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Proceedings Paper

Transcutaneous optical power converter for implantable devices
Author(s): Toshiyo Tamura; A. K. M. Shamsuddin; Atsushi Kawarada; Tatsuo Togawa; P. Ake Oberg
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Paper Abstract

An optical transcutaneous power converter has been developed for the power supply of implanted devices. It consists of a light source, optical fiber system and a photo detector. The light source is either a halogen lamp or continuous high-power laser diode which illuminated skin surface. The light penetrates through the skin to the solar cells. The preliminary experiments with a slice of tissue in between the light source and the solar cells showed that the power transfer efficiency was 40% in comparison to direct illumination of the solar cells. The maximum electric power obtained with a slice of tissue simulating the skin was about 8 mW at a laser diode run at a power of 100 mW. The electric power transferred is enough to supply low power consuming CMOS circuits.

Paper Details

Date Published: 1 February 1994
PDF: 6 pages
Proc. SPIE 2084, Biomedical Optoelectronic Devices and Systems, (1 February 1994); doi: 10.1117/12.167291
Show Author Affiliations
Toshiyo Tamura, Tokyo Medical and Dental Univ. (Japan)
A. K. M. Shamsuddin, Tokyo Medical and Dental Univ. (Japan)
Atsushi Kawarada, Tokyo Medical and Dental Univ. (Japan)
Tatsuo Togawa, Tokyo Medical and Dental Univ. (Japan)
P. Ake Oberg, Linkoeping Univ. (Sweden)

Published in SPIE Proceedings Vol. 2084:
Biomedical Optoelectronic Devices and Systems
Nathan I. Croitoru; Riccardo Pratesi, Editor(s)

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