集电极开路(晶体管)输出负载可容纳高达100毫安的电流。

An open collector (transistor) output accommodates loads up to 100 mA.

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如果另外有个电压或电流源存在，用仅有减小电流作用的集电极开路开关代替s1。

If another voltage or current source is present, you could replace S1 with an open-collector switch that sinks current only.

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如果另外有个电压或电流源存在，用仅有减小电流作用的集电极开路开关代替s1。

If another voltage or current source is present, you could replace S1 with an open-collector switch that sinks current only.

youdao