discussion 1 what is iceo 2 list various operating regions of transistor 3 suggest an electronic

Step 1: Iceo stands for Collector Cut-off Current, which is the collector current when the base

Discussion 1 what is iceo 2 list various operating regions...

Transcript

00:01 This is the question based on the transistor.

00:05 First question is what is iceo? this is the collector emitter current.

00:38 That is collector current when base is open in common emitter configuration.

01:10 That means when the base is open, that means no signal is coupled at the base of the transistor.

01:16 Some current flow into the output circuit that is known the leakage current and that leakage current is represented by iceo let us assume the circuit diagram here this is a common emitter configuration and here the base is open let us assume this in the signal and this is bcc and here is a b terminal this is emitter terminal and this is collector current and the collector current now this time that this base is open that means the value of the i b is zero no signal is applied at the base of the transistor that means this base emitter junction is not forward bias so this junction is reversed biased that means in reverse by some current flow into this circuit and this current is known as the leakage current or iceo current.

02:56 That is the collector current with base open is known as the iceo.

03:04 That is collector leakage current and this current flow into this circuit because of the minority charge carriers.

03:28 Higher the manned charge carriers and higher this leakage current okay this is the iceo concept now second question is list various operating regions of the transistor second various operating regions operating regions of transistor if you take the output characteristics of npm common emitter configuration and you got some values for the ic for different value of the ib say if you are plotting the graph between the vce and the ic then you got a graph like this and so on now suppose this the saturation here there are many lines so is i b is equal to 0 micropamper and this is i b is equal to 10 microampere this is i b is equal to 20 micrampure and this is i b is equal to i b saturate so as you can see here there are three regions first one is when the i b is equal to zero that with the base is open in this case so this region is known as the cutoff region and third region is the when the ib saturated the collector current becomes the saturated and this region is known as the saturation region and this region mostly lie when the value of the vc is in the range minus 0 .1 2 around 0 .2 and this region in the region in the region in the region in the saturation region around here so this region is saturation region and third region is the active region the region between the saturation region the active and the cutoff region is known as the active region which is this this one around here to here and transistor always operate in this region that may see you can say a transistor operate always in this region from here this transistor will not work in this cutoff region not in the saturation it always hopped in this active region so that means there are three region number one cutoff region in cutoff region the base emitter tension is not forward wise that is base emitter intention is no longer forward vice second is saturation region that is collector base junction is no longer reverse bias and the active region the base amity junction is forward vice and collector way junction is reverse bias that means transistor is always work in this region always operate in activity that does not work in this cutoff region and the saturation region now next question is suggest an electronic circuit to get the input and the output characteristics on the screen of the oscilloscope that means they are asking about the circuit diagram to take the input and the output correct third circuit diagram for input and output characteristics of c .e...

Question

Discussion: 1 What is Iceo? 2 List various operating regions of Transistor 3 Suggest an electronic circuit to get the input and output characteristics on the screen of the oscilloscope. 4. List various biasing circuits. 5. Give Transistor current equation in CE configuration

Question

Discussion: 1 What is Iceo? 2 List various operating regions of Transistor 3 Suggest an electronic circuit to get the input and output characteristics on the screen of the oscilloscope. 4. List various biasing circuits. 5. Give Transistor current equation in CE configuration

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