V2EX dc circuit

DC Circuit

Definition 定义

DC circuit 指“直流电路”:由直流电源(电压/电流方向随时间不变或近似不变)驱动的电路系统,常用于分析电阻、电容、电感在稳态或缓变条件下的电压、电流与功率关系。(也常与 AC circuit 交流电路相对。)

Pronunciation 发音(IPA)

/disi skt/

Examples 例句

A DC circuit can be powered by a battery.
直流电路可以由电池供电。

In a DC circuit, the capacitor eventually charges up and the current drops to nearly zero.
在直流电路中,电容最终会充满电,电流会下降到接近零。

Etymology 词源

DCdirect current(直流)的缩写,表示电流方向不随时间周期性改变;circuit 源自拉丁语 circuitus,意为“环行、回路”,在电学中引申为“电流流通的闭合回路”。合起来 DC circuit 就是“以直流为工作条件的电路/回路”。

Related Words 相关词汇

Notable Works 文献与作品示例

  • The Art of Electronics(Horowitz & Hill)多处讨论直流偏置、直流工作点与基本直流电路分析。
  • Fundamentals of Electric Circuits(Alexander & Sadiku)以直流电路作为电路分析入门核心内容之一。
  • Analysis of Electric Circuits(Hayt, Kemmerly & Durbin)系统讲解直流网络定理与稳态分析方法。
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