MOSFET Applications and Advantages Explained


The main applications of MOSFET are, Switching and amplifying of the electronic signal. MOSFET stands for Metal Oxide Semiconductor Field Effect Transistor.  In this article, you will find a lot of MOSFET Applications. You also find the advantages of MOSFET.


MOSFET Applications


(1) MOSFETs are used in high-frequency power amplifier because MOSFET has a very fast switching property.

(2) MOSFETs are used to make Integrated Circuits(IC). As the MOSFETs are having high switching property and high efficiency that is why they are used in digital ICs. Digital ICs such as Microcontroller, Microprocessor, Memory ICs are made of MOSFETs. The main function of MOSFET in all digital ICs are switching.




(3) MOSFET can handle a large amount of current than other transistors such as BJT that is why it is used for speed control of Motor.

(4) Actually, the main function of MOSFET is switching which is used for all applications. So MOSFETs are also used as an electronic switch in electronic circuits.

(5) MOSFETs are used in SMPS(Switch Mode Power Supply) Circuits.

(6) MOSFETs are used in Voltage regulator circuits.

(7) There is huge applications of MOSFET on the computer, laptops, etc. From the controlling  ICs to Memory ICs everywhere MOSFETs are used. If you observe the motherboard of a computer then you will see there are many MOSFETs are placed for different purposes.

(8)  MOSFETs are used in  CMOS logic circuits. CMOS means Complementary metal oxide semiconductor.  both p-channel and n-channel MOSFETs are used to make the CMOS logic circuit. Generally, CMOS logic circuits are used to reduce power consumption and heat producing.

(9) MOSFETs are used in electronic chopper circuits. In high power chopper circuits, SCRs are used but in low and medium power chopper circuits, MOSFETs are used.

(10) In the H-Bridge circuit, MOSFETs are used.

(11) In Inverter circuits, buck converter circuits, boost converter circuits MOSFETs are used.



Read Also: Main Difference Between MOSFET and BJT



Advantages of MOSFET


1. MOSFET has very fast switching property than other transistors such as BJT.

2. MOSFET can handle a large amount of current but less than SCR and IGBT.

3. MOSFET can withstand more heat.




4. MOSFET has a very high efficient switching property because there is a very low voltage drop occurs in MOSFET.

5. MOSFET has a very high input impedance which also increases efficiency.

6.  Another important advantage of MOSFET is, it is a voltage controlled device which helps to reduce loss and increase efficiency.

7. MOSFET has very less chance of thermal runaway as it tolerates more heat.

8. As the MOSFET is a unipolar device, so it is noiseless.

9. MOSFET creates very low power loss than other transistors.


Some Applications of MOSFET are explained


MOSFET as a Switch


MOSFET as a Switch


As you see in the above figure an n-channel MOSFET is used as a switch. When we give a voltage to the gate to source of the MOSFET, it will turn ON and conduct current. When the voltage is removed, the MOSFET will be turn OFF stop conducting current.


CMOS Circuit Using MOSFET


CMOS Circuit Using MOSFET



Simple Amplifier Circuit using MOSFET


amplifier circuit usinf MOSFET

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