Impedance Matching using Interspiraled Coils for Wireless Power Transfer

被引：0
|
作者：
Zhaksylyk, Yelzhas [1 ]
Hanke, Ulrik [1 ]
Azadmehr, Mehdi [1 ]
机构：
[1] Univ South Eastern Norway, Dept Microsyst, Borre, Norway
来源：
2020 IEEE PELS WORKSHOP ON EMERGING TECHNOLOGIES: WIRELESS POWER TRANSFER (WOW) | 2020年
关键词：
Wireless power transfer; inductive coupling; impedance matching; resonance frequency; efficiency;
D O I：
10.1109/wow47795.2020.9291325
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
This paper presents switchable interspiraled coils suited for active impedance matching in magnetic resonance wireless power transfer. The impedance matching network consists of single-turn coils placed in-between turns of a spiral resonator coil. The inductance variation allows matching over a range of distances in Wireless Power Transfer (WPT) systems. Measurements of a 9 turn coil with radius of 103 mm is presented. The measured self-inductances of the single-turn coils vary between 43-510 nH. Measurement of the power transfer efficiency verifies that the proposed interspiraled coils offer an active impedance matching in the under-coupled region for distance changes between 7 cm to 25 cm. The interspiraled coils can be realized on one side of a PCB and the other side can be used for control circuitry and routing, making it compact in size and potentially cheaper in production.
引用
收藏
页码：346 / 349
页数：4
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