1.BQ24298给手持设备充电，可以用适配器充电，也可以用电脑主机读取手持机里面的信息，那怎么自动判别是适配器还是电脑USB主机接口.手机里面充电IC是怎么处理的，有参考原理图吗?
2.如果用47K的热敏电阻，RT1和RT2应该取值多少？麻烦给一个准确的值而不是公式
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