Link Efficiency-Led Design of Mid-Range Inductive Power Transfer Systems

被引:0
|
作者
Kwan, Christopher H. [1 ]
Kkelis, George [1 ]
Aldhaher, Samer [1 ]
Lawson, James [1 ]
Yates, David C. [1 ]
Luk, Patrick C. -K. [2 ]
Mitcheson, Paul D. [1 ]
机构
[1] Imperial Coll London, Dept Elect & Elect Engn, London, England
[2] Cranfield Univ, Power Engn Ctr, Cranfield MK43 0AL, Beds, England
关键词
DC-to-load efficiency; converters; mid-range wireless power;
D O I
暂无
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
For mid-range inductive power transfer (IPT) systems, improving link efficiency entails operating in the multi-MHz region in order to increase coil Q factors. However, designing end-to-end systems at such frequencies poses challenges associated with the efficiency of the power electronics. This paper presents a set of design principles with the aim of achieving maximal DC-to-load efficiency of such systems. These include the selection of semiconductor devices and power converter topologies that are suitable for high frequencies. Through these design methods, a 6.78MHz ISM-band IPT system has been implemented, transferring 120W of power across 30 cm with a DC-to-load efficiency of similar to 70 %.
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页数:7
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