types and configurations of transistor
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☜☆☞ The three different transistor configurations are:-
▶Common base:-This transistor configuration provides a low input impedance while offering a high output impedance. Although the voltage is high, the current gain is low and the overall power gain is also low when compared to the other transistor configurations available. The other salient feature of this configuration is that the input and output are in phase.
As can be seen from the diagram, in this transistor configuration, the base electrode is common to both input and output circuits.
▶Common collector:-This transistor configuration is also known as the emitter follower because the emitter voltage follows that of the base. Offering a high input impedance and a low output impedance it is widely used as a buffer. The voltage gain is unity, although current gain is high. The input and output signals are in phase.
As can be seen from the diagram, in this transistor configuration, the collector electrode is common to both input and output circuits.
▶Common emitter:-This transistor configuration is probably the most widely used. The circuit provides a medium input and output impedance levels. Both current and voltage gain can be described as medium, but the output is the inverse of the input, i.e. 180° phase change. This provides a good overall performance and as such it is often thought of as the most widely used configuration.
HOPE MY ANSWER HELPS YOU....
:)
HERE IS YOUR ANSWER.....
▶▶▶▶▶▶▶▶▶▶▶▶▶▶▶▶▶▶▶▶
☜☆☞ The three different transistor configurations are:-
▶Common base:-This transistor configuration provides a low input impedance while offering a high output impedance. Although the voltage is high, the current gain is low and the overall power gain is also low when compared to the other transistor configurations available. The other salient feature of this configuration is that the input and output are in phase.
As can be seen from the diagram, in this transistor configuration, the base electrode is common to both input and output circuits.
▶Common collector:-This transistor configuration is also known as the emitter follower because the emitter voltage follows that of the base. Offering a high input impedance and a low output impedance it is widely used as a buffer. The voltage gain is unity, although current gain is high. The input and output signals are in phase.
As can be seen from the diagram, in this transistor configuration, the collector electrode is common to both input and output circuits.
▶Common emitter:-This transistor configuration is probably the most widely used. The circuit provides a medium input and output impedance levels. Both current and voltage gain can be described as medium, but the output is the inverse of the input, i.e. 180° phase change. This provides a good overall performance and as such it is often thought of as the most widely used configuration.
HOPE MY ANSWER HELPS YOU....
:)
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