一种利用二次线圈质量因子的新型无线电力传输系统金属探测器

2012 IEEE MTT-S International Microwave Workshop Series on Innovative Wireless Power Transmission: Technologies, Systems, and Applications Pub Date : 2012-05-10 DOI:10.1109/IMWS.2012.6215802

S. Fukuda, H. Nakano, Y. Murayama, T. Murakami, O. Kozakai, K. Fujimaki

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引用次数: 45

摘要

介绍了一种新型的无线电力传输(WPT)异物检测系统。外来金属只有放在初级线圈和次级线圈之间时才被加热。通过将金属置于该位置，次级线圈(Q2)的质量因子下降而不是其他参数，因此Q2是检测金属的合适参数。我们开发了二次装置中不需要任何电池的Q2测量电路，并开发了一个带有Q2测量电路的WPT原型系统。使用该系统，可以在加热前检测到可能被加热的外来金属。

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A novel metal detector using the quality factor of the secondary coil for wireless power transfer systems

A novel foreign-metal detection-system for wireless power transfer (WPT) is described. Foreign metal was heated only when placed between the primary coil and the secondary coil. By having the metal in that position, the quality factor of the secondary coil (Q2) decreased rather than other parameters, so Q2 was a suitable parameter for detecting the metal. We developed s Q2 measurement circuit that works without any battery in the secondary device, and also developed a prototype WPT system with the Q2 measurement circuit. Using this system, foreign metal that might be heated could be detected before heating.

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来源期刊

2012 IEEE MTT-S International Microwave Workshop Series on Innovative Wireless Power Transmission: Technologies, Systems, and Applications

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