Implantable transformer for an artificial heart utilizing amorphous magnetic fibers

H. Matsuki, M. Yamaguchi, T. Watanabe, K. Murakami, K. Nadehara, T. Yamamoto

Research output: Contribution to journalArticlepeer-review

20 Citations (Scopus)


It is a very serious problem for an implantable artificial heart to receive energy from outside the body. A new implantable transformer with a plain weave structure was proposed by using amorphous magnetic fibers. The transformer has the following features: (i) a thin, planar shape; (ii) high flexibility; and (iii) low waste heat in the range of several tens kHz. Appropriate conditions for the size of the transformer were shown experimentally. The transformer (70×30×1 mm3) of a trial design can supply a power of 6 W. The temperature rise of the transformer based on iron loss is considered to be negligibly small.

Original languageEnglish
Pages (from-to)5859-5861
Number of pages3
JournalJournal of Applied Physics
Issue number10
Publication statusPublished - 1988


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