V2EX voltage source

Voltage Source

释义 Definition

电压源:能在其两端提供(理想情况下)恒定电压的电源或电路元件,不随负载电流变化而改变电压;现实中的电压源通常有内阻,负载变大时端电压会略有下降。(在电路分析中常与“理想电压源/实际电压源”对照使用。)

发音 Pronunciation (IPA)

/voltd srs/

例句 Examples

A battery is a simple voltage source.
电池是一种简单的电压源。

In circuit analysis, an ideal voltage source maintains the same voltage regardless of the current drawn by the load.
在电路分析中,理想电压源无论负载取走多大电流,都能保持相同的电压。

词源 Etymology

voltage 来自 volt(伏特),以意大利科学家 Alessandro Volta(伏打)的名字命名,用来表示电势差;后缀 -age 常用于构成表示“状态/量”的名词。source 源自拉丁语 surgere(“涌出、升起”)相关词,表示“来源、源头”。合起来 voltage source 就是“提供电压的来源/元件”。

相关词 Related Words

文学与著作 Literary Works

  • The Art of Electronics(Horowitz & Hill)在电源与模拟电路部分频繁讨论理想/实际电压源模型。
  • Microelectronic Circuits(Sedra / Smith)用于建立小信号模型与电路等效分析中的电压源概念。
  • Electric Circuits(Nilsson & Riedel)基础电路分析章节中系统讲解电压源、内阻与等效变换。
  • Introduction to Electric Circuits(Dorf & Svoboda)用电压源/电流源作为电路建模与定理(如戴维南/诺顿)的核心元素。
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