DC bias current enhancement of multilayer chip inductors by using a nonmagnetic air gap

Title
DC bias current enhancement of multilayer chip inductors by using a nonmagnetic air gap
Author(s)
김기현김진우이준식남백일[남백일]
Keywords
ZN-CU FERRITE
Issue Date
201211
Publisher
KOREAN PHYSICAL SOC
Citation
JOURNAL OF THE KOREAN PHYSICAL SOCIETY, v.61, no.10, pp.1691 - 1695
Abstract
To enhance the DC characteristics of multilayer chip (MLC) inductors, we optimized the effective permeability of the magnetic core material. However, the effective permeability value is not easily tuned by optimizing the magnetic materials. The effective permeability of the core material in a MLC inductor can be controlled by inserting a nonmagnetic air gap between the coil layers without changing the magnetic core material. A typical MLC inductor with a 10-turn planar coil with dimensions of 2.0 mm x 1.2 mm x 1.0 mm (w x l x t) including an air gap layer which placed at the center of planar coil was designed and simulated for various thicknesses. The DC characteristics (I-DC at Delta L 30%) were enhanced from 300 mA to 700 mA with the insertion of an air gap and with increasing air-gap thickness.
URI
http://hdl.handle.net/YU.REPOSITORY/27000http://dx.doi.org/10.3938/jkps.61.1691
ISSN
0374-4884
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이과대학 > 물리학과 > Articles
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