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无线充电芯片BQ51003输出电压不稳定

Other Parts Discussed in Thread: BQ51003

最近用BQ51003做了一个无线充电接收端,测试时发现VOUT输出是一个周期信号,周期为10s,5V(1s)+4.1V(9s)。

测试RECT管脚的电压,一直在4.43V~6.35V之间跳。

找不到分析问题的切入点,还请高手指点指点,在这里先谢过了。

电路原理图如下所示: