电动滑板车用600W 6.78MHz无线充电器

2020 IEEE PELS Workshop on Emerging Technologies: Wireless Power Transfer (WoW) Pub Date : 2020-11-15 DOI:10.1109/WoW47795.2020.9291303

C. Kwan, J. Arteaga, S. Aldhaher, D. Yates, P. Mitcheson

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引用次数: 5

摘要

本文提出了一种工作频率为6.78 MHz的600w电动滑板车无线充电方案。在发射端，使用一个负载无关的带GaN晶体管的EF级推挽(差动)逆变器驱动一个33厘米的方形铜管线圈。一个带有硅肖特基二极管的全波电压三倍器D级整流器连接到一个24厘米乘26厘米的梯形接收线圈(也由铜管制成)，该线圈安装在踏板车的钢框架下方。为了减少钢底盘内的涡流和磁损耗，电动滑板车车架部分用铜带屏蔽。在原位充电功率为600 W时，IPT系统实现了84%的dc - dc效率。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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A 600W 6.78MHz Wireless Charger for an Electric Scooter

This paper presents a 600 W electric scooter wireless charging solution operating at a frequency of 6.78 MHz. At the transmitter end, a load-independent Class EF push-pull (differential) inverter with GaN transistors was used to drive a 33 cm square-shaped copper pipe coil. A full-wave voltage-tripler Class D rectifier with silicon Schottky diodes was connected to a 24 cm-by-26 cm trapezoidal receiver coil (also made of copper pipe) mounted underneath the steel frame of the scooter. In order to reduce the eddy current and magnetic losses in the steel chassis, parts of the electric scooter frame were shielded with copper tape. With the battery recharging in situ at 600 W, the IPT system achieved a DC-to-DC efficiency of 84 %.

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来源期刊

2020 IEEE PELS Workshop on Emerging Technologies: Wireless Power Transfer (WoW)

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