Magnetic element
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United States of America Patent
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Aug 21, 2007
Grant Date -
Dec 28, 2006
app pub date -
Jun 27, 2006
filing date -
Jun 28, 2005
priority date (Note) -
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status (Latency Note)
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Abstract
A magnetic element including coils; a first core and a second core each of which has a planar plate portion, outer leg portions and a middle leg portion which is inserted into aforesaid coil; and an intermediate core to form a closed magnetic circuit which is disposed between the aforesaid first core and the aforesaid second core in a manner connecting integrally with the aforesaid first core and aforesaid second core. In addition, the magnetic element is made into a configuration that has relations of S1.ltoreq.S3 and also S1.ltoreq.S2 when a cross-sectional area of the middle leg portion of the aforesaid first core is S1, a cross-sectional area of the aforesaid intermediate core is S2 and a cross-sectional area of the middle leg portion of the aforesaid second core is S3.
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