What is the difference between CC and CE?
A CC circuit is usually used as an inverting amplefier, while A CE circuit is used as a non-inverting buffer.
What is common base configuration in BJT?
The Common Base Amplifier is another type of bipolar junction transistor, (BJT) configuration where the base terminal of the transistor is a common terminal to both the input and output signals, hence its name common base (CB). That is the base-emitter junction is forward-biased.
What are different BJT configurations?
The three basic configurations of a BJT are (a) common emitter (CE), (b) common base (CB), (c) common collector (CC) or emitter follower.
What do you mean by common emitter and common base transistor?
The common-emitter circuit is the most widely used of junction, transistor amplifiers. As compared with the common-base connection, it has higher input impedance and lower output impedance. Current gain in the common emitter circuit is obtained from the base and the collector circuit currents.
Why is common emitter preferred over common base?
Common emitter circuit is preferred over a common base circuit in amplifiers because the resistance of the common emitter circuit is much less than that of the common base circuit. Also the power gain in the common emitter circuit is much higher than that in a common base circuit.
What is common base emitter?
In common base configuration, emitter is the input terminal, collector is the output terminal and base terminal is connected as a common terminal for both input and output. Thus the base terminal of a transistor is common for both input and output terminals and hence it is named as common base configuration.
What are the uses of common base configuration?
Applications. This arrangement is not very common in low-frequency discrete circuits, where it is usually employed for amplifiers that require an unusually low input impedance, for example to act as a preamplifier for moving-coil microphones.
What does common emitter mean?
In common emitter configuration, base is the input terminal, collector is the output terminal and emitter is the common terminal for both input and output.