Applications of Transistor Configuration
Applications of different configurations of transistors are given below:
Common-Base Configuration
Applications of common-base configuration are given below:
- It is commonly used in low-noise amplifiers.
- This type of configuration also finds their application in photodetectors to amplify the weak received signals.
- It is also used in frequency converters, i.e., it converts signals of one frequency to another.
Common-Emitter Configuration
Applications of common-base configuration are given below:
- These configurations are useful in voltage amplifiers.
- It also helps in modulation of received input signal.
- It is also useful in radio-frequency amplifiers.
Common-Collector Configuration
Applications of common-base configuration are given below:
- It is commonly used in voltage regulation.
- In RF applications it is used to match the impedance between different stages of a circuit.
- Common-collector configuration also finds their application in current buffers.
BJT Configurations
A transistor is also called as bipolar junction transistor or simply BJT. It is called as bipolar as only two types of charge carriers, i.e. majority charge carriers and minority charge carriers are required to perform the operations on transistor. BJT is a current-controlled device as the output voltage, current or power is controlled by the input current in the transistor. As we know, BJT is a three-terminal device , so the three configurations- we will study in this article. The three main configurations are – common emitter , common base and common collector , which has its unique characteristics and applications respectively.
Table of Content
- What is BJT?
- Configurations
- Operating regions of transistor
- Advantages
- Disadvantages
- Applications
- Comparison between CB, CE and CC configurations