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如何用一个三极管输出高低电平
更新时间: 2020-09-16 00:00:00  

基极输入高电平,三极管导通,集电极接地,输出是低电平;基极输入低电平,三极管关断,集电极电压为电源电压,输出是高电平;三极管,全称应为半导体三极管,也称双极型晶体管、晶体三极管,是一种电流控制电流的半导体器件;作用是把微弱信号放大成幅度值较大的电信号, 也用作无触点开关。

关键词: 何用 一个 三极管 输出 高低 电平

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