V2EX isolated supply

Isolated Supply

Definition / 释义

隔离电源:一种与其他电路在电气上“隔离”的供电方式,通常通过变压器或隔离型 DC-DC 转换器实现,以提高安全性、减少噪声干扰并避免地环路(ground loop)。该短语多用于电子、电力与工业控制语境。

Pronunciation / 发音

/asletd spla/

Examples / 例句

This device needs an isolated supply.
这个设备需要隔离电源。

To reduce noise and prevent ground loops, the sensor interface uses an isolated supply derived from a DC-DC converter.
为降低噪声并防止地环路,传感器接口使用由 DC-DC 转换器提供的隔离电源。

Etymology / 词源

isolated 源自拉丁语词根 insula(“岛”)相关词形,含“像岛一样分离、隔开”的概念,后来引申为“与外界隔绝/电气隔离”。supply 来自古法语 supleer/souplier 等词形的发展,核心含义为“提供、补给”。合在一起在现代工程语境中固定指“隔离的供电”。

Related Words / 相关词

Literary Works / 文学作品

该短语属于工程技术用语,在传统文学作品中整体出现的频率较低;但其中的单词在文学中常见,例如:

  • Mary Shelley《Frankenstein》(出现 isolated 的常见语境:孤立、与世隔绝)
  • Daniel Defoe《Robinson Crusoe》(常见主题语境:isolated 的处境)
  • Herman Melville《Moby-Dick》(航海叙事中常见 supply/supplies:补给、供给)
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