嵌入式 - 什么是数字晶体管

What is a digital transistor?

数字晶体管是一种集成电阻器的双极晶体管。

A digital transistor is a bipolar transistor that integrates resistors.

• Concerning internal resistor R1 / 关于内部电阻 R1

R1 的作用是通过将输入电压转换为电流来稳定晶体管的工作。

如果将输入端（基极）直接连接到集成电路的输出端进行电压控制，双极运行往往会变得不稳定。在基极插入一个电阻可以稳定工作。请注意，输出电流将根据输入电压的变化呈指数变化，但与输入电流保持线性关系。

The role of R1 is to stabilize transistor operation by converting the input voltage to current.

Bipolar operation tends to become unstable if the input (Base) is connected directly to the output terminal of an IC for voltage control. Inserting a resistor at the Base stabilizes operation. Please note that the output current will vary exponentially based on changes to the input voltage, but will maintain a