V2EX fet

FET

Definition / 定义

FETfield-effect transistor 的缩写,意为场效应晶体管:一种用电场来控制电流通断与大小的晶体管,常用于放大、开关、信号处理等电路中。(在不同领域里也可能有其他含义,但电子学中最常见的是这一义项。)

Pronunciation / 发音

/f i ti/

Examples / 例句

The circuit uses a FET.
这个电路使用了一个场效应晶体管(FET)。

By replacing the bipolar transistor with a FET, the design reduced noise and improved input impedance.
把双极型晶体管换成 FET 后,该设计降低了噪声,并提高了输入阻抗。

Etymology / 词源

FET 是首字母缩略词,来自 field-effect transistor(field “电场/场” + effect “效应” + transistor “晶体管”)。该术语在 20 世纪中期随着半导体器件的发展而普及,用来区分以“电场控制导电通道”的晶体管类型。

Related Words / 相关词

Literary Works / 文学与著作示例

  • The Art of Electronics(Horowitz & Hill)大量讨论 FET/MOSFET 在模拟与数字电路中的应用
  • Microelectronic Circuits(Sedra & Smith)在器件与电路章节中系统讲解 FET 模型与放大电路
  • CMOS VLSI Design(Weste & Harris)以 MOSFET(FET 的重要类型)为核心讲解集成电路设计
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