ARIRANG NEWS2015.7.18--- 韩国科学家开发全向无线充电

ARIRANG NEWS2015.7.18---韩国科学家开发全向无线充电
發佈日期：2015年7月18日
Mobile devices such as smartphones and laptops have made life more convenient on many levels. But the biggest challenge is still keeping our batteries charged.
But that may be about to get easier， thanks to some local researchers that have taken wireless charging technology to the next level.
Park Se－young reports.
It′s common to see people carrying battery packs or searching for plugs for their chargers.
Wireless chargers are an option， but they only work if the user is within about ten centimeters of the charger and the device is in certain， fixed positions.
However， a research team at KAIST has developed an omni－directional wireless charging technology that works like a WiFi zone.
Their creation charges devices at a distance of 50－centimeters from the power source， regardless of the position of the device.
What′s more， it works in low frequency magnetic fields that are not harmful to humans.
The research team placed the charger′s sending and receiving coils in a crisscross pattern to create rotating magnetic fields. This enables wireless charging in any direction with six degrees of freedom.
The wireless charger that comes with the Samsung Galaxy S6 has only one degree of freedom， which means it can only charge the phone if it′s in a fixed position.
Just like a WiFi zone， the charger can charge 30 smartphones or five laptops at once，... with a maximum power transfer efficiency rate of 34－percent.
The research team published their findings in the June issue of IEEE Transactions on Power Electronics. They are currently working with a local technology firm housed at KAIST to commercialize the technology for use in cafes and offices.
Park Se－young， Arirang News.
移动设备，如智能手机和笔记本电脑已经对许多层面的生活更加便利。
但最大的挑战仍是保持我们的电池充电。
但是，这可能即将变得更容易，这要归功于采取了无线充电技术更上一层楼一些地方的研究人员。 朴世荣报告。
它经常可以看到人们携带电池组或寻找插头为他们的充电器。
无线充电器是一种选择，但它们仅当用户距离充电器大约10厘米，该装置是在一定的，固定的位置上工作。
然而，一个研究小组在韩国科学技术院开发了一个全方位的无线充电技术，它的工作原理就像一个无线区域。
他们的创作充电而不管该设备的位置的设备的50厘米从功率源的距离，。
更重要的是，它工作在低频磁场是对人体无害。
该研究小组放在充电器的发送和接收线圈纵横交错创建旋转磁场。 这使得在具有六个自由度的任意方向的无线充电。

无线充电器附带的三星Galaxy S6只有一个自由度，这意味着它只能为手机充电，如果它在一个固定的位置。
就像一个无线网络区，充电一次可以收取30智能手机或五个笔记本电脑，......与34％的最大功率转换效率率。
该研究小组发表了他们的研究结果在电力电子技术交易的六月号。
他们目前正在与当地技术公司设在KAIST商业化的技术在网吧及办公室使用。
朴世荣，阿里郎新闻。