调试bq24253充电电路,在有电池的情况下,比较正常;在没有电池的情况下,一块板子Vsys是3.22V,用示波器测试量基本是个平的信号。另一个板子Vsys如下图所示。都不是像手册上所写的64ms周期的,大于3.5V的波形。不知道什么原因导致
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