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

Content Provider	IEEE Xplore Digital Library
Author	Kiyoyama, K. Tanaka, Y. Onoda, M. Fukushima, T. Tanaka, T. Koyanagi, M.
Copyright Year	2008
Description	Author affiliation: Dept. of Bioeng. & Robot., Tohoku Univ. (Fukushima, T.; Tanaka, T.; Koyanagi, M.) \|\| Dept. of R&D Center, Terumo Corp. (Onoda, M.) \|\| Dept. of Micro/Nano-Machining Res. & Educ. Center, Tohoku Univ., Sendai (Kiyoyama, K.) \|\| Dept. of Inst. for Innovative Sci. & Technol., Nagasaki Inst. of Appl. Sci., Nagasaki (Tanaka, Y.)
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 0.18 mum CMOS technology, achieved less than 530 muW with a 1.8 V and the chip core size of 0.14 $mm^{2}.$ The system uses inductive coupling at 13.56 MHz with internal and external coils. Experimental results confirm its stable power supply to the implantable unit over a coil distance of 0.5 to 10 mm.
Starting Page	325
Ending Page	328
File Size	859822
Page Count	4
File Format	PDF
ISBN	9781424426041
DOI	10.1109/ASSCC.2008.4708793
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-11-03
Publisher Place	Japan
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Power control CMOS technology Coils Wireless communication Power dissipation Humans Communication system control Monitoring Power transmission Power supplies CMOS Biomedical circuit wireless interface cortical monitoring wireless power transmission biomedical inductive coupling body-implantable devices closed-loop power control battery-less mixed-signal
Content Type	Text
Resource Type	Article

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