2012年10月16日 · 假设三极管的Vbb为零，此时三极管be结的电压为零，三极管将处于截止状态，其c-e两极之间的电阻极大（对于硅三极管，此值可达上百MΩ），而在线性放大器中，三极管的集电极电阻Rc取值一般都在数十KΩ以下（微功耗放大器中的Rc阻值可能会取数百KΩ的），此时 ...

2022年4月13日 · Double letters (cc) refer to power supply voltages. For example, Vee refers to the "emitter" voltage. In CMOS logic, Vss refers to the "source" voltage, and Vdd is the "drain" voltage. Single letters refer to the voltage relative to ground; for example, Vc is the "collector" voltage relative to ground.

2010年4月22日 · Vcc = Collector supply voltage, Vee = Emitter supply, Vbb= Base supply voltage, Vdd = Drain supply, Vss = source supply. Whenever the supply to a Transistor (or TTL IC circuit) is connected between the collector and ground it is a standard to notify it as Vcc.

2021年1月23日 · In order to create the DC voltages, the furthest voltage, beyond these resistors or other components if present, was often referred to as VCC, VEE, and VBB. In practice VCC and VEE then refer to the plus and minus supply lines respectively in common NPN circuits. Note that VCC would be negative and VEE would be positive in equivalent PNP circuits.

Virtual Breadboard (VBB) is a software platform for emulating electronics systems, particularly focused on microcontroller circuits and Arduino applications. It's used primarily for designing, testing, and learning about electronic circuits without the need for physical components.

V BB is the base voltage of a bipolar junction transistor, in other words, the voltage that falls across the base of the transistor. V BB is an important value of a transistor because in order to find the quiescient current of the transistor, I EQ, V BB must be known. If you want to know how to calculate V BB, click on .

2004年9月21日 · Vcc is the collector supply; Vbb is the base supply; Vee is the emitter supply. You usually only see Vcc as Vbb is usually derived from Vcc via voltage divider bias and Vee from a ground connection, although plenty of circuits do use a negative Vee supply. A single-letter subscript indicates a voltage measurement with respect to (WRT) ground.

2024年9月11日 · Virtual Breadboard (VBB) is an electronics simulation platform that replicates the functions of a physical breadboard, allowing you to design, test, and visualize circuits...

1、在电压单位中，nV 是“纳伏”，V 是“伏”； mV 是“毫伏”， μV 是“微伏”。 2、电压在 国际单位制 SI里的 基本单位 为“ 伏特 ”（“V”, 为Volt的缩写），简称“伏”。

2024年7月26日 · 安装Virtual Breadboard前需要先装个vjredist才容易装。软件介绍：Virtual breadboard是一款专门的Arduino仿真软件，简称VBB，中文名为“虚拟面包板”。这款软件主要通过单片机实...