13问答网 > 关于三极管s8050接单片机引脚的电流放大

关于三极管s8050接单片机引脚的电流放大

2025-03-15 21:43:37
推荐回答（1个）
回答1：

1.8050放大倍：用万用表的HFE档位，把三极管对应插进去就看到放大倍数了
2.P0~P2需要加上拉电阻吗？
一般是要加的10K就可以。
3.查看你使用的单片机的引脚电流驱动能力如：5mA.那么与三极管接时需要串连得基极电阻的阻值大小必须小于5mA，也就是说电阻最小1K
,建议取5.6K

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