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The output current of a transistor is controlled by the current in the 'base' input: Increasing the control current will increase the output current in a more or less linear fashion.
In the saturation region, this is no longer true: The transistor is nearing the limits of how much current it can conduct, so increasing the control current further has little or no effect.
When using a transistor as an amplifier, you want to stay away from the saturation region as it would distort the signal you are amplifying.
When using a transistor as an on/off switch, as in digital circuits, being in the saturated region is 'on' and a normal mode of operation.
What else can I help you with?
Is transistor a linear or non linear device?
we will operate transistor mainly in 4 regions..namely active ,cutoff,saturation and pinch off region depending on the type of biasing. if it is under active region then transistor is a linear device.. linearity in the sense if the output is proportional to input then it is said to be linear.
Is active is a cutoff region of transistor?
The active region of a transistor is when the transistor has sufficient base current to turn the transistor on and for a larger current to flow from emitter to collector. This is the region where the transistor is on and fully operating.
A transistor is in active region when?
a transistor in active region when emitter junction is forward biased nd collector junction is reverse biased
What is the biasing technique in transistor for it to be in active region?
For a transistor to be in active region : Base Emitter junction should be forward biased and Emitter collector junction should be reverse biased.
What are the operating regions of transistors and explain it?
There are three operating regions in transistor...(Transfer-Resistor)1)cutoff region2)Active region3)Saturation regionActive region:It is the central region where there are curves and where slope is taken.it is the region where emitter-base is forward biased and collector-base is reversed bias.Cutoff region:It is the region which lies below the curves. it is the region where the transistor is in OFF state.in this region both emitter-base and collector-base is reversed bias(i.e no sufficient voltage is applied so that the voltage does not break the DEPLETION region).Saturation region:It is the region situated to near the active region near Y-axis.It is the region in which the both emitter-base and collector-base is forward biased.Based on application the transistor is decided where to lie.for example transistors are made to lie in active region to make it as amplifier.when transistors are used as switch it is made to lie in saturation region(when switch is made as ON) and cut-off region(when switch is made as OFF).....Thanks guys for reading this. please forgive me if there are any mistakes....ANSWER: In actuality there is only one REGION The other regions are not operating regions but rather states. An operating region on a transistor is set up during design of an amplifier to transfer maximum undirstorted power to the load. This design is called BIAS
Which regions in output characteristics are used to switching action of transistor in CE configuration?
In a common emitter (CE) configuration, the output characteristics used for switching action are primarily the active region and the saturation region. When the transistor is in the active region, it can amplify signals, while in the saturation region, it acts as a closed switch, allowing maximum current to flow. The transition between these two regions is crucial for effective switching, where the transistor is turned on (saturation) or off (cut-off) to control the output.
Is transistor a linear or non linear device?
we will operate transistor mainly in 4 regions..namely active ,cutoff,saturation and pinch off region depending on the type of biasing. if it is under active region then transistor is a linear device.. linearity in the sense if the output is proportional to input then it is said to be linear.
Is active is a cutoff region of transistor?
The active region of a transistor is when the transistor has sufficient base current to turn the transistor on and for a larger current to flow from emitter to collector. This is the region where the transistor is on and fully operating.
Why transistors are designed?
For switching applications transistor is biased to operate in the saturation or cutoff region. Transistor in cutoff region will act as an open switching whereas in saturation will act as a closed switch.
What is meant by saturation region active region and cut off region?
In the context of a bipolar junction transistor (BJT), the saturation region refers to the state where both the base-emitter and base-collector junctions are forward-biased, allowing maximum current to flow from collector to emitter. The active region occurs when the base-emitter junction is forward-biased while the base-collector junction is reverse-biased, enabling the transistor to amplify signals. The cutoff region is when both junctions are reverse-biased, resulting in minimal current flow, effectively turning the transistor off. These regions define the operational modes of the transistor in electronic circuits.
A transistor is in active region when?
a transistor in active region when emitter junction is forward biased nd collector junction is reverse biased
What is a closed transition switch?
The transistor have three regions namely cut off,active,and saturation.When the switch is in saturation region then it is called the transition on or we can say the switch is closed
Why a transistor can be operated in active region?
a transistor can only work in active region cox in active region collector base junction is in reverse bias and emitter base junction is in forward bias.
How many states does a transistor have?
A transistor can be in three conditions or states. It can be active (at a voltage higher than the emitter), in saturation or cut off (no current).
Why biasing a transistor?
We bias transistors in order to determine the modes of operation ( that is whether the transistor is operating in the active cut off or the saturation regions).
What arer the 3 legs of a transistor?
Emitter, Collector and Base cutoff region, saturation region, and liner region
What is the biasing technique in transistor for it to be in active region?
For a transistor to be in active region : Base Emitter junction should be forward biased and Emitter collector junction should be reverse biased.
