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What are the output characteristics?
Output Characteristics: The curve is got by plotting the output current against output voltage keeping the input current constant. Current Transfer Characteristics: This characteristic curve describes the variation of output current in accordance with the input current, keeping the output voltage constant.
What is output characteristics of common emitter configuration?
In common emitter configuration, input voltage is applied between base and emitter terminals and out put is taken across the collector and emitter terminals. Therefore the emitter terminal is common to both input and output. The input characteristics resemble that of a forward biased diode curve.
How is the output characteristic of a common emitter obtained?
The output characteristic of a common emitter is obtained between the output voltage VCE and output current IC at a constant input current IB. By keeping the base current IB constant and changing the value of output voltage VCE at different points, we can calculate the value of collector IC for each point.
What’s the difference between a common base and emitter terminal?
That means the emitter terminal and common base terminal are known as input terminals whereas the collector terminal and common base terminal are known as output terminals. In common base configuration, the base terminal is grounded so the common base configuration is also known as grounded base configuration.
How are output characteristics of common base configuration obtained?
The output characteristics of common base configuration are obtained between output current and output voltage with constant input current. First keep the emitter current constant and vary the VCB value for different points, now record the IC values at each point.
How is the emitter current related to the base current?
Under this condition, the emitter current is equivalent to the sum of base current and collector current. This equation is transistor equations for the CE configuration. The ratio of the collector current to that of emitter current gives current gain alpha in the Common Base configuration.