我给电池充电,通过霍尔传感器采样充电电流值,形成闭环控制,使得恒流充电,然后,充电电流可以从1A变化到2A,步进值0.1A,
霍尔传感器的特性:电流变化1A,电压变化0.185v,
我用iir滤波,但是采样过来的电压值,波动为0.06v,没法控制啊,
不知道,改用什么算法来滤波?我充电电路,开关频率50k
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