- published: 18 Jul 2014
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The metal–oxide–semiconductor field-effect transistor (MOSFET, MOS-FET, or MOS FET) is a type of transistor used for amplifying or switching electronic signals.
Although the MOSFET is a four-terminal device with source (S), gate (G), drain (D), and body (B) terminals, the body (or substrate) of the MOSFET is often connected to the source terminal, making it a three-terminal device like other field-effect transistors. Because these two terminals are normally connected to each other (short-circuited) internally, only three terminals appear in electrical diagrams. The MOSFET is by far the most common transistor in both digital and analog circuits, though the bipolar junction transistor was at one time much more common.
The main advantage of a MOSFET over a regular transistor is that it requires very little current to turn on (less than 1mA), while delivering a much higher current to a load (10 to 50 times or more).
In enhancement mode MOSFETs, a voltage drop across the oxide induces a conducting channel between the source and drain contacts via the field effect. The term "enhancement mode" refers to the increase of conductivity with increase in oxide field that adds carriers to the channel, also referred to as the inversion layer. The channel can contain electrons (called an nMOSFET or nMOS), or holes (called a pMOSFET or pMOS), opposite in type to the substrate, so nMOS is made with a p-type substrate, and pMOS with an n-type substrate (see article on semiconductor devices). In the less common depletion mode MOSFET, detailed later on, the channel consists of carriers in a surface impurity layer of opposite type to the substrate, and conductivity is decreased by application of a field that depletes carriers from this surface layer.
MOSFETs are the most common transistors used today. They are switches that can be used an Arduino, BeagleBone, or Raspberry Pi. This is part 2 of a 2 part series, which covers MOSFETs. (Part 1 Covered BJTs). When it comes down to it, MOSFETs are pretty complicated devices. This video will cover the basics of what you need to use them in your circuit, including calculating if you need a heat sink or not. Learn what they are and how to use them. Part 1 (BJTs): https://www.youtube.com/watch?v=sRVvUkK0U80 Show Notes: http://www.addohms.com/ep11 Follow us on twitter: @addohms
The MOSFET. Developed under Teaching Innovation Project 10-170 of Universidad de Granada (Spain) Creative Commons By-NonCommercial-NonDerivs. English version. Please watch the new video on pn junctions! http://www.youtube.com/watch?v=JBtEckh3L9Q
WORKING OF MOSFET -- WORKING PRINCIPLE OF MOSFET There are two types of MOSFET: Depletion Type MOSFET and Enhancement Type MOSFET Depletion Type MOSFET is divided into two subtypes N-Channel Depletion Type MOSFET and P-Channel Depletion Type MOSFET. Enhancement Type MOSFET is also divided into two subtypes N-Channel Enhancement Type MOSFET and P-Channel Enhancement Type MOSFET.
Electronic Basics BJT: https://youtu.be/WRm2oUw4owE Previous video: https://youtu.be/ttwsMwG_Gco Twitter: https://twitter.com/GreatScottLab Support me for more videos: https://www.patreon.com/GreatScott?ty=h My favorite N-channel MOSFET: http://rover.ebay.com/rover/1/711-53200-19255-0/1?icep_ff3=2&pub;=5575101368&toolid;=10001&campid;=5337582279&customid;=&icep;_item=261074291323&ipn;=psmain&icep;_vectorid=229466&kwid;=902099&mtid;=824&kw;=lg My favorite P-channel MOSFET: http://rover.ebay.com/rover/1/711-53200-19255-0/1?icep_ff3=2&pub;=5575101368&toolid;=10001&campid;=5337582279&customid;=&icep;_item=201415050673&ipn;=psmain&icep;_vectorid=229466&kwid;=902099&mtid;=824&kw;=lg More information about MOSFETs: http://www.st.com/content/ccc/resource/technical/document/application_note/68/cd/c6/ab/ef/17/41/06/C...
For More Video lectures from IIT Professors .......visit www.satishkashyap.com Video Lectures on Electron Devices by Prof. A.N. Chandorkar, IIT Bombay 1. History of electronics.flv 2. History of Electronics (contd..).flv 3. Introduction to Semiconductors 4. Introduction to Semiconductors contd... 5. Introduction to Semiconductors contd... 6. Introduction to Semiconductors contd... 7. Introduction to Semiconductors contd... 8. Introduction to Semiconductors contd... 9. Introduction to Semiconductors contd... 10. Diffusion 11. Excess Carriers 12. Excess Carriers contd... 13. System in Steady State 14. PN Junction 15. PN Junction Fabrication 16. PN Junction contd... 17. PN Junction contd... 18. VI charecteristics of PN Junction 19. PN Junction under Forward Bias 20. P...
How to use an N channel MOSFET (a type of transistor) to turn anything on and off! Also, remember to put a 100k resistor between gate and ground if you want your FET to stay off by default. IRFZ44 MOSFETs on Amazon: http://www.amazon.com/exec/obidos/ASIN/B00CFEVJ7M/afromods-20 Main tutorial webpage: http://www.afrotechmods.com
Eletrônica fácil apresenta: Aprenda mais sobre: O que são os Transistores de Efeito de Campo, o que são os MOSFET's. Como funcionam os MOSFETs, quais são suas aplicações dos MOSFETs, como utilizar os MOSFETs em circuitos eletrônicos, Quais são os terminais dos MOSFETs? O que é Gate, Dreno e Source? O QUE FAZER COM ESTES TERMINAIS? Diferença entre MOSFET CANAL N e CANAL P. Inscreva-se no Canal: https://www.youtube.com/eletronicafac... Facebook: https://www.facebook.com/eletronicafacil Comunidade no Facebook: https://www.facebook.com/groups/eletr... Twitter: https://twitter.com/_EletroFacil #eletronicafacil Porque aprender eletrônica é mais fácil do que parece. Acesse todos nossos cursos aqui! https://www.youtube.com/eletronicafacil
In this video you will learn: Depletion type MOSFET construction with diagram it's symbol. Insulated Gate Field Effect Transistor. Operation of Depletion type MOSFET. Transfer Characteristics, Drain Characteristics P-Channel Depletion Type MOSFET
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