Why MOSFET acts as a switch

Thread Starter

Avijit Palit

Joined Jul 19, 2017
81
I am very new in electronics.
I worried about that if there is actual switch then why MOSFET acts as a switch in curcuits.
Forgive me for stupid question.
 

MaxHeadRoom

Joined Jul 18, 2013
28,619
In cases where electronic logic circuit switching takes place, then it is often more efficient to do this with a semiconductor device, rather than a physical contact of some kind..
The final application and nature of design decides it.
Max.
 

dl324

Joined Mar 30, 2015
16,846
I worried about that if there is actual switch then why MOSFET acts as a switch in curcuits.
Semiconductor devices can switch faster than mechanical switches, don't have contacts that can bounce, and don't wear out mechanically.

MOSFETs can be used as more than switches.
 
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