V2EX diode

Diode

释义 Definition

二极管:一种电子元件,主要特点是电流更容易沿一个方向通过而在反方向被阻止或大幅减小,常用于整流、稳压、保护、发光(LED)等电路中。(也可指更具体的类型,如发光二极管 LED、齐纳二极管等。)

发音 Pronunciation (IPA)

/daod/

例句 Examples

A diode lets current flow in only one direction.
二极管只允许电流沿一个方向流动。

To protect the circuit, the engineer added a diode that prevents reverse current when the power supply is connected incorrectly.
为了保护电路,工程师加装了一个二极管,在电源接反时阻止反向电流。

词源 Etymology

diode 由前缀 di-(“二、两个”)和后缀 -ode(与“电路路径/电极”相关,常见于早期电子器件命名)组合而来,字面含义可理解为“两端的电子器件”。该词在电子学发展早期用于区分具有不同电极数量的器件(如三极管 triode)。

相关词 Related Words

文学作品 Literary Works

  • Mary Shelley, Frankenstein(常见版本中不出现该词;作品写作时代早于“二极管”概念与术语的普及)
  • H. G. Wells, The Time Machine(通常不出现该词;同样早于现代电子术语体系)
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