Transistor

What is a Transistor?

A transistor is a semiconductor that controls voltage or current flow in electronic signals and it amplifies and acts as a switch for them. Transistor consists of three layers each of which can carry a current. If the transistor is working as an amplifier then it transforms a small input current into a big output current....

Parts of a Transistor

As said earlier, transistor consists of three layers of semiconductor materials or terminals which helps to make a connection to any external circuit and all the layers do carry the current. Here voltage or current applied at any one pair of the terminals controls the current or voltage through the other pair of terminals....

Types of Transistors

A Transistor can be classified into various categories, however other types of transistors are there but we are going to discuss two main types as mentioned below:...

Other Types

The BJT and FET are the main types of transistor based on how the circuit can be used, other than these two there are more types of transistor such as...

Construction of Transistor

A transistor is an three layer semiconductor device which is sandwiched between two same types of semiconductor. The process of sandwiching is called fabrication of transistor....

How do Transistors Work?

As we know BJT consists of three layers or terminals which are Emitter, Base, and Collector. It is a device where two P-N junctions are there within a BJT....

Operation of NPN Transistor

The NPN transistor is made up of n-type materials hence the majority of charge carriers are electrons that carry negative charges. When the base-emitter is forward biased then the electrons will move from the n-type region to the p-type region and the minority charge carriers (holes) will move to the p-type region. If they combine and meet together they enable a current to flow across the junction. If the junction here is reverse biased then charge carriers move away from the junction. In this case depletion region will form between two areas and there will be no current....

Characteristics of Transistor

It represents the plot or structure which represents the relation between current and voltage of a transistor in a specific configuration. The characteristics of a Transistor are:...

Transistor Biasing

It is a process of applying a DC operating voltage condition to the transistor so that the AC input signal can be amplified correctly by the transistor. It is one of the most used semiconductor devices that is used for a wide range of applications. To obtain those functionality a transistor must be supplied with current or voltage. It can be accomplished by various biasing circuits and techniques....

Transistor Operating Conditions

When a small signal is applied between one pair of terminals in a transistor, a signal can be operated to control a much larger signal at another pair of terminals. In this part, the property of the transistor is gained due to signal strength in the process of switching and the output generated can be either voltage or current or electronic signal. If the input increases then the output also increases. In other words, it is simple to say that output is proportional to input. Due to this particular activity transistor can act as an amplifier....

Importance of Transistors

As we are aware, transistors are used for building simple electronic switches. They are considered as basic elements in integrated circuits. To build a microprocessor, various numbers of transistors were embedded into a single Integrated circuit. Transistor is mainly used for high-power applications and low frequency such as power supply adapters. In modern telecommunication systems, transistors act as complex switching circuits. Transistors are semiconductor devices that are used for modern electronic equipment to switch signals. It is considered a building block of modern electronic machinery which is manufactured from semiconductors. As we know transistors consist of three terminals which are used to control the voltage and current at the two terminals. Today more transistors are found in embedded C....

Advantages of Transistor

Here are some advantages of a transistor:...

Disadvantages of Transistor

Here are some disadvantages of a transistor:...

Applications of Transistor

Transistors are fundamental building blocks of modern electronics. They are essentially tiny, solid-state switches that can amplify or regulate a current or voltage. Here are some of their key applications:...

Conclusion

In this particular article we have seen in detail about the transistor, its types, working principle and its application. Transistors play a vital role in this digitalized world as it helps to improve the efficiency of operational electronic signals and make more compact electronic devices and so on....

Transistor – FAQs

What is the principle of a transistor?...