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.
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
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
Simple Amplifier Circuit using MOSFET
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MOSFET Applications and Advantages Explained
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