V2EX zener breakdown

Zener Breakdown

释义 Definition

齐纳击穿:一种发生在半导体 PN 结强反向偏置下的击穿机制。当反向电场非常强时,电子可通过量子隧穿从价带跃迁到导带,使反向电流在较低击穿电压下突然增大(常见于低击穿电压的二极管)。
(注:另一种常见击穿机制是 雪崩击穿 avalanche breakdown,通常出现在较高击穿电压范围。)

发音 Pronunciation (IPA)

/zinr brekdan/

例句 Examples

Zener breakdown occurs when the reverse electric field is strong enough to cause tunneling.
齐纳击穿发生在反向电场强到足以引发隧穿效应时。

In a voltage regulator, a Zener diode is operated in Zener breakdown to maintain a nearly constant output voltage despite changes in load.
在稳压电路中,齐纳二极管通常工作在齐纳击穿区,以便在负载变化时仍保持输出电压近似恒定。

词源 Etymology

“Zener”来自美国物理学家 Clarence Zener(克拉伦斯齐纳) 的姓氏,他对固体中电学与击穿相关现象的研究推动了这一概念的命名;“breakdown”意为“击穿/崩溃”,在电子学中指材料或结在强电场下失去正常阻断能力、导通电急剧增加的现象。

相关词 Related Words

文学与著作 Literary Works

  • The Art of Electronics(Horowitz & Hill)
  • Microelectronic Circuits(Sedra & Smith)
  • Solid State Electronic Devices(Streetman & Banerjee)
  • Electronic Devices and Circuit Theory(Boylestad & Nashelsky)
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