2008 (pp. 325-328). [4708793] (Proceedings of 2008 IEEE Asian Solid-State Circuits Conference, A-SSCC 2008). https://doi.org/10.1109/ASSCC.2008.4708793