V2EX reverse-biased

Reverse-biased

Definition / 释义

(电子学)反向偏置的:指二极管、晶体管结等半导体结处于反向电压作用下的状态,通常使耗尽层加宽,理想情况下几乎不导通(仅有很小的漏电流)。也可写作 reverse biased

Pronunciation / 发音

/rvrs bast/

Examples / 例句

The diode is reverse-biased.
二极管处于反向偏置状态。

When reverse-biased, the pn junction’s depletion region widens, so only a tiny leakage current flows.
当处于反向偏置时,PN 结的耗尽层会变宽,因此只会有极小的漏电流通过。

Etymology / 词源

reverse- 意为“反向、相反”;biased 来自 bias(“偏置、偏压、倾向”),在电子学里指“施加某种方向的电压/电流以设定工作状态”。bias 一词源自古法语 biais(“斜的、倾斜”),引申为“偏向”,再发展出技术语义“偏置”。

Related Words / 相关词

Literary Works / 文学作品

  • The Art of Electronics(Horowitz & Hill)在二极管与半导体器件章节中常出现“reverse-biased/ reverse bias”表述。
  • Microelectronic Circuits(Sedra & Smith)用于解释 PN 结在反向偏置下的特性与电流机制。
  • Semiconductor Device Fundamentals(Robert F. Pierret)讨论耗尽层、漏电与反向击穿等概念时频繁使用。
  • Physics of Semiconductor Devices(Sze & Ng)在半导体器件物理的标准叙述中使用“reverse-biased”描述结的工作区。
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