Thermosensitive transformer as temperature and output power control device

Yasuyuki Kakubari, Fumihiro Sato, Hidetoshi Matsuki, Tadakuni Sato

Research output: Contribution to journalArticlepeer-review


A temperature and output power control transformer that is applied to an implanted device called artificial sphincter that is composed of shape memory alloy (SMA) is examined. The artificial sphincter is using phase transformation of SMA depending on temperature. To prevent overheating, we examined temperature control utilizing thermosensitive magnetic ferrite. As the temperature rises, the power decreases that is conveyed through the transformer that uses thermosensitive ferrite as its core. If the heater attached to SMA is provided with the electric power through the transformer, it is possible to control the temperature of SMA.

Original languageEnglish
Pages (from-to)4045-4047
Number of pages3
JournalIEEE Transactions on Magnetics
Issue number10
Publication statusPublished - 2005 Oct


  • Curie-temperature
  • Temperature control
  • Thermosensitive ferrite


Dive into the research topics of 'Thermosensitive transformer as temperature and output power control device'. Together they form a unique fingerprint.

Cite this