![]() ![]() The operating point is the point on the output characteristics that shows the Collector-Emitter voltage and the Collector current with no input signal. For the proper working of the circuit, it is necessary to bias the transistor using resistor networks. Transistors may be NPN, PNP, FET, JFET, etc which have different functions in electronic circuits. They are used as electronic switches, amplifiers, etc in circuits. Transistors are the most important semiconductor active devices essential for almost all circuits. ![]() The applications of FET’s are in a low noise amplifier, buffer amplifier, and an analog switch. There are many types of FET’s, MOSFET, JFET, etc. The channel of FET which is made of silicon. FET channel is formed by moving of positive and negative charge carriers. This transistor controls the positive and negative carriers concerning holes or electrons. One thing all of these transistors have in common is that they each have three leads. The simple diagrams of BJT and FET are shown in the figure below: Bipolar Junction Transistor(BJT) Field-Effect Transistors(FET)Īs you can see, transistors come in a variety of different sizes and shapes. For a field-effect transistor, it also has the three terminals, they are gate, source, and drain, and a voltage at the gate can control a current between source and drain. A small current is flowing between the base and the emitter the base terminal can control a larger current flow between the collector and the emitter terminals. There are two types of transistors is present they are bipolar junction transistors (BJT), field-effect transistors (FET). The basic idea behind a transistor is that it lets you control the flow of current through one channel by varying the intensity of a much smaller current that’s flowing through a second channel. Base: This is responsible for activating the transistor.
0 Comments
Leave a Reply. |
Details
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |