V2EX input current

Input Current

Definition / 释义

输入电流:电路或器件在输入端吸收或流入的电流。常用于运算放大器、比较器、传感器接口等场景(如“输入偏置电流”)。在不同语境下也可指某端口作为输入时的电流消耗或需求。

Pronunciation / 发音

/npt krnt/

Examples / 例句

The input current is only a few microamps.
输入电流只有几微安。

Because the amplifier’s input current flows through the source resistance, it can create a small voltage error that affects the measurement accuracy.
由于放大器的输入电流会流过信号源电阻,它可能产生一个小的电压误差,从而影响测量精度。

Etymology / 词源

input(输入)+ current(电流)构成的技术复合短语:用于描述“在输入端口出现的电流”。在模拟电路语境中常进一步细分为 input bias current(输入偏置电流) 等更具体概念。

Related Words / 相关词

Literary Works / 文学与作品例证

  • The Art of Electronics(Horowitz & Hill,《电子学艺术》):在运放与测量电路章节中频繁讨论输入电流及其误差影响。
  • Op Amps for Everyone(Texas Instruments):在运算放大器基础与应用部分系统讲解输入偏置电流/输入电流对电路设计的意义。
  • Analog Integrated Circuit Design(常见教材,如Gray等作者相关教材):在模拟集成电路输入级分析中使用“input current”等术语。
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