Reduction of eddy current losses in inductive transmission systems with ferrite sheets

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• 作者：Matthias Maaß ; Andreas Griessner ; Viktor Steixner…
• 关键词：Inductive transmission systems ; Cochlear implants ; Eddy current losses ; Ferrite shield ; Series–parallel resonant converter
• 刊名：BioMedical Engineering OnLine
• 出版年：2017
• 出版时间：December 2017
• 年：2017
• 卷：16
• 期：1
• 全文大小：1829KB
• 刊物类别：Engineering
• 刊物主题：Biomedical Engineering; Biomaterials; Biotechnology; Biomedical Engineering/Biotechnology;
• 出版者：BioMed Central
• ISSN：1475-925X
• 卷排序：16

文摘

BackgroundImprovements in eddy current suppression are necessary to meet the demand for increasing miniaturization of inductively driven transmission systems in industrial and biomedical applications. The high magnetic permeability and the simultaneously low electrical conductivity of ferrite materials make them ideal candidates for shielding metallic surfaces. For systems like cochlear implants the transmission of data as well as energy over an inductive link is conducted within a well-defined parameter set. For these systems, the shielding can be of particular importance if the properties of the link can be preserved.