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bq51050B充电电流不稳定问题请教

Other Parts Discussed in Thread: BQ51050B, BQ51013A, BQ500212A, BQ51013B

我用BQ51013A+bq51050B,给锂电池充电,设置545mA充电电流,但串联电流表测得电流在520mA与545mA之间浮动,有时会跌到500mA,

1、请问这是正常现象吗?

2、用示波器测电池电压也会上下跳动(3.28V~3.18V),请问这算正常吗?

3、移动接收板,测得接收端线圈(谐振电容端)的波形变化有点严重,频率从160Khz跳到205Khz,这个频率正常吗?

非常谢谢各位能给出意见!