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无线充电,线圈距离不能太近的原因

Other Parts Discussed in Thread: BQ51013B, BQ500511, BQ50002

Hi

TX 我用BQ500511+BQ50002,RX用BQ51013B,发现两个线圈距离可以工作在5~9mm,大于9mm不输出可以理解,为什么小于5mm时输出电压会变得不稳呢(4~5V跳动),按道理讲不是越近越好吗?

谢谢!