A fail-safe thin-film current sensor using a flux saturable ring core

Y. Fujiyama; Y. Yamada; H. Kikuchi; M. Yamaguchi; K. I. Arai

doi:10.1109/20.617959

A fail-safe thin-film current sensor using a flux saturable ring core

Y. Fujiyama, Y. Yamada, H. Kikuchi, M. Yamaguchi, K. I. Arai

New Industry Creation Hatchery Center (NICHe)

Research output: Contribution to journal › Article › peer-review

7 Citations (Scopus)

Abstract

We have developed a fail-safe thin-film current sensor using a flux saturable ring core. The sensor consists of a transformer unit composed of a saturable core, primary and secondary coils, and a load coil which surrounds the transformer unit. The sensor is suitable for the purpose of a fail-safe system. The chip size is 4mm × 4mm. A transmission efficiency of 60% was obtained when the carrier signal was 3Vpp-lMHz sine wave. The secondary voltage of the sensor successfully dropped by 90% when a 100mA load current was applied to 20-tum load coil.

Original language	English
Pages (from-to)	3406-3408
Number of pages	3
Journal	IEEE Transactions on Magnetics
Volume	33
Issue number	5 PART 1
DOIs	https://doi.org/10.1109/20.617959
Publication status	Published - 1997

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A fail-safe thin-film current sensor using a flux saturable ring core

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