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Electronics - Bipolar Junction Transistors (BJT) - Discussion

Discussion Forum : Bipolar Junction Transistors (BJT) - General Questions (Q.No. 26)
Bipolar Junction Transistors (BJT)
26.
Often a common-collector will be the last stage before the load; the main function(s) of this stage is to:
provide voltage gain
provide phase inversion
provide a high-frequency path to improve the frequency response
buffer the voltage amplifiers from the low-resistance load and provide impedance matching for maximum power transfer
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
3 comments Page 1 of 1.
Shekhar said:   1 decade ago
The low output impedance allows a source with a large output impedance to drive a small load impedance; it functions as a voltage buffer.
(2)
Ammu said:   1 decade ago
Common collector is used as an impedance matching device since its input impedance is much higher than its output impedance. It is also termed a "buffer" for this reason.
(2)
Shanthi said:   1 decade ago
Please can any one give the explanation for this answer.
(1)
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