Implementation of low loss Mn-Zn ferrite cores for power electronics applications

H. H. Nien, T. J. Liang, Chuan-Kuei Huang, S. K. Changchien, H. W. Shieh

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Citations (Scopus)

Abstract

Simultaneous introduction of CaO, Co2O3 and MoO 3 dopants into low loss Manganese-Zinc soft ferrites remarkably improves the power loss characteristic of the ferrite cores. Since the driving frequency of switching power supplies has been raised from several KHz to more than 1 MHz, the power loss of the magnetic devices must be reduced. The eddy current loss of soft ferrite will take a major proportion of iron loss in these high-frequency switching power supplies. An attempt was made to develop low loss Mn-Zn polycrystalline ferrites by increasing resistivity to decrease eddy current loss. Doped Mn-Zn ferrites were prepared by conventional ceramic technique and sintered at the temperature of 1320°C for 1-8 hours respectively in air. The DC resistivity was measured by using four-probe methods on sintered disks whose sides were polished and coated with a thin layer of silver paste as a good contact material. The magnetic permeability at room temperature was measured by using an impedance analyzer (Hewlett-Packard, Model HP4294A) with HP-16047 test fixture. The core loss of Mn0.58Zn 0.37Co0.01Fe2.04O4 ferrite doped with 0.08 wt% MoO3 is 370 mW/c.c at 500 KHz/ 70mT.

Original languageEnglish
Title of host publication2006 IEEE Power India Conference
Pages713-716
Number of pages4
Volume2005
DOIs
Publication statusPublished - 2005 Dec 1
Event2006 IEEE Power India Conference - New Delhi, India
Duration: 2006 Apr 102006 Apr 12

Other

Other2006 IEEE Power India Conference
CountryIndia
CityNew Delhi
Period06-04-1006-04-12

Fingerprint

Power electronics
Ferrite
Ferrites
Eddy currents
Magnetic devices
Magnetic permeability
Switching frequency
Manganese
Silver
Zinc
Doping (additives)
Iron
Temperature
Air

All Science Journal Classification (ASJC) codes

  • Engineering(all)

Cite this

Nien, H. H., Liang, T. J., Huang, C-K., Changchien, S. K., & Shieh, H. W. (2005). Implementation of low loss Mn-Zn ferrite cores for power electronics applications. In 2006 IEEE Power India Conference (Vol. 2005, pp. 713-716). [1632595] https://doi.org/10.1109/POWERI.2006.1632595
Nien, H. H. ; Liang, T. J. ; Huang, Chuan-Kuei ; Changchien, S. K. ; Shieh, H. W. / Implementation of low loss Mn-Zn ferrite cores for power electronics applications. 2006 IEEE Power India Conference. Vol. 2005 2005. pp. 713-716
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Nien, HH, Liang, TJ, Huang, C-K, Changchien, SK & Shieh, HW 2005, Implementation of low loss Mn-Zn ferrite cores for power electronics applications. in 2006 IEEE Power India Conference. vol. 2005, 1632595, pp. 713-716, 2006 IEEE Power India Conference, New Delhi, India, 06-04-10. https://doi.org/10.1109/POWERI.2006.1632595

Implementation of low loss Mn-Zn ferrite cores for power electronics applications. / Nien, H. H.; Liang, T. J.; Huang, Chuan-Kuei; Changchien, S. K.; Shieh, H. W.

2006 IEEE Power India Conference. Vol. 2005 2005. p. 713-716 1632595.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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Nien HH, Liang TJ, Huang C-K, Changchien SK, Shieh HW. Implementation of low loss Mn-Zn ferrite cores for power electronics applications. In 2006 IEEE Power India Conference. Vol. 2005. 2005. p. 713-716. 1632595 https://doi.org/10.1109/POWERI.2006.1632595