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http://dx.doi.org/10.5370/JEET.2014.9.5.1724

Resistive Grounding Technique of Heat Sink for Reducing Radiation Noise  

Ahn, Chang-Hoi (Dept. of Electronic Engineering, Yeungnam University)
Oh, JaeHyun (Gyeongbuk Research Institute of Vehicle Embedded Technology (GIVET))
Publication Information
Journal of Electrical Engineering and Technology / v.9, no.5, 2014 , pp. 1724-1728 More about this Journal
Abstract
Heat sink has been used to help an electrical device operate in normal temperature condition. But heat sink radiates unwanted electromagnetic wave, which may cause electromagnetic interference problem. A resistance loaded grounding technique is proposed to reduce electromagnetic wave radiation by a heat sink. Numerical simulations are accomplished to find optimal loading resistance. Also electromagnetic fields radiated by from a heat sink are measured and compared with the simulation results. The test results verify the usefulness of the proposed technique.
Keywords
Heat sink; EMI; Ground;
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