Signal at output using transfer characteristic

Click For Summary
SUMMARY

The discussion focuses on calculating the output signal for an amplifier with the transfer characteristic defined by the equation vO = 10 - 10 - 11e^(40*vi). Given an output bias of 5V, an input bias of 0.673V, and an input signal of 1 mV, the user initially calculated the output voltage (vO) as 4.888V, leading to a signal output of -0.112V. However, the correct signal output is -0.204V, indicating the necessity of using more precise values for the input bias during calculations.

PREREQUISITES
  • Understanding of amplifier transfer characteristics
  • Familiarity with biasing in electronic circuits
  • Basic knowledge of exponential functions in signal processing
  • Proficiency in voltage calculations and signal superposition
NEXT STEPS
  • Review amplifier transfer functions and their applications
  • Study the impact of input bias on output signals in amplifiers
  • Learn about precision in numerical calculations for electronic circuits
  • Explore signal superposition principles in more complex circuits
USEFUL FOR

Electrical engineering students, circuit designers, and anyone involved in amplifier design and analysis will benefit from this discussion.

mishima
Messages
576
Reaction score
43

Homework Statement


Find the output signal for an amplifier with transfer characteristic:
vO = 10-10-11e40*vi
output bias of 5V
input bias of 0.673 V
and an input signal of 1 mV superimposed on the bias


Homework Equations


vO = bias out + signal out
vI = bias in + signal in

The Attempt at a Solution


I plug in .673+0.001=0.674 for vi (signal in) and get 4.888 for vO. I then take 4.888-5= -0.112 V for signal out. Book answer is -.204 V...
 
Physics news on Phys.org
Did you check to determine what output the amplifier's equation gives for input of 0.67300 volts?
 
Thank you, I needed to include more digits when solving for the input bias.
 

Similar threads

  • · Replies 1 ·
Replies
1
Views
1K
  • · Replies 12 ·
Replies
12
Views
2K
  • · Replies 13 ·
Replies
13
Views
3K
  • · Replies 8 ·
Replies
8
Views
3K
  • · Replies 6 ·
Replies
6
Views
2K
  • · Replies 6 ·
Replies
6
Views
2K
  • · Replies 5 ·
Replies
5
Views
2K
Replies
13
Views
3K
  • · Replies 24 ·
Replies
24
Views
9K
  • · Replies 1 ·
Replies
1
Views
4K