V2EX bjt

BJT

定义 Definition

BJTbipolar junction transistor 的缩写,中文常译为双极结型晶体管。它是一种常见的半导体三端器件(发射极、基极、集电极),通过小的基极电流来控制较大的集电极电流,常用于放大与开关电路。(除这一电子学含义外,在不同语境中也可能代表其他缩写。)

发音 Pronunciation (IPA)

/bi de ti/

例句 Examples

A BJT can be used as a simple switch to turn an LED on and off.
BJT 可以作为简单的开关来控制 LED 的亮灭。

In the amplifier stage, the designer chose a BJT because it provides stable gain when properly biased.
在放大器级中,设计者选择了 BJT,因为在合适的偏置条件下它能提供稳定的增益。

词源 Etymology

BJT 来自短语 bipolar junction transistor 的首字母缩写:

  • bipolar(双极):指导电涉及两种载流子(电子与空穴);
  • junction(结):指半导体中形成的 PN 结;
  • transistor(晶体管):由 transfer(转移)与 resistor(电阻)组合而成的词,早期用来描述“可控制的电阻/电流转移”器件。

相关词 Related Words

文学与著作 Literary & Notable Works

  • The Art of Electronics(Horowitz & Hill)多处以 BJT 讨论模拟放大与偏置设计。
  • Microelectronic Circuits(Sedra/Smith)在晶体管模型与小信号分析章节频繁出现 BJT
  • The Elements of Computing Systems(Nisan & Schocken)在硬件基础与逻辑实现的相关讨论中涉及晶体管概念(常与 BJT/MOSFET 并列对照)。
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