什么是無線充電器?它的特點是什么?
無線充電器是指不用(yong)傳統的(de)充(chong)電(dian)電(dian)源線連(lian)接(jie)到需要充(chong)電(dian)的(de)終端設(she)備上(shang)的(de)充(chong)電(dian)器,采用(yong)了最新(xin)的(de)無(wu)線充(chong)電(dian)技術,通過(guo)使用(yong)線圈之(zhi)間(jian)產生的(de)交變磁場,傳輸電(dian)能,電(dian)感(gan)耦合技術將會成為連(lian)接(jie)充(chong)電(dian)基站和設(she)備的(de)橋梁。
特點
1.從理論來(lai)說,無(wu)(wu)(wu)線(xian)充電(dian)技(ji)術(shu)對人(ren)體(ti)安全無(wu)(wu)(wu)害(hai)處,無(wu)(wu)(wu)線(xian)充電(dian)使(shi)用(yong)的(de)共(gong)(gong)振(zhen)原理是(shi)磁場共(gong)(gong)振(zhen),只(zhi)在以(yi)同一頻率共(gong)(gong)振(zhen)的(de)線(xian)圈之(zhi)間(jian)傳(chuan)輸,而其他(ta)裝(zhuang)置無(wu)(wu)(wu)法接受波(bo)段(duan),另外,無(wu)(wu)(wu)線(xian)充電(dian)技(ji)術(shu)使(shi)用(yong)的(de)磁場本身就是(shi)對人(ren)體(ti)無(wu)(wu)(wu)害(hai)的(de)。但無(wu)(wu)(wu)線(xian)充電(dian)技(ji)術(shu)畢竟是(shi)新(xin)型的(de)充電(dian)技(ji)術(shu),很多人(ren)都會(hui)(hui)擔(dan)憂無(wu)(wu)(wu)線(xian)充電(dian)技(ji)術(shu)會(hui)(hui)像當(dang)初Wi-Fi和手機天線(xian)桿剛出(chu)現一樣(yang),其實技(ji)術(shu)本身是(shi)無(wu)(wu)(wu)害(hai)的(de)。
2.無線(xian)充電(dian)(dian)(dian)技(ji)術利用磁共(gong)振(zhen)在(zai)充電(dian)(dian)(dian)器(qi)與設(she)備(bei)之間的(de)電(dian)(dian)(dian)場和磁場中傳輸(shu)電(dian)(dian)(dian)能(neng),線(xian)圈和電(dian)(dian)(dian)容器(qi)則在(zai)充電(dian)(dian)(dian)器(qi)與設(she)備(bei)之間形成共(gong)振(zhen)。
3.這(zhe)一(yi)系統可以在未來得到廣(guang)泛應(ying)用,例如(ru)針對(dui)(dui)電(dian)(dian)動汽車的(de)充(chong)電(dian)(dian)區以及(ji)針對(dui)(dui)電(dian)(dian)腦芯片的(de)電(dian)(dian)量傳輸。采用這(zhe)項技(ji)術研制(zhi)的(de)充(chong)電(dian)(dian)系統所(suo)需(xu)要的(de)充(chong)電(dian)(dian)時間只(zhi)有當(dang)前的(de)一(yi)百五十(shi)分之(zhi)一(yi)。
4.轉(zhuan)化率一直是很多人擔心的問題,麻省(sheng)理工學院通過(guo)研究表明(ming),無(wu)線(xian)(xian)充(chong)電(dian)(dian)技(ji)術(shu)的損(sun)耗比起有(you)線(xian)(xian)充(chong)電(dian)(dian)技(ji)術(shu)來說(shuo)更低(di)。無(wu)線(xian)(xian)充(chong)電(dian)(dian)轉(zhuan)化率比起有(you)線(xian)(xian)要高(gao)幾(ji)個百(bai)分點。高(gao)轉(zhuan)化,也是無(wu)線(xian)(xian)充(chong)電(dian)(dian)器得以在全球進行應用的關鍵因素。但(dan)無(wu)線(xian)(xian)充(chong)電(dian)(dian)技(ji)術(shu)也受(shou)到距(ju)離(li)的限制,未來發展,必然需(xu)要解決遠距(ju)離(li)傳送(song)對于波段和(he)磁(ci)場范圍的精準定位問題。
5.核心芯片是(shi)無線充電技(ji)術在(zai)產品應用的(de)難(nan)點之一(yi)。精(jing)準輻射(she)范圍控制,磁場頻率(lv)大小,其它控制等都是(shi)由(you)芯片實現。
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