A NEW PLANAR MICROTRANSFORMER FOR USE IN MICRO-SWITCHING CONVERTERS

被引:61
作者
MINO, M [1 ]
YACHI, T [1 ]
TAGO, A [1 ]
YANAGISAWA, K [1 ]
SAKAKIBARA, K [1 ]
机构
[1] NIPPON TELEGRAPH & TEL PUBL CORP, MUSASHINO ELECT COMMUN LAB, ELECT COMMUN LABS, MUSASHINO, TOKYO 180, JAPAN
关键词
D O I
10.1109/20.144755
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
A new planar microtransformer for use in microswitching converters of portable equipment is described. This microtransformer, consisting of planar coils and CoZrRe amorphous magnetic layers on a Si substrate, is fabricated by a dry process. It is about 0.3-mm thick, and 3 x 4 mm2. Its coils provide a relatively high inductance of 33 nH/mm2. This microtransformer is implemented in a forward converter, which operates well at 32 MHz.
引用
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页码:1969 / 1973
页数:5
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