Application of nanocrystalline Fe (or Co-Fe)-Hf-O magnetic films with high electrical resistivity to micro DC-DC converters

被引：22

作者：

Sato, T ^{[1
]}

Komai, E ^{[1
]}

Yamasawa, K ^{[1
]}

Hatanai, T ^{[1
]}

Makino, A ^{[1
]}

机构：

[1] ALPS ELECT CO LTD,CENT RES LAB,NAGAOKA,NIIGATA 940,JAPAN

来源：

IEEE TRANSACTIONS ON MAGNETICS | 1997年 / 33卷 / 05期

关键词：

D O I：

10.1109/20.617927

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

High resistivity magnetic films, such as reactive sputtered Fe-Hf-O and Co-Fe-Hf-O, were applied to multilayered micro reactors for high frequency operation de-de converters. For a comparison, an amorphous Co-Ta-Hf film with good soft magnetic properties was also investigated. The micro reactor had the highest quality factor(the lowest loss) when using Co-Fe-Hf-O film with the highest resistivity. In 5MHz operation of de-de converters using these micro reactors, the highest conversion efficiency was obtained when using Co-Fe-Hf-O film.

引用

页码：3310 / 3312

页数：3

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