Frequency responce in a common base amplifier

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Discussion Overview

The discussion revolves around the frequency response of a common base amplifier, focusing on how voltage gain varies with the frequency of the AC signal. Participants inquire about the role of coupling capacitors and the effects of frequency on voltage gain across mid, high, and low frequency ranges.

Discussion Character

  • Exploratory, Technical explanation, Homework-related

Main Points Raised

  • Some participants ask how the voltage gain of the amplifier depends on the frequency of the AC signal.
  • Questions are raised regarding the role of coupling capacitors in the amplifier's operation.
  • There is an inquiry into how voltage gain is affected in the mid, high, and low frequency ranges.
  • One participant emphasizes the need for the original poster to show their work before receiving tutorial help.
  • Another participant suggests that beginners should research basic concepts before seeking assistance.
  • A later reply prompts the original poster to clarify their understanding of mid-band AC gain and how capacitors should be treated at different frequency ranges.

Areas of Agreement / Disagreement

There is no consensus among participants, as some emphasize the need for foundational understanding while others focus on specific technical questions regarding the amplifier's behavior.

Contextual Notes

Participants have not yet resolved the implications of frequency on voltage gain or the specific roles of coupling capacitors, and there are varying levels of understanding among participants.

Who May Find This Useful

This discussion may be useful for students or individuals interested in amplifier design, frequency response analysis, and the role of capacitors in electronic circuits.

kpstp88
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How the voltage gain of the amplifier depends on the frequency of ac signal. please explain.

what is the role of coupling capacitors?

how voltage gain is effected in mid , high and low frequency range?
thanks.
 
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kpstp88 said:
How the voltage gain of the amplifier depends on the frequency of ac signal. please explain.

what is the role of coupling capacitors?

how voltage gain is effected in mid , high and low frequency range?
thanks.

You must show your work before we can offer any tutorial help. Read the Rules link at the top of the page.
 
kpstp88 said:
How the voltage gain of the amplifier depends on the frequency of ac signal. please explain.

what is the role of coupling capacitors?

how voltage gain is effected in mid , high and low frequency range?
thanks.

If you are an absolute beginner, I recommend you to google these terms. If you, again, need help then you must show your effort and want people to help you... as Berkeman said.
 
The first and third questions are related to your general understanding of small signal voltage gain of an amplifier. To start you off, what do you understand about the mid-band AC gain of an amplifier? How should you treat capacitors at high and low frequency ranges?
 

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