高通Quick Charge 2.0手機週邊配件 - 手機討論

By Linda
at 2015-03-12T17:53
at 2015-03-12T17:53
Table of Contents
各位板友您們好:
不曉得各位對於Qualcomm Quick Charge 2.0的了解有到哪裡?
這邊我以自己所做的整理來跟各位分享,如果有不對的地方或是有要補充的,
還請您不吝指教,在這邊先謝謝各位的耐心。以下為正文開始:
高通(Qualcomm)的Quick Charge 2.0,以下簡稱QC 2.0,以已通過高通認證過的
適配器:http://ppt.cc/qdmD http://ppt.cc/V-y0
車充:http://ppt.cc/pKTs 移動電源:http://ppt.cc/rLFO
配合搭載高通驍龍800系列以上的手機才能支援此QC 2.0快充功能。
(Snapdrogan 800, 801, 803, 805, 810)是以D+/D-來調整充電器的輸出,
將原本標準的5V/1A提升電壓成9V/1.5A(理論值)來進行充電。
以下我以小米3作為舉例,請參照我的附圖來說明情況。
先以原廠所配的充電器(5V1A)來做實測:
http://ppt.cc/CCxb http://ppt.cc/CwfE http://ppt.cc/ZHjQ
再以QC 2.0認證過的產品(5V/2.1A)來做實測:
http://ppt.cc/ORsw http://ppt.cc/xKZV http://ppt.cc/ica3
相信各位有注意到,QC 2.0啟動後,功率確實提高了(P=I*V),電流值反而低於1A,
為的是什麼呢?主要是因為充電器跟手機之間還有一個重要參數:線材。
P=I平方乘以R,考慮到線損問題,還有溫度問題,快充不僅提高了電壓,也同時考量
到線損還有溫度的問題。另外,線材的AWG也會是變數之一,一般使用26或24AWG。
另外,這邊要提醒一點,由於QC 2.0需要用的線必須是4 Line的Data傳輸線,
不能用一般的2 Line 的充電線,(註:USB有V+/D+/D-/GND,QC2.0利用D+/D-)
這邊再附上市面上搭載高通晶片的手機 http://ppt.cc/itv1 當然這只是簡述,
目前很多大陸國內手機也是使用高通,不過都是中低端手機為主。普及度不高。
以上,如果還有想到什麼想補充的我再做編輯喔~謝謝,吃晚餐去。
--
不曉得各位對於Qualcomm Quick Charge 2.0的了解有到哪裡?
這邊我以自己所做的整理來跟各位分享,如果有不對的地方或是有要補充的,
還請您不吝指教,在這邊先謝謝各位的耐心。以下為正文開始:
高通(Qualcomm)的Quick Charge 2.0,以下簡稱QC 2.0,以已通過高通認證過的
適配器:http://ppt.cc/qdmD http://ppt.cc/V-y0
車充:http://ppt.cc/pKTs 移動電源:http://ppt.cc/rLFO
配合搭載高通驍龍800系列以上的手機才能支援此QC 2.0快充功能。
(Snapdrogan 800, 801, 803, 805, 810)是以D+/D-來調整充電器的輸出,
將原本標準的5V/1A提升電壓成9V/1.5A(理論值)來進行充電。
以下我以小米3作為舉例,請參照我的附圖來說明情況。
先以原廠所配的充電器(5V1A)來做實測:
http://ppt.cc/CCxb http://ppt.cc/CwfE http://ppt.cc/ZHjQ
再以QC 2.0認證過的產品(5V/2.1A)來做實測:
http://ppt.cc/ORsw http://ppt.cc/xKZV http://ppt.cc/ica3
相信各位有注意到,QC 2.0啟動後,功率確實提高了(P=I*V),電流值反而低於1A,
為的是什麼呢?主要是因為充電器跟手機之間還有一個重要參數:線材。
P=I平方乘以R,考慮到線損問題,還有溫度問題,快充不僅提高了電壓,也同時考量
到線損還有溫度的問題。另外,線材的AWG也會是變數之一,一般使用26或24AWG。
另外,這邊要提醒一點,由於QC 2.0需要用的線必須是4 Line的Data傳輸線,
不能用一般的2 Line 的充電線,(註:USB有V+/D+/D-/GND,QC2.0利用D+/D-)
這邊再附上市面上搭載高通晶片的手機 http://ppt.cc/itv1 當然這只是簡述,
目前很多大陸國內手機也是使用高通,不過都是中低端手機為主。普及度不高。
以上,如果還有想到什麼想補充的我再做編輯喔~謝謝,吃晚餐去。
--
Tags:
手機
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