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  1. BJT、JFET、MOS管,最基础的3种三极管。在原理上,他们的共性 …

    BJT的关键变量是Vbe、Vce、Ic,JFET与MOS管的关键变量都是Vgs、Vds、Id。 由这些具体可以概括出: 三极管需要处理的变量都是3个,即控制量、主通道电压、主通道电流。 做数据拟合 …

  2. BJT三极管,原理实质上真的是电流控制器件吗?总感觉其实是电 …

    都2022年了,「BJT三极管是电流控制器件」的观点,还在流行。 不仅掩盖了三极管有趣的灵魂,还遮蔽了半导体中磅礴的力量。

  3. 现在大部分电路都使用 MOS,为什么还要学 BJT? - 知乎

    BJT作为输出级时,只要将BJT接成射极跟随器(共集电极组态),单管就很容易做到100欧姆以下的输出电阻,如果是大电流功率输出级,由于电导调制效应的作用,发射结电阻极低,很容易 …

  4. BJT与MOSFET的开关速度谁更快?高频特性谁更好? - 知乎

    BJT的载流子(电子和空穴)在体内运动,迁移速度快,而MOSFET作为表面器件,载流子(多数载流子)在表面沟道中运动,迁移速度相对较慢。 "BJT的Base很窄,重掺杂的emiiter的多子 …

  5. LTSpice ( how to import a component ) | All About Circuits

    Apr 15, 2025 · Create Symbol is used for .subckt (sub-circuits). The .model construct is designed to be in the schematic or in a standard file like standard.bjt

  6. Adding transistor library to LTSpice | All About Circuits

    Jul 27, 2020 · Hi Sam, Find the standard.bjt folder in your LTSpice, I use Microsoft Explorer to display the files This is my Path to the folder, Yours should be the same. Use a text editor to …

  7. Collector Base Junction controlling reverse or forward bias

    May 28, 2012 · Im missing a concept regarding saturation, active mode of a npn transistor. for a bjt npn to be in saturation mode the collector base junction is forward biased and the base …

  8. Explanation Of Small Signal VS Large Signal - All About Circuits

    Jan 19, 2015 · Books often use the term "Small Signal" and "Large Signal" to describe the input to a transistor amplifier. I have done an online search of these terms and I still cannot find a clear …

  9. How do you turn on an NPN BJT Transistor? - All About Circuits

    Oct 8, 2016 · So.. here it goes. I'm going to try give my hypothesis, as to how these NPN BJT Transistors work. The Vebo (Emitter Base Voltage) is the positive voltage to be applied to the …

  10. 三极管的开关速度为何比MOS管慢? - 知乎

    Oct 16, 2020 · 三极管的开关速度为何比MOS管慢? 它们导通的原理不一样。MOSFET沟道没有 p-n结电荷存储效应. 值得一提的是 MOSFET 的 “体二极管”或者 “寄生二极管”是存在电荷存储效 …