Explain the transistor element
In this article, we will talk about the types of transistors, how they work, what they are useful for, and their conditions Transistor definition A transistor is a family of semiconductors consisting of three base terminals. The complex. emitter. It is considered one of the most important electronic compounds in electrical circuits, which revolutionized the world of electronics.
Transistor types
Transistors are divided into two types, NPN and PNP, and each one differs in its structure PNP type This type contains two P-positive crystals, and an N-negative one between them The method of work The current passes from the collector to the emitter from c to e when a negative charge (a voltage of more than 0.7v) is applied to base B according to the rule IB=IC×Bita Bita It is the act of takbir, which we will get to know more clearly later on Transistor symbol PNP Type NPN This type contains two N-negative crystals, and one P-positive one between them.
The method of work
The current passes from the collector to the emitter from c to e when a negative charge (a voltage of more than 0.7v) is applied to base B according to the rule IB=IC×Bita Bita It is the act of takbir, which we will get to know more clearly later on Transistor symbol PNP Type NPN This type contains two N-negative crystals, and one P-positive one between them The method of work Current flows from the collector to the emitter when a voltage of more than 0.7 v is applied to base B by a positive charge According to the rule IB=IC×Bita
NPN transistor symbol
Transistor Symbol
What is Beta
It is the amount of amplification of the transistor itself, and it differs from one transistor to another, and it is written on the component data page .
transistor terminals
Base :
It is the middle part between the compiler And the radioactive.
Collector:
This part is concerned with passing charges to the radiator and connected in reverse.
Emitter:
It is the one that completes the electrical circuit by passing the charges to the negative and forward.
transistor characteristics
And because we will get to know the three areas of operation of the transistor
The first region:
It is the cut-off region in which current does not pass from the collector to the radiator.
The second region:
is the amplification region, the effective region, or the linear operating region of the transistor.
The third region:
is the saturation region, which passes the largest amount of current through the transistor.
Transistor connection methods
The collector common:
The input signal is connected between the base and the collector and the output signal is connected between the emitter and the collector
common base :
The input signal is connected between the radiator and the base. The output signal is connected between the collector and the base
common emitter:
The input signal is connected between the base and the emitter and the output signal is connected between the collector and the base.
a summary :
The transistor has countless applications, and without this compound, computers, telephones, and other electrical devices would not have existed. It is indispensable in our daily life.