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第七讲 晶体三极管(上) 晶体三极管又叫半导体三极管,通常简称为晶体管或三极管。三极管大都是具有3个外部电极(引出脚)的半导体器件。少数三极管有4根引脚,但其中1根引脚为接地等用,与“三极”的功能无关。三极管的基本特性是对电信号进行放大和开关,其在电子电路中的应用十分广泛,是电子设备中的核心器件之一。在收音机、电视机、扩音机、录像机及计算机等许多电子电器整机中均可见到这种器件。
Chapter VII Transistor (on) Transistor Transistor, also known as semiconductor, usually referred to as the transistor or transistor. Transistors are mostly semiconductor devices with three external electrodes (pins). A few triodes have 4 pins, but one of them is used for grounding etc., which has nothing to do with the function of “3-pole”. The basic characteristics of the transistor is to amplify and switch the electrical signal, which is widely used in electronic circuits, is one of the core devices in electronic equipment. This kind of device can be seen in many electronic appliances such as radios, televisions, amplifiers, video recorders and computers.