JOURNAL BROWSE
Search
Advanced SearchSearch Tips
Resistive Grounding Technique of Heat Sink for Reducing Radiation Noise
facebook(new window)  Pirnt(new window) E-mail(new window) Excel Download
 Title & Authors
Resistive Grounding Technique of Heat Sink for Reducing Radiation Noise
Ahn, Chang-Hoi; Oh, JaeHyun;
  PDF(new window)
 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;
 Language
English
 Cited by
 References
1.
C.R. Paul and k. B. Hardin, "Diagnosis and reduction of conducted noise emission," IEEE transactions on electromagnetic compatibility, Vol. 30, no. 4, pp. 553- 560, 1988. crossref(new window)

2.
M. Mardiguian, Controlling radiated emissions by design, 2nd ed., Kluwer academic publishers, Boston, USA, 2001.

3.
A. Damiano, G. Gatto, I. Marongiu, and A. Piroddi, "A heat sink model for EMI resonance frequency determination", Power electronics specialists conference, Vol. 1, pp. 273-277, 2004.

4.
J. F. Dawson, A. C. Marvin, S. J. Porter, A. Nothofer, J. E. Will, S. Hopkins, "The effect of grounding on radiated emissions from heatsinks, IEEE international symposium on electromagnetic compatibility, Vol.2, pp. 1248-1252, 2001.

5.
N. J. Ryan, B. Chambers, D. A. Stone, "FDTD modeling of heatsink RF characteristics for EMC mitigation", IEEE transactions on electromagnetic compatibility, Vol. 44, no 3, 2002

6.
R. Li, And L. C. Zhang, "Heatsink grounding effect on radiated emission of electronic device", 3rd international symposium on electromagnetic compatibility, pp. 704-709, 2002.

7.
G. Felic and R. Evans, "Study of heat sink EMI effects in SMPS circuits", IEEE international Symposium on Electromagnetic Compatibility, Vol. 1, pp. 254-259, 2001.

8.
K. Mainali, R. Oruganti, "Conducted EMI Mitigation Techniques for Switch-Mode Power Converters: A Survey", IEEE Transactions on Power Electronics, Vol. 25, no. 9, pp. 2344-2356, 2010. crossref(new window)

9.
T. Williams, "EMC for product designers", Butterworth- Heinemann, 2001.