V2EX avalanche diode

Avalanche Diode

释义 Definition

雪崩二极管:一种专门设计或经过选用、能在反向偏置下进入雪崩击穿(avalanche breakdown)并仍能安全工作、用于稳压、过压保护或产生噪声/脉冲等用途的二极管。(注:在电子学里它与“齐纳二极管”用途相近,但机理与适用电压范围常不同;有些器件统称为“齐纳/雪崩二极管”。)

发音 Pronunciation (IPA)

/vlnt daod/

例句 Examples

The circuit uses an avalanche diode to protect the input from voltage spikes.
该电路使用雪崩二极管来保护输入端免受电压尖峰影响。

When reverse-biased beyond its breakdown voltage, an avalanche diode can clamp the voltage and dissipate the surge safely.
当反向偏置超过其击穿电压时,雪崩二极管可以钳位电压,并安全地耗散浪涌能量。

词源 Etymology

Avalanche 原义为“雪崩”,来自法语 avalanche,用于形容一种“突然成倍增长、连锁扩散”的现象;在半导体中指载流子在强电场下发生碰撞电离,导致电流迅速增大的“雪崩效应”。Diode 来自 “di-(二)+ -ode(电极/路)”,表示具有两个端子的电子器件。合起来,“avalanche diode”即“利用/承受雪崩击穿效应工作的二极管”。

相关词 Related Words

文学与著作中的用例 Literary Works

  • The Art of Electronics(Horowitz & Hill)中在二极管、稳压与保护电路相关章节常讨论雪崩/齐纳击穿与器件选择。
  • Microelectronic Circuits(Sedra & Smith)在二极管模型与击穿机理部分涉及雪崩击穿(与雪崩二极管应用相关)。
  • Semiconductor Device Fundamentals(Robert F. Pierret)在半导体物理与击穿机制章节系统讲解雪崩效应与相关器件。
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