バルク非晶質金属誘導デバイス

Japanese Patent JP2006505143

A

A bulk amorphous metal inductive device comprises a magnetic core having plurality of low-loss bulk ferromagnetic amorphous metal magnetic components assembled in juxtaposed relationship to form at least one magnetic circuit and secured in position, e.g. by banding or potting. The device has one or more electrical windings and may be used as a transformer or inductor in an electronic circuit. Each component comprises a plurality of similarly shaped layers of amorphous metal strips bonded together to form a polyhedrally shaped part. The low core losses of the device, e.g. a loss of at most about 12 W/kg when excited at a frequency of 5 kHz to a peak induction level of 0.3 T, make it especially useful for application in power conditioning circuits operating in switched mode at frequencies of 1 kHz or more. Air gaps are optionally interposed between the mating faces of the constituent components of the device to enhance its energy storage capacity for inductor applications. The inductive device is easily customized for specialized magnetic applications, e.g. for use as a transformer or inductor in power conditioning electronic circuitry employing switch-mode circuit topologies and switching frequencies ranging from 1 kHz to 200 kHz or more.

De Christophalo, Nicholas Jay
Fish, gordon yee
Hasegawa, Ryusuke
Tachitra, Sesh Vui

JP2004550537A

February 09, 2006

October 22, 2003

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Methograss Incorporated

H01F27/24; H01F27/245; H01F41/02

JPS61195013U	1986-12-04
JPH01112022U	1989-07-27
JP2002025831A	2002-01-25
JPS6384106A	1988-04-14
JPH05335154A	1993-12-17

WO2001084564A2	2001-11-08
WO2002084676A1	2002-10-24

Kazuo Shamoto
Tadashi Masui
Yasushi Kobayashi
Akio Chiba
Hiroyuki Tomita
Shigeo Takeuchi

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