V2EX current limit

Current Limit

释义 Definition(中文)

current limit电流限制/限流值。指电路、电源或设备为保护自身与负载而设定的最大允许输出电流;一旦电流达到该上限,系统会通过降压、恒流控制或关断等方式防止电流继续增大。
(在非技术语境中也可泛指“当前的限制/现有限度”,但最常见用法来自电子与电源领域。)

发音 Pronunciation(IPA)

/krnt lmt/

词源 Etymology(中文)

current 来自拉丁语 currere(“奔跑、流动”),在物理学中引申为“电流的流动”;limit 源自拉丁语 limes(“边界、界限”)。合起来 current limit 字面义为“电流的界限”,在工程语境中固定指“电流上限/限流”。

例句 Examples

Set the current limit to 1 amp before powering the circuit.
在给电路上电之前,把限流值设为 1 安培。

When the motor stalled, the driver hit the current limit and the output voltage dropped to protect the system.
电机堵转时,驱动器触发了限流保护,输出电压下降以保护系统。

相关词 Related Words

文学与作品 Literary & Works(中文)

该词组更常见于工程与科普技术写作而非小说诗歌,常出现在讨论电源、驱动器与保护电路的经典技术书籍中,例如:

  • The Art of Electronics(Horowitz & Hill)
  • Practical Electronics for Inventors(Paul Scherz 等)
  • Switching Power Supply Design(与开关电源设计相关的经典教材/专著中常见该术语)
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