快充双协议识别方案设计  

Design of double fast charge protocol identification circuit

作　　者：汪鑫 罗雪姣 沈琪 WANG Xin;LUO Xue-jiao;SHEN Qi(Electronic Information and Electromechanical Engineering,Wuhan Qingchuan University,Wuhan430204,China)

机构地区：[1]武汉晴川学院电子信息与机电工程学院

出　　处：《电子设计工程》2019年第12期39-42,46,共5页Electronic Design Engineering

基　　金：湖北省教育厅科学研究计划指导性项目(B2017412)

摘　　要：随着智能手机的普及,手机的续航成为了人们最为关注的问题。目前普遍使用的锂电池容量有限,在没有新材质电池诞生的情况下,快充成为一种新的解决方法。市场上主流的快充都只能支持单一快充协议,本设计在此基础上,设计一种支持多个快充协议的设计方案,能够兼容多种手机快充,智能选择对应的充电模式,实现对手机电池的快速充电。结果显示,该设计可以根据不同的快充协议可选择5V-2A、9V-2A、12V-1.5A三档,最后实现QC、MTK快充双协议的兼容。With the popularity of smart phones,the life of mobile phones has become the most concerned issue.At present,the lithium battery commonly used has a limited capacity,and in the absence of a new material battery,fast charging becomes a new solution.The mainstream fast charging in the market can only support a single fast charging protocol.Based on this design,the design is designed to support multiple fast charging protocols.It can be compatible with a variety of mobile phone fast charging and intelligently select the corresponding charging mode.Achieve fast charging of mobile phone batteries.The results show that the design can select 5V-2A,9V-2A,12V-1.5A third gear according to different fast charging protocols,and finally achieve compatibility with mainstream fast charging protocols such as QC,MTK.

关 键 词：快充 QC协议 MTK协议 协议识别 

分 类 号：TN710.9[电子电信—电路与系统]