In this operation region of a transistor the value of current at base is zero (IB=0) so the value of current at collector will also 0.Let's discuss these two regions of transistors with detailed. In this curve you can see that the portion at the below of curve has pink colour is denoted as Cut-off portion and blue colour portion is known as saturation portion of the transistor.In the given figure the current and voltage characteristics curve is shown.Now we discuss these three regions one by one with detailed.But in other 2 regions that are saturation region in which transistor is in on state and cut-off region in which transistor is off, work as a switch.In the first region that is active regions, transistor operates as an amplifier.
There are 3 regions in which transistor operates the first one is active, second one is saturation and third one is cut-off region.For understanding the working of a transistor as switch we use bipolar junction transistor ( BJT) and will construct its current versus voltage curve.So let's get started with Transistor as a Switch. In today's post, we will discuss how we can use a transistor as a switch and also see its practical working in different circuits. Most transistors are constructed from silicon and germanium but other semiconductor materials are also used for construction of transistors. Depending on doping level transistors are classified into 2 types first one NPN and the second one is PNP transistor. It also used in different engineering projects and circuitry. It was created by William Shockley (who was a physicist of United States of America) in 1947. In today’s tutorial, we will have a look at Transistor as a Switch. The transistor is a 3 pin semiconductor module used for different amplifier and switching circuits. Hello friends, I hope you all are doing great.
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