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Basic Op-Amp Circuits

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 Summing Amplifier

  Summing amplifier circuit

Given:

R1 = 54 W, v1 = 1.7 V
R2 = 85 W, v2 = 1.3 V
R3 = 25 W, v3 = 1.8 V
Rf = 27 W

Find:

vo

Hint:

Output voltage of an op-amp summing circuit

 Solution:

vo = 3.2 V

Notes & Instructions

Solve the op-amp problem on a separate sheet of paper. Click...

  • Hint to see a helpful equation.
  • Solution to see the answer(s)
  • Next to see the next problem in this series.
  • Quit to end this session.

 

Rf = value of the feedback resistance
Ri = value of the input resistance
Av = voltage gain
vi = ac voltage in
vo = ac voltage out

Author: David L. Heiserman
Publisher: SweetHaven Publishing Services

Copyright © 2005, 2007  David L. Heiserman
All Rights Reserved