电池电压在3.85左右(电池容量600mA),用BQ24040 给电池充电通过一条600mm线(正负线压降0.1V)连接到电池,充电电流设置500mA, 发现充电会出现振荡;
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电池电压在3.85左右(电池容量600mA),用BQ24040 给电池充电通过一条600mm线(正负线压降0.1V)连接到电池,充电电流设置500mA, 发现充电会出现振荡;
Hi, 早前测试过加电容,问题一样存在; 实际是充电电池电压上升,观察电池电压在3.96V+线阻抗压降0.12V,应是IC 检测要进入恒压区过程出问题振荡;用示波器观察电池电压,出现~3.8 到4.23V 振荡方波(频率!20HZ);