Distortion in rc coupled amplifier

Click For Summary

Discussion Overview

The discussion revolves around the issue of signal distortion in an RC coupled amplifier. Participants explore potential causes of the distortion and seek solutions, focusing on circuit design and signal characteristics.

Discussion Character

  • Exploratory, Technical explanation, Debate/contested

Main Points Raised

  • One participant suggests that the distortion may be due to driving the amplifier with too much signal or incorrect biasing.
  • Another participant questions the method of determining distortion, asking if the output was connected to a speaker.
  • A participant clarifies that they were using a small signal amplifier to understand its operation, feeding a 50mV sine wave and observing that the output signal is not sinusoidal on the CRO.
  • There is a request for a schematic of the circuit to better diagnose the issue.

Areas of Agreement / Disagreement

Participants have not reached a consensus on the cause of the distortion, and multiple potential explanations are being discussed.

Contextual Notes

Participants have not provided a schematic or detailed circuit information, which may limit the ability to diagnose the issue accurately.

amaresh92
Messages
163
Reaction score
0
hi,
when i was making a rc coupled amplifier but as soon as i connect the input signal the signal gets distorted.can anyone tell me the reason for that and how to avoid the distortion?

thanks,
 
Engineering news on Phys.org
Yes, you might be driving the amplifier with too much signal, or you might have the bias wrong.

Post a diagram of your circuit and it may be possible to see what is wrong.

How do you know it was distorted? Were you trying to drive a speaker with the output?
 
vk6kro said:
How do you know it was distorted? Were you trying to drive a speaker with the output?

no. actually i was making a small signal amplifier to understand the working of it.i fed a sine wave of 50mv and connected the output and input to CRO.it shows that input signal is not at all sinusoidal sine.

thanks for paying attention.
 
amaresh92 said:
no. actually i was making a small signal amplifier to understand the working of it.i fed a sine wave of 50mv and connected the output and input to CRO.it shows that input signal is not at all sinusoidal sine.

thanks for paying attention.

Can you post a schematic of your circuit?
 

Similar threads

Replies
8
Views
2K
  • · Replies 3 ·
Replies
3
Views
3K
  • · Replies 27 ·
Replies
27
Views
3K
  • · Replies 5 ·
Replies
5
Views
3K
  • · Replies 12 ·
Replies
12
Views
3K
  • · Replies 7 ·
Replies
7
Views
2K
  • · Replies 7 ·
Replies
7
Views
2K
  • · Replies 10 ·
Replies
10
Views
3K
  • · Replies 11 ·
Replies
11
Views
2K
  • · Replies 1 ·
Replies
1
Views
2K