Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Yung-Chien Wang0
Lan-Chin Hsieh0
Roger Hsieh0
Yi-Min Huang0
Date of Patent
November 24, 2009
0Patent Application Number
121272230
Date Filed
May 27, 2008
0Patent Primary Examiner
Patent abstract
In one embodiment, a choke coil has a magnetic core, a coil, and magnetic material. The core has a first permeability which is from about 350 to 1200. The coil is wrapped around the core. The magnetic material surrounds the coil and has a second permeability. The first permeability is higher than the second permeability. The second permeability is from about 5 to 30.
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