Synchronous rectification for contactless power supply utilizing Mn-Zn ferrite core coils

Hidekazu Miura, Shinsuke Arai, Fumihiro Sato, Hidetoshi Matsuki, Tadakuni Sato

研究成果: Article査読

12 被引用数 (Scopus)

抄録

Contactless power supply systems transmit electric power by electromagnetic induction with a pair of coils. The efficiency and the output voltage depend on parameters of coils. We studied the best parameter values that realize stable high efficiency contactless power supply. In the application with low output voltage, the voltage drop of the diodes becomes dominant power loss. A synchronous rectification was proposed as a solution of this problem. Our contactless power supply system for an artificial heart operates at 190 kHz. We use planar coils with Mn-Zn ferrite cores. Highly stable output voltage and 88% maximum efficiency were realized.

本文言語English
論文番号10Q702
ジャーナルJournal of Applied Physics
97
10
DOI
出版ステータスPublished - 2005 5 15

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)
  • Physics and Astronomy(all)

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