![]() ![]() Explain the operation of common collector configuration with suitable characteristics in detail.Īns. Here collector and emitter junctions both are forward biased.In saturation region, current I C flows even if V CB ≅ 0. Here emitter base and collector base junctions both are reversed biased.In cut off region, a small amount of collector current flows even when I E= 0. In this region, the base emitter function is forward biased whereas collector base function is reversed biased. In active region, the collector current is independent of collector voltage and depends upon emitter current but if V CB increases beyond a certain value, I C increases rapidly due to avalanche breakdown. I E increases rapidly with small increase in V BE i.e., input resistance is very small. ![]() There exists a cut in, offset or threshold voltage V BE below which the current is very small. The collector current can also be expressed as The current amplification factor is now defined as the ratio of change in collector to emitter current at constant collector base voltage when a signal is supplied.Ħ. In the sense that collector current approaches emitter current, a transistor with a higher value is better.Ĥ. It is defined as the ratio of the collector current t.o the emitter current of a transistor when no signal is applied and is called DC alpha (□ DC).ģ. As depicted in Fig., the output is gathered from the collector and base.ġ. The input signal is applied between the base and the emitter in this setup. Draw the basic structure of CB BJT and explain its principle of operation with in neat diagram along with its input and output characteristics.ġ. Important Questions For Electronic Engineering : You want more useful details regarding this subject. It discusses transistor biasing, amplifier designs, and other issues. This blog contains critical questions and answers for UNIT-3: BJT AND FET Electronic Engineering AKTU students. ![]()
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