Evaluation of power transfer efficiency with ferrite sheets in WPT system

Tae Hyung Kim, Sehwa Yoon, Jong Gwan Yook, Gi Ho Yun, Woong Yong Lee

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

7 Citations (Scopus)

Abstract

Proper selection of magnetic material is very important to maximize the power transfer efficiency (PTE) in case of the conductor in the receiving coil. The effects of the relative permeability and loss tangent of the magnetic material are investigated. A relatively low complex permeability ensures a high efficiency in wireless power transfer system (WPT) at 6.78 MHz. To maximize the PTE, the properties of the selected ferrite sheet should include a relative permeability higher than 200, a thickness of 600 um, and a loss tangent less than 0.01. Although 2-layer ferrite sheets show lower PTE than those of complex of complex of ferrite sheets, they have relatively high permeabilities and low core losses, which are beneficial in e real environments.

Original languageEnglish
Title of host publicationWPTC 2017 - Wireless Power Transfer Conference
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781509045853
DOIs
Publication statusPublished - 2017 Jun 19
Event2017 Wireless Power Transfer Conference, WPTC 2017 - Taipei, Taiwan, Province of China
Duration: 2017 May 102017 May 12

Publication series

NameWPTC 2017 - Wireless Power Transfer Conference

Other

Other2017 Wireless Power Transfer Conference, WPTC 2017
CountryTaiwan, Province of China
CityTaipei
Period17/5/1017/5/12

Fingerprint

Ferrite
Magnetic materials

All Science Journal Classification (ASJC) codes

  • Computer Networks and Communications
  • Electrical and Electronic Engineering
  • Energy Engineering and Power Technology

Cite this

Kim, T. H., Yoon, S., Yook, J. G., Yun, G. H., & Lee, W. Y. (2017). Evaluation of power transfer efficiency with ferrite sheets in WPT system. In WPTC 2017 - Wireless Power Transfer Conference [7953894] (WPTC 2017 - Wireless Power Transfer Conference). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/WPT.2017.7953894
Kim, Tae Hyung ; Yoon, Sehwa ; Yook, Jong Gwan ; Yun, Gi Ho ; Lee, Woong Yong. / Evaluation of power transfer efficiency with ferrite sheets in WPT system. WPTC 2017 - Wireless Power Transfer Conference. Institute of Electrical and Electronics Engineers Inc., 2017. (WPTC 2017 - Wireless Power Transfer Conference).
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abstract = "Proper selection of magnetic material is very important to maximize the power transfer efficiency (PTE) in case of the conductor in the receiving coil. The effects of the relative permeability and loss tangent of the magnetic material are investigated. A relatively low complex permeability ensures a high efficiency in wireless power transfer system (WPT) at 6.78 MHz. To maximize the PTE, the properties of the selected ferrite sheet should include a relative permeability higher than 200, a thickness of 600 um, and a loss tangent less than 0.01. Although 2-layer ferrite sheets show lower PTE than those of complex of complex of ferrite sheets, they have relatively high permeabilities and low core losses, which are beneficial in e real environments.",
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Kim, TH, Yoon, S, Yook, JG, Yun, GH & Lee, WY 2017, Evaluation of power transfer efficiency with ferrite sheets in WPT system. in WPTC 2017 - Wireless Power Transfer Conference., 7953894, WPTC 2017 - Wireless Power Transfer Conference, Institute of Electrical and Electronics Engineers Inc., 2017 Wireless Power Transfer Conference, WPTC 2017, Taipei, Taiwan, Province of China, 17/5/10. https://doi.org/10.1109/WPT.2017.7953894

Evaluation of power transfer efficiency with ferrite sheets in WPT system. / Kim, Tae Hyung; Yoon, Sehwa; Yook, Jong Gwan; Yun, Gi Ho; Lee, Woong Yong.

WPTC 2017 - Wireless Power Transfer Conference. Institute of Electrical and Electronics Engineers Inc., 2017. 7953894 (WPTC 2017 - Wireless Power Transfer Conference).

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

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AB - Proper selection of magnetic material is very important to maximize the power transfer efficiency (PTE) in case of the conductor in the receiving coil. The effects of the relative permeability and loss tangent of the magnetic material are investigated. A relatively low complex permeability ensures a high efficiency in wireless power transfer system (WPT) at 6.78 MHz. To maximize the PTE, the properties of the selected ferrite sheet should include a relative permeability higher than 200, a thickness of 600 um, and a loss tangent less than 0.01. Although 2-layer ferrite sheets show lower PTE than those of complex of complex of ferrite sheets, they have relatively high permeabilities and low core losses, which are beneficial in e real environments.

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Kim TH, Yoon S, Yook JG, Yun GH, Lee WY. Evaluation of power transfer efficiency with ferrite sheets in WPT system. In WPTC 2017 - Wireless Power Transfer Conference. Institute of Electrical and Electronics Engineers Inc. 2017. 7953894. (WPTC 2017 - Wireless Power Transfer Conference). https://doi.org/10.1109/WPT.2017.7953894