[Circuits] Using Superposition find vo

  • Context: Engineering 
  • Thread starter Thread starter CircuitsSuck
  • Start date Start date
  • Tags Tags
    Circuits Superposition
Click For Summary
SUMMARY

The discussion focuses on solving for the voltage vx in a circuit using the Superposition theorem. The user is struggling to find the voltage vx" and is advised to re-evaluate their nodal analysis, specifically the equation involving the currents i1, i3, and i4. The correct equation should reflect three terms instead of four, indicating a misunderstanding in the application of Kirchhoff's laws. The conversation emphasizes the importance of correctly identifying dependent sources and suggests that simpler methods may be employed before applying more complex analysis techniques.

PREREQUISITES
  • Understanding of Superposition theorem in circuit analysis
  • Familiarity with Mesh Analysis (KVL) and Node Analysis (KCL)
  • Proficiency in applying Ohm's Law
  • Knowledge of dependent and independent sources in circuits
NEXT STEPS
  • Review the Superposition theorem in electrical circuits
  • Practice Mesh Analysis (KVL) with various circuit configurations
  • Study Node Analysis (KCL) and its applications in circuit design
  • Explore techniques for identifying and analyzing dependent sources in circuits
USEFUL FOR

Electrical engineering students, circuit designers, and anyone seeking to improve their skills in circuit analysis and problem-solving using Superposition and Kirchhoff's laws.

CircuitsSuck
Messages
1
Reaction score
0
I've been trying to to solve this for hours now and I am frustrated. I think I have vx', which might be wrong, but I cannot find vx" for the life of me. I have posted all my work, I know what I have down so far is correct, but I am missing something to move forward.


Homework Statement



Using Superposition, find vx in the circuit figure.

2wdd1n6.png




Homework Equations



vx= vx' + vx"

Mesh Analysis (KVL), Node Analysis (KCL), Ohm's Law


The Attempt at a Solution



I cannot find vx"! I need i3, but I literally can't find anything in the second circuit. Please help!

http://i61.tinypic.com/2zflrbc.jpg
 
Physics news on Phys.org
Maybe you want to redo your calculation for your nodal analysis at point Vx

Your equation should be 5 = i1 + i3 + i4 (since i2 = i3 + i4), but I see 4 terms in your equation, which should only be 3 terms?
 
Using Superposition, find vx in the circuit figure.
Unless it is stipulated that you must use mesh or nodal analysis, why don't you do it the easiest way you can see? Then once you can get it right that way, try it afresh using the more formal approach.

The dependent source is active with either source, whether you're considering the 25V source or the 5A source.
 

Similar threads

Source Superposition: Find Vx, Vx', Vx'', Vx
  • · Replies 1 ·
Replies
1
Views
3K
Engineering Help me finding the current in here please (Circuit analysis)
  • · Replies 3 ·
Replies
3
Views
2K
Engineering Finding the voltage in this AC circuit
  • · Replies 2 ·
Replies
2
Views
1K
What is the Voltage Gain of Vo/Vi in an Op Amp Circuit?
  • · Replies 3 ·
Replies
3
Views
2K
Find V1 & V2 with Nodal Voltage Analysis
  • · Replies 1 ·
Replies
1
Views
2K
Solving for Vo in terms of Vs/Vx
  • · Replies 12 ·
Replies
12
Views
3K
Engineering Input Impedance of a MOSFET circuit
  • · Replies 2 ·
Replies
2
Views
3K
Engineering Circuit Theory Question KCL and Dependent Sources?
  • · Replies 4 ·
Replies
4
Views
3K
Finding Vx with Nodal Analysis in a Circuit with Multiple Voltage Sources
  • · Replies 1 ·
Replies
1
Views
3K
The superposition theorem with dependent sources
  • · Replies 9 ·
Replies
9
Views
3K