USB-C 升級:充電功率從100W 提高 到240W - 3C
By Hazel
at 2021-05-27T00:17
at 2021-05-27T00:17
Table of Contents
USB-IF論壇今早宣布,USB-C 2.1修訂版將接口的充電功率將增加一倍以上,從100W提高
到240W
這意味著用戶將能夠使用USB-C接口為筆記本電腦等產品充電。
此前,USB-C 電力傳輸的最高功率為100 瓦,這無疑使該其受到了一些限制。有了240W
的功率
(USB-IF 稱之為“擴展功率範圍”或簡稱EPR),理論上可以通過USB-C 為一台外星人
m17 遊戲筆記本充電。
當然,要想使用新的規格,用戶需要新的USB-C充電器和電纜。USB-IF對新規格的部分要
求是:
“所有EPR電纜應以EPR電纜識別項目進行明顯識別”。一條電纜需要支持高達5A、50V才
符合要求。
從下面的照片來看,製造商可能也需要調整他們的充電器設計。
https://i.imgur.com/jUAZrH0.jpg
USB-C 規範並不是唯一涵蓋USB 端口和電纜工作方式的規範。今天主流的USB 3.2
和全新的USB 4 規定了數據如何通過電纜發送,而USB Power Delivery 規定了設備如何
與充電器和其他設備進行協商。
USB 還沒有設法取代的一個端口是英特爾的Thunderbolt,不過有了USB 4
其通過實際嵌入Thunderbolt 技術達到了Thunderbolt 的40Gbps 速度。
來源 https://www.ithome.com/0/553/613.htm
XF編譯 https://www.xfastest.com/thread-250822-1-1.html
電腦幫手機快充還有筆電的時代來了
--
Tags:
3C
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