V2EX current-source

Current-Source

释义 Definition

(电子学)电流源:一种两端口电路/元件,理想情况下能在一定范围内向负载提供恒定电流,不随负载电压变化而改变(实际电流源受“顺从电压/合规电压”等限制)。

发音 Pronunciation (IPA)

/krnt srs/

例句 Examples

A current source provides a steady current.
电流源提供稳定的电流。

In the amplifier design, a current source is used to bias the transistor so the operating point stays stable despite voltage fluctuations.
在放大器设计中,电流源用于给晶体管提供偏置,使工作点在电压波动时仍能保持稳定。

词源 Etymology

current 来自拉丁语 currere(“奔跑、流动”),引申为“电流”;source 来自古法语 sourse/sourdre(“涌出、源头”)。合起来 current source 字面义为“电流的来源”,在电路语境中特指“能输出(近似)恒定电流的源”。

相关词 Related Words

文学与著作 Literary Works

  • The Art of Electronics(Horowitz & Hill)
  • Microelectronic Circuits(Sedra & Smith)
  • Introduction to Electric Circuits(Dorf & Svoboda)
  • The Feynman Lectures on Physics, Vol. II(Richard P. Feynman 等,涉及电路与电流模型时常用该术语)
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