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Home > News > Company news > What is the principle of fast charging technology

What is the principle of fast charging technology

Time:2020-07-22

AC220V市电经变压器T1降压,经baiD1-D4全波整流后,供给充电电路du工作zhi。当输出端按正确极性接入设定的被充电瓶dao后,若整流输出脉动电压的每个半波峰值超过电瓶的输出电压,则可控硅SCR经Q的集电极电流触发导通,电流经可控硅给电瓶充电。


脉动电压接近电瓶电压时,可控硅关断,停止充电。调节R4,可调节晶体管Q的导通电压,一般可将R4由大到小调整到Q导通能触发可控硅(导通)即可。图中发光管D5用作电源指示,而D6用作充电指示。

扩展资料:


1、基本概况


解决续航的方法有两种,一是直接使用大容量电池,二是使用快速充电技术。


2、快充三要素


手机上要实现快充充电功能需要满足三要素,三者缺一不可。充电器、电池、chargeIC。充电器需要满足足够的输出电流以及输出电压,因为充电器的走线有很大的寄生电阻,如果要实现较大的充电电流,充电器的带载输出电压需要较高。


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