BJT、JFET、MOS管，最基础的3种三极管。在原理上，他们的共性是什 …
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。 做数据拟合的时候，3个变 …
BJT三极管，原理实质上真的是电流控制器件吗？总感觉其实是电压控 …
Remark 1 ：三极管放大电流的本质是什么？ 由上述放大过程，我们不难看出BJT是电流控制电流源。 但本质上，BJT仍是电压控制电流源，我们是通过Vbe的微变，来控制Ib电流的指数响应，进而使Ic实 …
现在大部分电路都使用 MOSFET，为什么还要学 BJT？
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，很容易做到几个欧姆 …
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 Base, …
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的多子可以很快的越 …
How does a diode-connected BJT work? | All About Circuits
Jun 21, 2018 · A BJT is best thought of, in most circumstances, as a voltage-controlled device in the active region. The collector current is controlled by the base-emitter voltage.
Base to Ground resistor in BJT application - All About Circuits
Aug 19, 2010 · Hi, I'd like to ask a couple of questions please regarding the below circuit. 1. What is the role of Rbe? What is it needed for? 2. Is Rbe connected to Ground (on its bottom side) because the …
BJT transistor storage time - All About Circuits
Jun 26, 2015 · What does "storage time" in a bjt transistor mean? For example, in the 2N3906 datasheet it says: I understand delay, rise and fall times... but is storage time the "delay time" that it takes for …
LTspice avalanche bjt models - All About Circuits
Jun 6, 2023 · Hi all, I'm writing since I need to simulate on Spice the breakdown effect of avalanche BJT transistors. Now, the Gummel-poon model does not describe this phenomenon, so I came across …
BJT Spice model - All About Circuits
Feb 27, 2021 · Hi I am trying to find a good but simple tutorial about how to alter the parameters of the NPN/PNP Gummel and Poon model in LTSpice to be able to create any transistor you wish. At the …