Basic introduction to transistors - LS produces electricity

A transistor is a solid-state semiconductor device with a variety of functions such as detection, rectification, amplification, switching, voltage regulation, and signal modulation. A transistor is a variable current switch that can manipulate the output current based on the input voltage. Unlike general mechanical switches (such as relay and switch), transistors use telecommunication signals to control their own opening and closing, and the switching speed can be very fast, and the switching speed in the laboratory can reach more than 100GHz.

Basic introduction to transistors - LS produces electricity

Basic introduction to transistors - LS produces electricity

In 2016, a team at Lawrence Berkeley National Laboratory broke the limits of physics, reducing the existing sophisticated transistor process from 14nm to 1nm, completing a major breakthrough in computing technology. A transistor is a solid-state semiconductor device that can be used for detection, rectification, amplification, switching, voltage regulation, signal modulation, and many other functions. As a kind of variable switch, the transistor can be used as a current switch based on the input voltage, so the transistor can be used as a current switch, which is different from the general mechanical switch (such as Relay and switch) in that the transistor is controlled by using a telecommunication signal, and the switching speed can be very fast, and the switching speed in the laboratory can reach more than 100GHz.

Transistors are divided into two main categories: bipolar transistors (BJTs) and field-effect transistors (FETs). The transistor has three poles: The three poles of a bipolar transistor are composed of an Emitter, a Base and a Collector respectively of the N-type and the P-type; The three poles of a field-effect transistor are the source, gate, and drain. Because transistors have three polarities, there are also three ways to use them, namely emitter grounding (also known as co-emission expansion, CE configuration), base grounding (also known as co-base expansion, CB configuration) and collector grounding (also known as co-emission expansion, CC configuration, emitter follower). In a bipolar transistor, a small current from the emitter to the base will cause a large current to be generated between the emitter and the collector. In a field-effect transistor, a small voltage is applied to the gate to manipulate the current between the source and the drain. In analog circuits, transistors are used for amplifiers, audio amplifiers, RF amplifiers, and voltage regulators; In computer power supply, it is mainly used for switching power supply. Transistors are also used in digital circuits, and their primary function is to act as electronic switches. Digital circuitry consists of logic gates, random access memory (RAM), and microprocessors. There are many large ratings that should be paid attention to in the application of transistors, such as high voltage, high current, and high power. If the transistor is used in excess of the amount, the internal structure of the transistor will be damaged. Each type of transistor also has unique characteristics, such as DC amplification rate HFE and NF noise ratio, which can be found in the transistor specification sheet or data sheet. The common use of transistors in circuits should be attributed to the aspect of signal expansion, followed by impedance matching, signal conversion, etc., transistors are a very important component in circuits, and many delicate components are first made of transistors.

Basic introduction to transistors - LS produces electricity

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