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单词 Threshold voltage
释义

Threshold voltage

中文百科

阈值电压

计算机仿真展现的纳米线MOSFET中反型沟道的形成(电子密度的变化)。阈值电压在0.45V左右。
Depletion region of an nMOSFET biased below the threshold
Depletion region of an nMOSFET biased above the threshold with channel formed
Strom-Spannungs-Kennlinie einer Siziliumdiode mit einer Schwellenspannung UF von ca 0,7 V

阈值电压英语:Threshold voltage),又称阈电压开启电压,通常指的是在TTL或MOSFET的传输特性曲线(输出电压与输入电压关系图线)中,在转折区中点所对应的输入电压的值。

当器件由空乏向反转转变时,要经历一个Si表面电子浓度等于电洞浓度的状态。此时器件处于临界导通状态,器件的闸极电压定义为阈值电压,它是MOSFET的重要参数之一。

英语百科

Threshold voltage 阈值电压

Simulation result for formation of inversion channel (electron density) and attainment of threshold voltage (IV) in a nanowire MOSFET. Note that the threshold voltage for this device lies around 0.45 V.
Depletion region of an nMOSFET biased below the threshold
Depletion region of an nMOSFET biased above the threshold with channel formed
Strom-Spannungs-Kennlinie einer Siziliumdiode mit einer Schwellenspannung UF von ca 0,7 V

The threshold voltage, commonly abbreviated as Vth or VGS (th), of a field-effect transistor (FET) is the minimum gate-to-source voltage differential that is needed to create a conducting path between the source and drain terminals.

For an nMOS device at gate-to-source voltages above the threshold voltage ((VGS > Vth) but still below saturation (less than "fully on", (VGS  Vth) > VDS), the transistor is in its 'linear region', also known as ohmic mode, where it behaves like a voltage-controlled variable resistor.

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更新时间:2025/6/19 16:46:15